Port Pi CLI to browser terminal

README.md

@@ -1,5 +1,5 @@
 ---
-title: Pi Web Agent
+title: Pi CLI Web
 sdk: static
 app_file: dist/index.html
 fullWidth: true
@@ -13,9 +13,11 @@ custom_headers:
   cross-origin-resource-policy: cross-origin
 ---
 
-# Pi Web Agent
+# Pi CLI Web
 
-This workspace ships a browser-only pi agent app backed by Transformers.js and WebContainers. The default planner is `onnx-community/Qwen2.5-Coder-0.5B-Instruct` because it produced the strongest browser result in the local task suite; Qwen3 0.6B and the converted MiniCPM5 model remain selectable for comparison.
+This workspace ships a browser-only port of the `pi` CLI backed by Transformers.js, WebContainers, and a real terminal surface. The UI uses `ghostty-web` first, with `@xterm/xterm` as a fallback, and exposes Pi's built-in tool names: `read`, `bash`, `edit`, `write`, plus read-only `grep`, `find`, and `ls`.
+
+The default planner is `onnx-community/Qwen2.5-Coder-0.5B-Instruct` because it produced the strongest browser result in the local task suite; Qwen3 0.6B and the converted MiniCPM5 model remain selectable for comparison.
 
 Published artifact: https://huggingface.co/Mike0021/MiniCPM5-1B-ONNX-Web
 
@@ -39,14 +41,16 @@ Open http://localhost:5173/.
 The app uses:
 
 - `@earendil-works/pi-agent-core` for the agent loop, transcript state, and tool execution.
+- `@earendil-works/pi-coding-agent` as the installed CLI contract for parity checks against `pi --help` and `pi --version`.
+- `ghostty-web` as the terminal frontend, with `@xterm/xterm` fallback.
 - `@huggingface/transformers` with `onnx-community/Qwen2.5-Coder-0.5B-Instruct` as the default local browser planner.
 - `@webcontainer/api` for the client-only sandbox with a virtual filesystem and browser-contained Node.js processes.
 
-Vite serves the app with COOP/COEP headers and boots WebContainers with `coep: "credentialless"`. The deterministic test model is available at `http://localhost:5173/?mode=mock&device=wasm` for fast harness and sandbox smoke tests without downloading an ONNX model. The local model defaults to a tested 256-token generation budget in WASM mode and the UI allows budgets up to 8192.
+Vite serves the app with COOP/COEP headers and boots WebContainers with `coep: "credentialless"`. The deterministic test model is available at `http://localhost:5173/?mode=mock&device=wasm` for fast harness and sandbox smoke tests without downloading an ONNX model. The local model defaults to a tested 256-token generation budget in WASM mode and supports budgets up to 8192 through the `tokens=` query parameter and `/settings tokens=<n>`.
 
 The Static Space uses the same isolation policy through `custom_headers` in this README frontmatter. The app is built with `npm run build` and the generated `dist/` directory is uploaded to the Space.
 
-## Test the Agent App
+## Test the CLI Web App
 
 Start the dev server, then run:
 
@@ -54,7 +58,15 @@ Start the dev server, then run:
 npm run smoke:web
 ```
 
-The smoke test opens Chromium, confirms `crossOriginIsolated`, submits the chat prompt in deterministic mode, boots the WebContainer sandbox, writes `hello.js`, spawns `node hello.js`, and checks for `pi sandbox result: 42` in the chat transcript.
+The smoke test opens Chromium, confirms `crossOriginIsolated`, verifies the terminal startup, runs `/help`, executes a direct `!!node ...` command, then submits a deterministic Pi task that writes `hello.js`, runs `bash`/Node in WebContainer, and checks for `pi sandbox result: 42`.
+
+To compare the web terminal contract against the installed real CLI:
+
+```bash
+npm run parity:cli
+```
+
+This checks `pi --version`, the `pi --help` contract, slash commands, and the built-in tool names exposed by the browser terminal.
 
 For the heavier end-to-end check with the real ONNX model in browser WASM mode:
 
@@ -70,7 +82,7 @@ The complex smoke test covers simple code execution, installing and using an npm
 npm run smoke:complex
 ```
 
-The sandbox can install and use Node packages through the same `run_command` tool, for example `npm install is-number@7.0.0` followed by `node check-package.mjs`.
+The sandbox can install and use Node packages through the same Pi `bash` tool, for example `npm install is-number@7.0.0` followed by `node check-package.mjs`.
 
 To probe larger browser generation budgets:
 
@@ -80,8 +92,10 @@ TOKEN_BUDGETS=80,256,2048,8192 npm run probe:tokens
 
 Measured local WASM results with Qwen2.5-Coder 0.5B:
 
-- `npm run smoke:local-model` passed at 80 max new tokens.
-- `MAX_NEW_TOKENS=256 npm run smoke:complex` passed simple, npm dependency, and multi-file module tasks.
+- `npm run smoke:web` passed in deterministic mode using the `ghostty-web` terminal.
+- `npm run parity:cli` passed against `@earendil-works/pi-coding-agent@0.77.0`.
+- `MAX_NEW_TOKENS=80 npm run smoke:local-model` passed with the real browser model.
+- `MAX_NEW_TOKENS=256 npm run smoke:complex` passed simple, npm dependency, and multi-file module tasks with the real browser model.
 - `TOKEN_BUDGETS=80,160,256,512,1024,2048,4096,8192 npm run probe:tokens` passed. Higher caps were accepted; for the probe task the model stopped naturally before using the full cap.
 
 ## Verify the Published Artifact

dist/assets/__vite-browser-external-2447137e-BIHI7g3E.js

@@ -0,0 +1 @@
+const e={};export{e as default};

dist/assets/addon-fit-DX4qG4td.js

@@ -0,0 +1 @@
+var p=2,c=1,d=class{activate(e){this._terminal=e}dispose(){}fit(){let e=this.proposeDimensions();if(!e||!this._terminal||isNaN(e.cols)||isNaN(e.rows))return;let i=this._terminal._core;(this._terminal.rows!==e.rows||this._terminal.cols!==e.cols)&&(i._renderService.clear(),this._terminal.resize(e.cols,e.rows))}proposeDimensions(){if(!this._terminal||!this._terminal.element||!this._terminal.element.parentElement)return;let e=this._terminal._core._renderService.dimensions;if(e.css.cell.width===0||e.css.cell.height===0)return;let i=this._terminal.options.scrollback===0?0:this._terminal.options.overviewRuler?.width||14,s=window.getComputedStyle(this._terminal.element.parentElement),l=parseInt(s.getPropertyValue("height")),o=Math.max(0,parseInt(s.getPropertyValue("width"))),t=window.getComputedStyle(this._terminal.element),r={top:parseInt(t.getPropertyValue("padding-top")),bottom:parseInt(t.getPropertyValue("padding-bottom")),right:parseInt(t.getPropertyValue("padding-right")),left:parseInt(t.getPropertyValue("padding-left"))},a=r.top+r.bottom,n=r.right+r.left,h=l-a,m=o-n-i;return{cols:Math.max(p,Math.floor(m/e.css.cell.width)),rows:Math.max(c,Math.floor(h/e.css.cell.height))}}};export{d as FitAddon};

dist/assets/{azure-openai-responses-DQgZJh_L.js → azure-openai-responses-BGzUURKK.js}

@@ -1 +1 @@
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+import{O as h,a as c,r as m,i as _,b as R}from"./client-Sq9UPDIz.js";import{A as y,g as l,a as I}from"./index-CB_zB4U3.js";import{h as g}from"./headers-CgnjaPPL.js";import{c as v}from"./openai-prompt-cache-h_V5PL7P.js";import{p as O,c as N,a as b}from"./openai-responses-shared-DBUlz2NN.js";import{b as P}from"./transform-messages-DSNYjDRn.js";import"./hash-DMDecQcg.js";import"./json-parse-cUk3uCki.js";import"./sanitize-unicode-B62XMGgN.js";var w={};class U extends h{constructor({baseURL:t=m("OPENAI_BASE_URL"),apiKey:e=m("AZURE_OPENAI_API_KEY"),apiVersion:s=m("OPENAI_API_VERSION"),endpoint:n,deployment:a,azureADTokenProvider:o,dangerouslyAllowBrowser:i,...u}={}){if(!s)throw new c("The OPENAI_API_VERSION environment variable is missing or empty; either provide it, or instantiate the AzureOpenAI client with an apiVersion option, like new AzureOpenAI({ apiVersion: 'My API Version' }).");if(typeof o=="function"&&(i=!0),!o&&!e)throw new c("Missing credentials. 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dist/assets/{google-H5Z3-yH4.js → google-kA_fw5EZ.js}

@@ -1 +1 @@
-import{i as T,r as b,m as v,G as S,c as R,a as L,b as _}from"./google-shared-CZIKa0Kf.js";import{A as G,g as x,c as O,a as A}from"./index-CgfZNSZZ.js";import{s as N}from"./sanitize-unicode-B62XMGgN.js";import{b as E}from"./transform-messages-Bxe2XUr4.js";let P=0;const f=(e,o,n)=>{const i=new G;return(async()=>{const t={role:"assistant",content:[],api:"google-generative-ai",provider:e.provider,model:e.id,usage:{input:0,output:0,cacheRead:0,cacheWrite:0,totalTokens:0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}},stopReason:"stop",timestamp:Date.now()};try{const r=n?.apiKey||x(e.provider)||"",c=W(e,r,n?.headers);let u=B(e,o,n);const y=await n?.onPayload?.(u,e);y!==void 0&&(u=y);const M=await c.models.generateContentStream(u);i.push({type:"start",partial:t});let a=null;const C=t.content,l=()=>C.length-1;for await(const g of M){t.responseId||=g.responseId;const d=g.candidates?.[0];if(d?.content?.parts)for(const s of d.content.parts){if(s.text!==void 0){const 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h=s.functionCall.id,p={type:"toolCall",id:!h||t.content.some(I=>I.type==="toolCall"&&I.id===h)?`${s.functionCall.name}_${Date.now()}_${++P}`:h,name:s.functionCall.name||"",arguments:s.functionCall.args??{},...s.thoughtSignature&&{thoughtSignature:s.thoughtSignature}};t.content.push(p),i.push({type:"toolcall_start",contentIndex:l(),partial:t}),i.push({type:"toolcall_delta",contentIndex:l(),delta:JSON.stringify(p.arguments),partial:t}),i.push({type:"toolcall_end",contentIndex:l(),toolCall:p,partial:t})}}d?.finishReason&&(t.stopReason=v(d.finishReason),t.content.some(s=>s.type==="toolCall")&&(t.stopReason="toolUse")),g.usageMetadata&&(t.usage={input:(g.usageMetadata.promptTokenCount||0)-(g.usageMetadata.cachedContentTokenCount||0),output:(g.usageMetadata.candidatesTokenCount||0)+(g.usageMetadata.thoughtsTokenCount||0),cacheRead:g.usageMetadata.cachedContentTokenCount||0,cacheWrite:0,totalTokens:g.usageMetadata.totalTokenCount||0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}},O(e,t.usage))}if(a&&(a.type==="text"?i.push({type:"text_end",contentIndex:l(),content:a.text,partial:t}):i.push({type:"thinking_end",contentIndex:l(),content:a.thinking,partial:t})),n?.signal?.aborted)throw new Error("Request was aborted");if(t.stopReason==="aborted"||t.stopReason==="error")throw new Error("An unknown error occurred");i.push({type:"done",reason:t.stopReason,message:t}),i.end()}catch(r){for(const c of t.content)"index"in c&&delete c.index;t.stopReason=n?.signal?.aborted?"aborted":"error",t.errorMessage=r instanceof Error?r.message:JSON.stringify(r),i.push({type:"error",reason:t.stopReason,error:t}),i.end()}})(),i},F=(e,o,n)=>{const i=n?.apiKey||x(e.provider);if(!i)throw new Error(`No API key for provider: ${e.provider}`);const t=E(e,n,i);if(!n?.reasoning)return f(e,o,{...t,thinking:{enabled:!1}});const r=A(e,n.reasoning),c=r==="off"?"high":r,u=e;return m(u)||w(u)||k(u)?f(e,o,{...t,thinking:{enabled:!0,level:K(c,u)}}):f(e,o,{...t,thinking:{enabled:!0,budgetTokens:U(u,c,n.thinkingBudgets)}})};function W(e,o,n){const i={};return e.baseUrl&&(i.baseUrl=e.baseUrl,i.apiVersion=""),(e.headers||n)&&(i.headers={...e.headers,...n}),new S({apiKey:o,httpOptions:Object.keys(i).length>0?i:void 0})}function B(e,o,n={}){const i=R(e,o),t={};n.temperature!==void 0&&(t.temperature=n.temperature),n.maxTokens!==void 0&&(t.maxOutputTokens=n.maxTokens);const r={...Object.keys(t).length>0&&t,...o.systemPrompt&&{systemInstruction:N(o.systemPrompt)},...o.tools&&o.tools.length>0&&{tools:L(o.tools)}};if(o.tools&&o.tools.length>0&&n.toolChoice?r.toolConfig={functionCallingConfig:{mode:_(n.toolChoice)}}:r.toolConfig=void 0,n.thinking?.enabled&&e.reasoning){const u={includeThoughts:!0};n.thinking.level!==void 0?u.thinkingLevel=n.thinking.level:n.thinking.budgetTokens!==void 0&&(u.thinkingBudget=n.thinking.budgetTokens),r.thinkingConfig=u}else e.reasoning&&n.thinking&&!n.thinking.enabled&&(r.thinkingConfig=H(e));if(n.signal){if(n.signal.aborted)throw new Error("Request aborted");r.abortSignal=n.signal}return{model:e.id,contents:i,config:r}}function k(e){return/gemma-?4/.test(e.id.toLowerCase())}function m(e){return/gemini-3(?:\.\d+)?-pro/.test(e.id.toLowerCase())}function w(e){return/gemini-3(?:\.\d+)?-flash/.test(e.id.toLowerCase())}function H(e){return m(e)?{thinkingLevel:"LOW"}:w(e)?{thinkingLevel:"MINIMAL"}:k(e)?{thinkingLevel:"MINIMAL"}:{thinkingBudget:0}}function K(e,o){if(m(o))switch(e){case"minimal":case"low":return"LOW";case"medium":case"high":return"HIGH"}if(k(o))switch(e){case"minimal":case"low":return"MINIMAL";case"medium":case"high":return"HIGH"}switch(e){case"minimal":return"MINIMAL";case"low":return"LOW";case"medium":return"MEDIUM";case"high":return"HIGH"}}function U(e,o,n){return n?.[o]!==void 0?n[o]:e.id.includes("2.5-pro")?{minimal:128,low:2048,medium:8192,high:32768}[o]:e.id.includes("2.5-flash-lite")?{minimal:512,low:2048,medium:8192,high:24576}[o]:e.id.includes("2.5-flash")?{minimal:128,low:2048,medium:8192,high:24576}[o]:-1}export{f as streamGoogle,F as streamSimpleGoogle};
+import{i as T,r as b,m as v,G as S,c as R,a as L,b as _}from"./google-shared-tMPbwRUC.js";import{A as G,g as x,c as O,a as A}from"./index-CB_zB4U3.js";import{s as N}from"./sanitize-unicode-B62XMGgN.js";import{b as E}from"./transform-messages-DSNYjDRn.js";let P=0;const f=(e,o,n)=>{const i=new G;return(async()=>{const t={role:"assistant",content:[],api:"google-generative-ai",provider:e.provider,model:e.id,usage:{input:0,output:0,cacheRead:0,cacheWrite:0,totalTokens:0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}},stopReason:"stop",timestamp:Date.now()};try{const r=n?.apiKey||x(e.provider)||"",c=W(e,r,n?.headers);let u=B(e,o,n);const y=await n?.onPayload?.(u,e);y!==void 0&&(u=y);const M=await c.models.generateContentStream(u);i.push({type:"start",partial:t});let a=null;const C=t.content,l=()=>C.length-1;for await(const g of M){t.responseId||=g.responseId;const d=g.candidates?.[0];if(d?.content?.parts)for(const s of d.content.parts){if(s.text!==void 0){const h=T(s);(!a||h&&a.type!=="thinking"||!h&&a.type!=="text")&&(a&&(a.type==="text"?i.push({type:"text_end",contentIndex:C.length-1,content:a.text,partial:t}):i.push({type:"thinking_end",contentIndex:l(),content:a.thinking,partial:t})),h?(a={type:"thinking",thinking:"",thinkingSignature:void 0},t.content.push(a),i.push({type:"thinking_start",contentIndex:l(),partial:t})):(a={type:"text",text:""},t.content.push(a),i.push({type:"text_start",contentIndex:l(),partial:t}))),a.type==="thinking"?(a.thinking+=s.text,a.thinkingSignature=b(a.thinkingSignature,s.thoughtSignature),i.push({type:"thinking_delta",contentIndex:l(),delta:s.text,partial:t})):(a.text+=s.text,a.textSignature=b(a.textSignature,s.thoughtSignature),i.push({type:"text_delta",contentIndex:l(),delta:s.text,partial:t}))}if(s.functionCall){a&&(a.type==="text"?i.push({type:"text_end",contentIndex:l(),content:a.text,partial:t}):i.push({type:"thinking_end",contentIndex:l(),content:a.thinking,partial:t}),a=null);const 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new Error("Request was aborted");if(t.stopReason==="aborted"||t.stopReason==="error")throw new Error("An unknown error occurred");i.push({type:"done",reason:t.stopReason,message:t}),i.end()}catch(r){for(const c of t.content)"index"in c&&delete c.index;t.stopReason=n?.signal?.aborted?"aborted":"error",t.errorMessage=r instanceof Error?r.message:JSON.stringify(r),i.push({type:"error",reason:t.stopReason,error:t}),i.end()}})(),i},F=(e,o,n)=>{const i=n?.apiKey||x(e.provider);if(!i)throw new Error(`No API key for provider: ${e.provider}`);const t=E(e,n,i);if(!n?.reasoning)return f(e,o,{...t,thinking:{enabled:!1}});const r=A(e,n.reasoning),c=r==="off"?"high":r,u=e;return m(u)||w(u)||k(u)?f(e,o,{...t,thinking:{enabled:!0,level:K(c,u)}}):f(e,o,{...t,thinking:{enabled:!0,budgetTokens:U(u,c,n.thinkingBudgets)}})};function W(e,o,n){const i={};return e.baseUrl&&(i.baseUrl=e.baseUrl,i.apiVersion=""),(e.headers||n)&&(i.headers={...e.headers,...n}),new S({apiKey:o,httpOptions:Object.keys(i).length>0?i:void 0})}function B(e,o,n={}){const i=R(e,o),t={};n.temperature!==void 0&&(t.temperature=n.temperature),n.maxTokens!==void 0&&(t.maxOutputTokens=n.maxTokens);const r={...Object.keys(t).length>0&&t,...o.systemPrompt&&{systemInstruction:N(o.systemPrompt)},...o.tools&&o.tools.length>0&&{tools:L(o.tools)}};if(o.tools&&o.tools.length>0&&n.toolChoice?r.toolConfig={functionCallingConfig:{mode:_(n.toolChoice)}}:r.toolConfig=void 0,n.thinking?.enabled&&e.reasoning){const u={includeThoughts:!0};n.thinking.level!==void 0?u.thinkingLevel=n.thinking.level:n.thinking.budgetTokens!==void 0&&(u.thinkingBudget=n.thinking.budgetTokens),r.thinkingConfig=u}else e.reasoning&&n.thinking&&!n.thinking.enabled&&(r.thinkingConfig=H(e));if(n.signal){if(n.signal.aborted)throw new Error("Request aborted");r.abortSignal=n.signal}return{model:e.id,contents:i,config:r}}function k(e){return/gemma-?4/.test(e.id.toLowerCase())}function m(e){return/gemini-3(?:\.\d+)?-pro/.test(e.id.toLowerCase())}function w(e){return/gemini-3(?:\.\d+)?-flash/.test(e.id.toLowerCase())}function H(e){return m(e)?{thinkingLevel:"LOW"}:w(e)?{thinkingLevel:"MINIMAL"}:k(e)?{thinkingLevel:"MINIMAL"}:{thinkingBudget:0}}function K(e,o){if(m(o))switch(e){case"minimal":case"low":return"LOW";case"medium":case"high":return"HIGH"}if(k(o))switch(e){case"minimal":case"low":return"MINIMAL";case"medium":case"high":return"HIGH"}switch(e){case"minimal":return"MINIMAL";case"low":return"LOW";case"medium":return"MEDIUM";case"high":return"HIGH"}}function U(e,o,n){return n?.[o]!==void 0?n[o]:e.id.includes("2.5-pro")?{minimal:128,low:2048,medium:8192,high:32768}[o]:e.id.includes("2.5-flash-lite")?{minimal:512,low:2048,medium:8192,high:24576}[o]:e.id.includes("2.5-flash")?{minimal:128,low:2048,medium:8192,high:24576}[o]:-1}export{f as streamGoogle,F as streamSimpleGoogle};

dist/assets/{google-vertex-YpwsH_3V.js → google-vertex-CxMnHyvQ.js}

@@ -1 +1 @@
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Set GOOGLE_CLOUD_PROJECT/GCLOUD_PROJECT or pass project in options.");return e}function z(t){const e=t?.location||f.GOOGLE_CLOUD_LOCATION;if(!e)throw new Error("Vertex AI requires a location. Set GOOGLE_CLOUD_LOCATION or pass location in options.");return e}function X(t,e,n={}){const a=R(t,e),i={};n.temperature!==void 0&&(i.temperature=n.temperature),n.maxTokens!==void 0&&(i.maxOutputTokens=n.maxTokens);const s={...Object.keys(i).length>0&&i,...e.systemPrompt&&{systemInstruction:U(e.systemPrompt)},...e.tools&&e.tools.length>0&&{tools:M(e.tools)}};if(e.tools&&e.tools.length>0&&n.toolChoice?s.toolConfig={functionCallingConfig:{mode:G(n.toolChoice)}}:s.toolConfig=void 0,n.thinking?.enabled&&t.reasoning){const g={includeThoughts:!0};n.thinking.level!==void 0?g.thinkingLevel=H[n.thinking.level]:n.thinking.budgetTokens!==void 0&&(g.thinkingBudget=n.thinking.budgetTokens),s.thinkingConfig=g}else t.reasoning&&n.thinking&&!n.thinking.enabled&&(s.thinkingConfig=Y(t));if(n.signal){if(n.signal.aborted)throw new Error("Request aborted");s.abortSignal=n.signal}return{model:t.id,contents:a,config:s}}function C(t){return/gemini-3(?:\.\d+)?-pro/.test(t.id.toLowerCase())}function b(t){return/gemini-3(?:\.\d+)?-flash/.test(t.id.toLowerCase())}function Y(t){const e=t;return C(e)?{thinkingLevel:d.LOW}:b(e)?{thinkingLevel:d.MINIMAL}:{thinkingBudget:0}}function Q(t,e){if(C(e))switch(t){case"minimal":case"low":return"LOW";case"medium":case"high":return"HIGH"}switch(t){case"minimal":return"MINIMAL";case"low":return"LOW";case"medium":return"MEDIUM";case"high":return"HIGH"}}function Z(t,e,n){return n?.[e]!==void 0?n[e]:t.id.includes("2.5-pro")?{minimal:128,low:2048,medium:8192,high:32768}[e]:t.id.includes("2.5-flash")?{minimal:128,low:2048,medium:8192,high:24576}[e]:-1}export{k as streamGoogleVertex,rt as streamSimpleGoogleVertex};
+import{i as T,r as x,m as w,G as L,c as R,a as M,b as G,T as d,R as S}from"./google-shared-tMPbwRUC.js";import{A,c as N,a as P}from"./index-CB_zB4U3.js";import{s as U}from"./sanitize-unicode-B62XMGgN.js";import{b as D}from"./transform-messages-DSNYjDRn.js";var f={};const v="v1",V="gcp-vertex-credentials",H={THINKING_LEVEL_UNSPECIFIED:d.THINKING_LEVEL_UNSPECIFIED,MINIMAL:d.MINIMAL,LOW:d.LOW,MEDIUM:d.MEDIUM,HIGH:d.HIGH};let K=0;const k=(t,e,n)=>{const a=new A;return(async()=>{const i={role:"assistant",content:[],api:"google-vertex",provider:t.provider,model:t.id,usage:{input:0,output:0,cacheRead:0,cacheWrite:0,totalTokens:0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}},stopReason:"stop",timestamp:Date.now()};try{const s=$(n),l=s?j(t,s,n?.headers):W(t,F(n),z(n),n?.headers);let g=X(t,e,n);const I=await n?.onPayload?.(g,t);I!==void 0&&(g=I);const E=await l.models.generateContentStream(g);a.push({type:"start",partial:i});let o=null;const y=i.content,c=()=>y.length-1;for await(const u of E){i.responseId||=u.responseId;const p=u.candidates?.[0];if(p?.content?.parts)for(const r of p.content.parts){if(r.text!==void 0){const h=T(r);(!o||h&&o.type!=="thinking"||!h&&o.type!=="text")&&(o&&(o.type==="text"?a.push({type:"text_end",contentIndex:y.length-1,content:o.text,partial:i}):a.push({type:"thinking_end",contentIndex:c(),content:o.thinking,partial:i})),h?(o={type:"thinking",thinking:"",thinkingSignature:void 0},i.content.push(o),a.push({type:"thinking_start",contentIndex:c(),partial:i})):(o={type:"text",text:""},i.content.push(o),a.push({type:"text_start",contentIndex:c(),partial:i}))),o.type==="thinking"?(o.thinking+=r.text,o.thinkingSignature=x(o.thinkingSignature,r.thoughtSignature),a.push({type:"thinking_delta",contentIndex:c(),delta:r.text,partial:i})):(o.text+=r.text,o.textSignature=x(o.textSignature,r.thoughtSignature),a.push({type:"text_delta",contentIndex:c(),delta:r.text,partial:i}))}if(r.functionCall){o&&(o.type==="text"?a.push({type:"text_end",contentIndex:c(),content:o.text,partial:i}):a.push({type:"thinking_end",contentIndex:c(),content:o.thinking,partial:i}),o=null);const h=r.functionCall.id,m={type:"toolCall",id:!h||i.content.some(O=>O.type==="toolCall"&&O.id===h)?`${r.functionCall.name}_${Date.now()}_${++K}`:h,name:r.functionCall.name||"",arguments:r.functionCall.args??{},...r.thoughtSignature&&{thoughtSignature:r.thoughtSignature}};i.content.push(m),a.push({type:"toolcall_start",contentIndex:c(),partial:i}),a.push({type:"toolcall_delta",contentIndex:c(),delta:JSON.stringify(m.arguments),partial:i}),a.push({type:"toolcall_end",contentIndex:c(),toolCall:m,partial:i})}}p?.finishReason&&(i.stopReason=w(p.finishReason),i.content.some(r=>r.type==="toolCall")&&(i.stopReason="toolUse")),u.usageMetadata&&(i.usage={input:(u.usageMetadata.promptTokenCount||0)-(u.usageMetadata.cachedContentTokenCount||0),output:(u.usageMetadata.candidatesTokenCount||0)+(u.usageMetadata.thoughtsTokenCount||0),cacheRead:u.usageMetadata.cachedContentTokenCount||0,cacheWrite:0,totalTokens:u.usageMetadata.totalTokenCount||0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}},N(t,i.usage))}if(o&&(o.type==="text"?a.push({type:"text_end",contentIndex:c(),content:o.text,partial:i}):a.push({type:"thinking_end",contentIndex:c(),content:o.thinking,partial:i})),n?.signal?.aborted)throw new Error("Request was aborted");if(i.stopReason==="aborted"||i.stopReason==="error")throw new Error("An unknown error occurred");a.push({type:"done",reason:i.stopReason,message:i}),a.end()}catch(s){for(const l of i.content)"index"in l&&delete l.index;i.stopReason=n?.signal?.aborted?"aborted":"error",i.errorMessage=s instanceof Error?s.message:JSON.stringify(s),a.push({type:"error",reason:i.stopReason,error:i}),a.end()}})(),a},rt=(t,e,n)=>{const a=D(t,n,void 0);if(!n?.reasoning)return k(t,e,{...a,thinking:{enabled:!1}});const i=P(t,n.reasoning),s=i==="off"?"high":i,l=t;return C(l)||b(l)?k(t,e,{...a,thinking:{enabled:!0,level:Q(s,l)}}):k(t,e,{...a,thinking:{enabled:!0,budgetTokens:Z(l,s,n.thinkingBudgets)}})};function W(t,e,n,a){return new L({vertexai:!0,project:e,location:n,apiVersion:v,httpOptions:_(t,a)})}function j(t,e,n){return new L({vertexai:!0,apiKey:e,apiVersion:v,httpOptions:_(t,n)})}function _(t,e){const n={},a=B(t.baseUrl);return a&&(n.baseUrl=a,n.baseUrlResourceScope=S.COLLECTION,J(a)&&(n.apiVersion="")),(t.headers||e)&&(n.headers={...t.headers,...e}),Object.keys(n).length>0?n:void 0}function B(t){const e=t.trim();if(!(!e||e.includes("{location}")))return e}function J(t){try{return new URL(t).pathname.split("/").some(n=>/^v\d+(?:beta\d*)?$/.test(n))}catch{return/(?:^|\/)v\d+(?:beta\d*)?(?:\/|$)/.test(t)}}function $(t){const e=t?.apiKey?.trim()||f.GOOGLE_CLOUD_API_KEY?.trim();if(!(!e||e===V||q(e)))return e}function q(t){return/^<[^>]+>$/.test(t)}function F(t){const e=t?.project||f.GOOGLE_CLOUD_PROJECT||f.GCLOUD_PROJECT;if(!e)throw new Error("Vertex AI requires a project ID. Set GOOGLE_CLOUD_PROJECT/GCLOUD_PROJECT or pass project in options.");return e}function z(t){const e=t?.location||f.GOOGLE_CLOUD_LOCATION;if(!e)throw new Error("Vertex AI requires a location. Set GOOGLE_CLOUD_LOCATION or pass location in options.");return e}function X(t,e,n={}){const a=R(t,e),i={};n.temperature!==void 0&&(i.temperature=n.temperature),n.maxTokens!==void 0&&(i.maxOutputTokens=n.maxTokens);const s={...Object.keys(i).length>0&&i,...e.systemPrompt&&{systemInstruction:U(e.systemPrompt)},...e.tools&&e.tools.length>0&&{tools:M(e.tools)}};if(e.tools&&e.tools.length>0&&n.toolChoice?s.toolConfig={functionCallingConfig:{mode:G(n.toolChoice)}}:s.toolConfig=void 0,n.thinking?.enabled&&t.reasoning){const g={includeThoughts:!0};n.thinking.level!==void 0?g.thinkingLevel=H[n.thinking.level]:n.thinking.budgetTokens!==void 0&&(g.thinkingBudget=n.thinking.budgetTokens),s.thinkingConfig=g}else t.reasoning&&n.thinking&&!n.thinking.enabled&&(s.thinkingConfig=Y(t));if(n.signal){if(n.signal.aborted)throw new Error("Request aborted");s.abortSignal=n.signal}return{model:t.id,contents:a,config:s}}function C(t){return/gemini-3(?:\.\d+)?-pro/.test(t.id.toLowerCase())}function b(t){return/gemini-3(?:\.\d+)?-flash/.test(t.id.toLowerCase())}function Y(t){const e=t;return C(e)?{thinkingLevel:d.LOW}:b(e)?{thinkingLevel:d.MINIMAL}:{thinkingBudget:0}}function Q(t,e){if(C(e))switch(t){case"minimal":case"low":return"LOW";case"medium":case"high":return"HIGH"}switch(t){case"minimal":return"MINIMAL";case"low":return"LOW";case"medium":return"MEDIUM";case"high":return"HIGH"}}function Z(t,e,n){return n?.[e]!==void 0?n[e]:t.id.includes("2.5-pro")?{minimal:128,low:2048,medium:8192,high:32768}[e]:t.id.includes("2.5-flash")?{minimal:128,low:2048,medium:8192,high:24576}[e]:-1}export{k as streamGoogleVertex,rt as streamSimpleGoogleVertex};

dist/assets/index-4NYd9uAS.css

@@ -1 +0,0 @@
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dist/assets/index-NRwwiW4N.css

@@ -0,0 +1 @@
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dist/assets/{json-parse-B9Wfu_bW.js → json-parse-cUk3uCki.js}

@@ -1,2 +1,2 @@
-import{d as o}from"./index-CgfZNSZZ.js";const a=new Set(['"',"\\","/","b","f","n","r","t","u"]);function f(t){const r=t.codePointAt(0);return r!==void 0&&r>=0&&r<=31}function d(t){switch(t){case"\b":return"\\b";case"\f":return"\\f";case`
+import{d as o}from"./index-CB_zB4U3.js";const a=new Set(['"',"\\","/","b","f","n","r","t","u"]);function f(t){const r=t.codePointAt(0);return r!==void 0&&r>=0&&r<=31}function d(t){switch(t){case"\b":return"\\b";case"\f":return"\\f";case`
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dist/assets/{mistral-D2dGPAye.js → mistral-mDLdw-bF.js}

@@ -1,4 +1,4 @@
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dist/assets/{openai-completions-ChsgufLt.js → openai-completions-CTz74GS-.js}

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+`),T=k.content.some(l=>l.type==="image"),_=R.length>0,v={role:"tool",content:C(_?R:"(see attached image)"),tool_call_id:k.toolCallId};if(t.requiresToolResultName&&k.toolName&&(v.name=k.toolName),s.push(v),T&&e.input.includes("image"))for(const l of k.content)re(l)&&p.push({type:"image_url",image_url:{url:`data:${l.mimeType};base64,${l.data}`}})}o=h-1,p.length>0?(t.requiresAssistantAfterToolResult&&s.push({role:"assistant",content:"I have processed the tool results."}),s.push({role:"user",content:[{type:"text",text:"Attached image(s) from tool result:"},...p]}),u="user"):u="toolResult";continue}u=i.role}return s}function ke(e,n){return e.map(t=>({type:"function",function:{name:t.name,description:t.description,parameters:t.parameters,...n.supportsStrictMode!==!1&&{strict:!1}}}))}function B(e,n){const t=e.prompt_tokens||0,s=e.prompt_tokens_details?.cached_tokens??e.prompt_cache_hit_tokens??0,r=e.prompt_tokens_details?.cache_write_tokens||0,c=Math.max(0,t-s-r),u=e.completion_tokens||0,o={input:c,output:u,cacheRead:s,cacheWrite:r,totalTokens:c+u+s+r,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}};return K(n,o),o}function ye(e){if(e===null)return{stopReason:"stop"};switch(e){case"stop":case"end":return{stopReason:"stop"};case"length":return{stopReason:"length"};case"function_call":case"tool_calls":return{stopReason:"toolUse"};case"content_filter":return{stopReason:"error",errorMessage:"Provider finish_reason: content_filter"};case"network_error":return{stopReason:"error",errorMessage:"Provider finish_reason: network_error"};default:return{stopReason:"error",errorMessage:`Provider finish_reason: ${e}`}}}function Re(e){const n=e.provider,t=e.baseUrl,s=n==="zai"||t.includes("api.z.ai"),r=n==="together"||t.includes("api.together.ai")||t.includes("api.together.xyz"),c=n==="moonshotai"||n==="moonshotai-cn"||t.includes("api.moonshot."),u=n==="cloudflare-workers-ai"||t.includes("api.cloudflare.com"),o=n==="cloudflare-ai-gateway"||t.includes("gateway.ai.cloudflare.com"),i=n==="cerebras"||t.includes("cerebras.ai")||n==="xai"||t.includes("api.x.ai")||r||t.includes("chutes.ai")||t.includes("deepseek.com")||s||c||n==="opencode"||t.includes("opencode.ai")||u||o,p=t.includes("chutes.ai")||c||o||r,h=n==="xai"||t.includes("api.x.ai"),k=n==="deepseek"||t.includes("deepseek.com"),R=n==="openrouter"&&e.id.startsWith("anthropic/")?"anthropic":void 0;return{supportsStore:!i,supportsDeveloperRole:!i,supportsReasoningEffort:!h&&!s&&!c&&!r&&!o,supportsUsageInStreaming:!0,maxTokensField:p?"max_tokens":"max_completion_tokens",requiresToolResultName:!1,requiresAssistantAfterToolResult:!1,requiresThinkingAsText:!1,requiresReasoningContentOnAssistantMessages:k,thinkingFormat:k?"deepseek":s?"zai":r?"together":n==="openrouter"||t.includes("openrouter.ai")?"openrouter":"openai",openRouterRouting:{},vercelGatewayRouting:{},zaiToolStream:!1,supportsStrictMode:!c&&!r&&!o,cacheControlFormat:R,sendSessionAffinityHeaders:!1,supportsLongCacheRetention:!(r||u||o)}}function q(e){const n=Re(e);return e.compat?{supportsStore:e.compat.supportsStore??n.supportsStore,supportsDeveloperRole:e.compat.supportsDeveloperRole??n.supportsDeveloperRole,supportsReasoningEffort:e.compat.supportsReasoningEffort??n.supportsReasoningEffort,supportsUsageInStreaming:e.compat.supportsUsageInStreaming??n.supportsUsageInStreaming,maxTokensField:e.compat.maxTokensField??n.maxTokensField,requiresToolResultName:e.compat.requiresToolResultName??n.requiresToolResultName,requiresAssistantAfterToolResult:e.compat.requiresAssistantAfterToolResult??n.requiresAssistantAfterToolResult,requiresThinkingAsText:e.compat.requiresThinkingAsText??n.requiresThinkingAsText,requiresReasoningContentOnAssistantMessages:e.compat.requiresReasoningContentOnAssistantMessages??n.requiresReasoningContentOnAssistantMessages,thinkingFormat:e.compat.thinkingFormat??n.thinkingFormat,openRouterRouting:e.compat.openRouterRouting??{},vercelGatewayRouting:e.compat.vercelGatewayRouting??n.vercelGatewayRouting,zaiToolStream:e.compat.zaiToolStream??n.zaiToolStream,supportsStrictMode:e.compat.supportsStrictMode??n.supportsStrictMode,cacheControlFormat:e.compat.cacheControlFormat??n.cacheControlFormat,sendSessionAffinityHeaders:e.compat.sendSessionAffinityHeaders??n.sendSessionAffinityHeaders,supportsLongCacheRetention:e.compat.supportsLongCacheRetention??n.supportsLongCacheRetention}:n}export{me as convertMessages,ie as streamOpenAICompletions,Ie as streamSimpleOpenAICompletions};

dist/assets/{openai-responses-wXWgXVPI.js → openai-responses-CW5o7IM-.js}

@@ -1 +1 @@
-import{O as A}from"./client-Sq9UPDIz.js";import{A as I,g as h,a as E}from"./index-CgfZNSZZ.js";import{h as w}from"./headers-CgnjaPPL.js";import{h as _,b as O,i as b,r as P}from"./github-copilot-headers-CVWOSrQr.js";import{c as S}from"./openai-prompt-cache-h_V5PL7P.js";import{p as C,c as T,a as k}from"./openai-responses-shared-HtwCtL3B.js";import{b as L}from"./transform-messages-Bxe2XUr4.js";import"./hash-DMDecQcg.js";import"./json-parse-B9Wfu_bW.js";import"./sanitize-unicode-B62XMGgN.js";var u={};const M=new Set(["openai","openai-codex","opencode"]);function g(e){return e||(typeof process<"u"&&u.PI_CACHE_RETENTION==="long"?"long":"short")}function m(e){return{sendSessionIdHeader:e.compat?.sendSessionIdHeader??!0,supportsLongCacheRetention:e.compat?.supportsLongCacheRetention??!0}}function N(e,t){return t==="long"&&e.supportsLongCacheRetention?"24h":void 0}function x(e){if(e instanceof Error){const t=e.status,r=typeof t=="number"?t:void 0;return r!==void 0?`OpenAI API error (${r}): ${e.message}`:e.message}try{return JSON.stringify(e)}catch{return String(e)}}const H=(e,t,r)=>{const s=new I;return(async()=>{const a={role:"assistant",content:[],api:e.api,provider:e.provider,model:e.id,usage:{input:0,output:0,cacheRead:0,cacheWrite:0,totalTokens:0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}},stopReason:"stop",timestamp:Date.now()};try{const o=r?.apiKey||h(e.provider)||"",i=g(r?.cacheRetention)==="none"?void 0:r?.sessionId,p=K(e,t,o,r?.headers,i);let c=q(e,t,r);const f=await r?.onPayload?.(c,e);f!==void 0&&(c=f);const l={...r?.signal?{signal:r.signal}:{},...r?.timeoutMs!==void 0?{timeout:r.timeoutMs}:{},...r?.maxRetries!==void 0?{maxRetries:r.maxRetries}:{}},{data:v,response:d}=await p.responses.create(c,l).withResponse();if(await r?.onResponse?.({status:d.status,headers:w(d.headers)},e),s.push({type:"start",partial:a}),await C(v,a,s,e,{serviceTier:r?.serviceTier,applyServiceTierPricing:(R,y)=>W(R,y,e)}),r?.signal?.aborted)throw new Error("Request was aborted");if(a.stopReason==="aborted"||a.stopReason==="error")throw new Error("An unknown error occurred");s.push({type:"done",reason:a.stopReason,message:a}),s.end()}catch(o){for(const n of a.content)delete n.index,delete n.partialJson;a.stopReason=r?.signal?.aborted?"aborted":"error",a.errorMessage=x(o),s.push({type:"error",reason:a.stopReason,error:a}),s.end()}})(),s},Q=(e,t,r)=>{const s=r?.apiKey||h(e.provider);if(!s)throw new Error(`No API key for provider: ${e.provider}`);const a=L(e,r,s),o=r?.reasoning?E(e,r.reasoning):void 0;return H(e,t,{...a,reasoningEffort:o==="off"?void 0:o})};function K(e,t,r,s,a){if(!r){if(!u.OPENAI_API_KEY)throw new Error("OpenAI API key is required. Set OPENAI_API_KEY environment variable or pass it as an argument.");r=u.OPENAI_API_KEY}const o=m(e),n={...e.headers};if(e.provider==="github-copilot"){const p=_(t.messages),c=O({messages:t.messages,hasImages:p});Object.assign(n,c)}a&&(o.sendSessionIdHeader&&(n.session_id=a),n["x-client-request-id"]=a),s&&Object.assign(n,s);const i=e.provider==="cloudflare-ai-gateway"?{...n,Authorization:n.Authorization??null,"cf-aig-authorization":`Bearer ${r}`}:n;return new A({apiKey:r,baseURL:b(e.provider)?P(e):e.baseUrl,dangerouslyAllowBrowser:!0,defaultHeaders:i})}function q(e,t,r){const s=T(e,t,M),a=g(r?.cacheRetention),o=m(e),n={model:e.id,input:s,stream:!0,prompt_cache_key:a==="none"?void 0:S(r?.sessionId),prompt_cache_retention:N(o,a),store:!1};if(r?.maxTokens&&(n.max_output_tokens=r?.maxTokens),r?.temperature!==void 0&&(n.temperature=r?.temperature),r?.serviceTier!==void 0&&(n.service_tier=r.serviceTier),t.tools&&t.tools.length>0&&(n.tools=k(t.tools)),e.reasoning)if(r?.reasoningEffort||r?.reasoningSummary){const i=r?.reasoningEffort?e.thinkingLevelMap?.[r.reasoningEffort]??r.reasoningEffort:"medium";n.reasoning={effort:i,summary:r?.reasoningSummary||"auto"},n.include=["reasoning.encrypted_content"]}else e.provider!=="github-copilot"&&e.thinkingLevelMap?.off!==null&&(n.reasoning={effort:e.thinkingLevelMap?.off??"none"});return n}function B(e,t){switch(t){case"flex":return .5;case"priority":return e.id==="gpt-5.5"?2.5:2;default:return 1}}function W(e,t,r){const s=B(r,t);s!==1&&(e.cost.input*=s,e.cost.output*=s,e.cost.cacheRead*=s,e.cost.cacheWrite*=s,e.cost.total=e.cost.input+e.cost.output+e.cost.cacheRead+e.cost.cacheWrite)}export{H as streamOpenAIResponses,Q as streamSimpleOpenAIResponses};
+import{O as A}from"./client-Sq9UPDIz.js";import{A as I,g as h,a as E}from"./index-CB_zB4U3.js";import{h as w}from"./headers-CgnjaPPL.js";import{h as _,b as O,i as b,r as P}from"./github-copilot-headers-CVWOSrQr.js";import{c as S}from"./openai-prompt-cache-h_V5PL7P.js";import{p as C,c as T,a as k}from"./openai-responses-shared-DBUlz2NN.js";import{b as L}from"./transform-messages-DSNYjDRn.js";import"./hash-DMDecQcg.js";import"./json-parse-cUk3uCki.js";import"./sanitize-unicode-B62XMGgN.js";var u={};const M=new Set(["openai","openai-codex","opencode"]);function g(e){return e||(typeof process<"u"&&u.PI_CACHE_RETENTION==="long"?"long":"short")}function m(e){return{sendSessionIdHeader:e.compat?.sendSessionIdHeader??!0,supportsLongCacheRetention:e.compat?.supportsLongCacheRetention??!0}}function N(e,t){return t==="long"&&e.supportsLongCacheRetention?"24h":void 0}function x(e){if(e instanceof Error){const t=e.status,r=typeof t=="number"?t:void 0;return r!==void 0?`OpenAI API error (${r}): ${e.message}`:e.message}try{return JSON.stringify(e)}catch{return String(e)}}const H=(e,t,r)=>{const s=new I;return(async()=>{const a={role:"assistant",content:[],api:e.api,provider:e.provider,model:e.id,usage:{input:0,output:0,cacheRead:0,cacheWrite:0,totalTokens:0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}},stopReason:"stop",timestamp:Date.now()};try{const o=r?.apiKey||h(e.provider)||"",i=g(r?.cacheRetention)==="none"?void 0:r?.sessionId,p=K(e,t,o,r?.headers,i);let c=q(e,t,r);const f=await r?.onPayload?.(c,e);f!==void 0&&(c=f);const l={...r?.signal?{signal:r.signal}:{},...r?.timeoutMs!==void 0?{timeout:r.timeoutMs}:{},maxRetries:r?.maxRetries??0},{data:v,response:d}=await p.responses.create(c,l).withResponse();if(await r?.onResponse?.({status:d.status,headers:w(d.headers)},e),s.push({type:"start",partial:a}),await C(v,a,s,e,{serviceTier:r?.serviceTier,applyServiceTierPricing:(R,y)=>W(R,y,e)}),r?.signal?.aborted)throw new Error("Request was aborted");if(a.stopReason==="aborted"||a.stopReason==="error")throw new Error("An unknown error occurred");s.push({type:"done",reason:a.stopReason,message:a}),s.end()}catch(o){for(const n of a.content)delete n.index,delete n.partialJson;a.stopReason=r?.signal?.aborted?"aborted":"error",a.errorMessage=x(o),s.push({type:"error",reason:a.stopReason,error:a}),s.end()}})(),s},Q=(e,t,r)=>{const s=r?.apiKey||h(e.provider);if(!s)throw new Error(`No API key for provider: ${e.provider}`);const a=L(e,r,s),o=r?.reasoning?E(e,r.reasoning):void 0;return H(e,t,{...a,reasoningEffort:o==="off"?void 0:o})};function K(e,t,r,s,a){if(!r){if(!u.OPENAI_API_KEY)throw new Error("OpenAI API key is required. Set OPENAI_API_KEY environment variable or pass it as an argument.");r=u.OPENAI_API_KEY}const o=m(e),n={...e.headers};if(e.provider==="github-copilot"){const p=_(t.messages),c=O({messages:t.messages,hasImages:p});Object.assign(n,c)}a&&(o.sendSessionIdHeader&&(n.session_id=a),n["x-client-request-id"]=a),s&&Object.assign(n,s);const i=e.provider==="cloudflare-ai-gateway"?{...n,Authorization:n.Authorization??null,"cf-aig-authorization":`Bearer ${r}`}:n;return new A({apiKey:r,baseURL:b(e.provider)?P(e):e.baseUrl,dangerouslyAllowBrowser:!0,defaultHeaders:i})}function q(e,t,r){const s=T(e,t,M),a=g(r?.cacheRetention),o=m(e),n={model:e.id,input:s,stream:!0,prompt_cache_key:a==="none"?void 0:S(r?.sessionId),prompt_cache_retention:N(o,a),store:!1};if(r?.maxTokens&&(n.max_output_tokens=r?.maxTokens),r?.temperature!==void 0&&(n.temperature=r?.temperature),r?.serviceTier!==void 0&&(n.service_tier=r.serviceTier),t.tools&&t.tools.length>0&&(n.tools=k(t.tools)),e.reasoning)if(r?.reasoningEffort||r?.reasoningSummary){const i=r?.reasoningEffort?e.thinkingLevelMap?.[r.reasoningEffort]??r.reasoningEffort:"medium";n.reasoning={effort:i,summary:r?.reasoningSummary||"auto"},n.include=["reasoning.encrypted_content"]}else e.provider!=="github-copilot"&&e.thinkingLevelMap?.off!==null&&(n.reasoning={effort:e.thinkingLevelMap?.off??"none"});return n}function B(e,t){switch(t){case"flex":return .5;case"priority":return e.id==="gpt-5.5"?2.5:2;default:return 1}}function W(e,t,r){const s=B(r,t);s!==1&&(e.cost.input*=s,e.cost.output*=s,e.cost.cacheRead*=s,e.cost.cacheWrite*=s,e.cost.total=e.cost.input+e.cost.output+e.cost.cacheRead+e.cost.cacheWrite)}export{H as streamOpenAIResponses,Q as streamSimpleOpenAIResponses};

dist/assets/{openai-responses-shared-HtwCtL3B.js → openai-responses-shared-DBUlz2NN.js}

@@ -1,12 +1,12 @@
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-`)||"",o=e.content?.map(p=>p.text).join(`
+`)||"",o=e.content?.map(c=>c.text).join(`
 
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+`)||"";n.thinking=s||o||n.thinking,n.thinkingSignature=JSON.stringify(e),l.push({type:"thinking_end",contentIndex:d(),content:n.thinking,partial:t}),n=null}else if(e.type==="message"&&n?.type==="text")n.text=e.content.map(s=>s.type==="output_text"?s.text:s.refusal).join(""),n.textSignature=C(e.id,e.phase??void 0),l.push({type:"text_end",contentIndex:d(),content:n.text,partial:t}),n=null;else if(e.type==="function_call"){const s=n?.type==="toolCall"&&n.partialJson?k(n.partialJson):k(e.arguments||"{}");let o;n?.type==="toolCall"?(n.arguments=s,delete n.partialJson,o=n):o={type:"toolCall",id:`${e.call_id}|${e.id}`,name:e.name,arguments:s},n=null,l.push({type:"toolcall_end",contentIndex:d(),toolCall:o,partial:t})}}else if(a.type==="response.completed"){const e=a.response;if(e?.id&&(t.responseId=e.id),e?.usage){const s=e.usage.input_tokens_details?.cached_tokens||0;t.usage={input:(e.usage.input_tokens||0)-s,output:e.usage.output_tokens||0,cacheRead:s,cacheWrite:0,totalTokens:e.usage.total_tokens||0,cost:{input:0,output:0,cacheRead:0,cacheWrite:0,total:0}}}if($(h,t.usage),u?.applyServiceTierPricing){const s=u.resolveServiceTier?u.resolveServiceTier(e?.service_tier,u.serviceTier):e?.service_tier??u.serviceTier;u.applyServiceTierPricing(t.usage,s)}t.stopReason=P(e?.status),t.content.some(s=>s.type==="toolCall")&&t.stopReason==="stop"&&(t.stopReason="toolUse")}else{if(a.type==="error")throw new Error(`Error Code ${a.code}: ${a.message}`||"Unknown error");if(a.type==="response.failed"){const e=a.response?.error,s=a.response?.incomplete_details,o=e?`${e.code||"unknown"}: ${e.message||"no message"}`:s?.reason?`incomplete: ${s.reason}`:"Unknown error (no error details in response)";throw new Error(o)}}}function P(r){if(!r)return"stop";switch(r){case"completed":return"stop";case"incomplete":return"length";case"failed":case"cancelled":return"error";case"in_progress":case"queued":return"stop";default:{const t=r;throw new Error(`Unhandled stop reason: ${t}`)}}}export{N as a,W as c,O as p};

dist/assets/openrouter-CMw3KGq6.js

@@ -1 +0,0 @@
-import{O as y}from"./client-Sq9UPDIz.js";import{g as R}from"./index-CgfZNSZZ.js";import{h as x}from"./headers-CgnjaPPL.js";import{s as _}from"./sanitize-unicode-B62XMGgN.js";const O=async(e,r,t)=>{const a={api:e.api,provider:e.provider,model:e.id,output:[],stopReason:"stop",timestamp:Date.now()};try{const s=t?.apiKey||R(e.provider);if(!s)throw new Error(`No API key available for provider: ${e.provider}`);const c=k(e,s,t?.headers);let n=w(e,r);const i=await t?.onPayload?.(n,e);i!==void 0&&(n=i);const o={...t?.signal?{signal:t.signal}:{},...t?.timeoutMs!==void 0?{timeout:t.timeoutMs}:{},...t?.maxRetries!==void 0?{maxRetries:t.maxRetries}:{}},{data:l,response:h}=await c.chat.completions.create(n,o).withResponse();await t?.onResponse?.({status:h.status,headers:x(h.headers)},e);const u=l;a.responseId=u.id,u.usage&&(a.usage=b(u.usage,e));const p=u.choices[0];if(p){const m=p.message.content;typeof m=="string"&&m.length>0&&a.output.push({type:"text",text:m});for(const d of p.message.images??[]){const f=typeof d.image_url=="string"?d.image_url:d.image_url?.url;if(!f?.startsWith("data:"))continue;const g=f.match(/^data:([^;]+);base64,(.+)$/);g&&a.output.push({type:"image",mimeType:g[1],data:g[2]})}}return a}catch(s){return a.stopReason=t?.signal?.aborted?"aborted":"error",a.errorMessage=s instanceof Error?s.message:JSON.stringify(s),a}};function k(e,r,t){return new y({apiKey:r,baseURL:e.baseUrl,dangerouslyAllowBrowser:!0,defaultHeaders:{...e.headers,...t}})}function w(e,r){const t=r.input.map(a=>a.type==="text"?{type:"text",text:_(a.text)}:{type:"image_url",image_url:{url:`data:${a.mimeType};base64,${a.data}`}});return{model:e.id,messages:[{role:"user",content:t}],stream:!1,modalities:e.output.includes("text")?["image","text"]:["image"]}}function b(e,r){const t=e.prompt_tokens||0,a=e.prompt_tokens_details?.cached_tokens||0,s=e.prompt_tokens_details?.cache_write_tokens||0,c=s>0?Math.max(0,a-s):a,n=Math.max(0,t-c-s),i=e.completion_tokens||0,o={input:n,output:i,cacheRead:c,cacheWrite:s,totalTokens:n+i+c+s,cost:{input:r.cost.input/1e6*n,output:r.cost.output/1e6*i,cacheRead:r.cost.cacheRead/1e6*c,cacheWrite:r.cost.cacheWrite/1e6*s,total:0}};return o.cost.total=o.cost.input+o.cost.output+o.cost.cacheRead+o.cost.cacheWrite,o}export{O as generateImagesOpenRouter};

dist/assets/openrouter-DE7amXV2.js

@@ -0,0 +1 @@
+import{O as y}from"./client-Sq9UPDIz.js";import{g as R}from"./index-CB_zB4U3.js";import{h as x}from"./headers-CgnjaPPL.js";import{s as _}from"./sanitize-unicode-B62XMGgN.js";const O=async(e,r,t)=>{const a={api:e.api,provider:e.provider,model:e.id,output:[],stopReason:"stop",timestamp:Date.now()};try{const s=t?.apiKey||R(e.provider);if(!s)throw new Error(`No API key available for provider: ${e.provider}`);const c=k(e,s,t?.headers);let n=w(e,r);const i=await t?.onPayload?.(n,e);i!==void 0&&(n=i);const o={...t?.signal?{signal:t.signal}:{},...t?.timeoutMs!==void 0?{timeout:t.timeoutMs}:{},maxRetries:t?.maxRetries??0},{data:l,response:d}=await c.chat.completions.create(n,o).withResponse();await t?.onResponse?.({status:d.status,headers:x(d.headers)},e);const u=l;a.responseId=u.id,u.usage&&(a.usage=b(u.usage,e));const p=u.choices[0];if(p){const m=p.message.content;typeof m=="string"&&m.length>0&&a.output.push({type:"text",text:m});for(const g of p.message.images??[]){const f=typeof g.image_url=="string"?g.image_url:g.image_url?.url;if(!f?.startsWith("data:"))continue;const h=f.match(/^data:([^;]+);base64,(.+)$/);h&&a.output.push({type:"image",mimeType:h[1],data:h[2]})}}return a}catch(s){return a.stopReason=t?.signal?.aborted?"aborted":"error",a.errorMessage=s instanceof Error?s.message:JSON.stringify(s),a}};function k(e,r,t){return new y({apiKey:r,baseURL:e.baseUrl,dangerouslyAllowBrowser:!0,defaultHeaders:{...e.headers,...t}})}function w(e,r){const t=r.input.map(a=>a.type==="text"?{type:"text",text:_(a.text)}:{type:"image_url",image_url:{url:`data:${a.mimeType};base64,${a.data}`}});return{model:e.id,messages:[{role:"user",content:t}],stream:!1,modalities:e.output.includes("text")?["image","text"]:["image"]}}function b(e,r){const t=e.prompt_tokens||0,a=e.prompt_tokens_details?.cached_tokens||0,s=e.prompt_tokens_details?.cache_write_tokens||0,c=s>0?Math.max(0,a-s):a,n=Math.max(0,t-c-s),i=e.completion_tokens||0,o={input:n,output:i,cacheRead:c,cacheWrite:s,totalTokens:n+i+c+s,cost:{input:r.cost.input/1e6*n,output:r.cost.output/1e6*i,cacheRead:r.cost.cacheRead/1e6*c,cacheWrite:r.cost.cacheWrite/1e6*s,total:0}};return o.cost.total=o.cost.input+o.cost.output+o.cost.cacheRead+o.cost.cacheWrite,o}export{O as generateImagesOpenRouter};

dist/assets/transform-messages-Bxe2XUr4.js

@@ -1 +0,0 @@
-function S(o,t,n){return{temperature:t?.temperature,maxTokens:t?.maxTokens,signal:t?.signal,apiKey:n||t?.apiKey,transport:t?.transport,cacheRetention:t?.cacheRetention,sessionId:t?.sessionId,headers:t?.headers,onPayload:t?.onPayload,onResponse:t?.onResponse,timeoutMs:t?.timeoutMs,maxRetries:t?.maxRetries,maxRetryDelayMs:t?.maxRetryDelayMs,metadata:t?.metadata}}function R(o){return o==="xhigh"?"high":o}function O(o,t,n,l){const m={...{minimal:1024,low:2048,medium:8192,high:16384},...l},u=1024,f=R(n);let s=m[f];const d=o===void 0?t:Math.min(o+s,t);return d<=s&&(s=Math.max(0,d-u)),{maxTokens:d,thinkingBudget:s}}const I="(image omitted: model does not support images)",M="(tool image omitted: model does not support images)";function y(o,t){const n=[];let l=!1;for(const h of o){if(h.type==="image"){l||n.push({type:"text",text:t}),l=!0;continue}n.push(h),l=h.text===t}return n}function C(o,t){return t.input.includes("image")?o:o.map(n=>n.role==="user"&&Array.isArray(n.content)?{...n,content:y(n.content,I)}:n.role==="toolResult"?{...n,content:y(n.content,M)}:n)}function w(o,t,n){const l=new Map,m=C(o,t).map(r=>{if(r.role==="user")return r;if(r.role==="toolResult"){const e=l.get(r.toolCallId);return e&&e!==r.toolCallId?{...r,toolCallId:e}:r}if(r.role==="assistant"){const e=r,i=e.provider===t.provider&&e.api===t.api&&e.model===t.id,g=e.content.flatMap(a=>{if(a.type==="thinking")return a.redacted?i?a:[]:i&&a.thinkingSignature?a:!a.thinking||a.thinking.trim()===""?[]:i?a:{type:"text",text:a.thinking};if(a.type==="text")return i?a:{type:"text",text:a.text};if(a.type==="toolCall"){const c=a;let p=c;if(!i&&c.thoughtSignature&&(p={...c},delete p.thoughtSignature),!i&&n){const x=n(c.id,t,e);x!==c.id&&(l.set(c.id,x),p={...p,id:x})}return p}return a});return{...e,content:g}}return r}),u=[];let f=[],s=new Set;const d=()=>{if(f.length>0){for(const r of f)s.has(r.id)||u.push({role:"toolResult",toolCallId:r.id,toolName:r.name,content:[{type:"text",text:"No result provided"}],isError:!0,timestamp:Date.now()});f=[],s=new Set}};for(let r=0;r<m.length;r++){const e=m[r];if(e.role==="assistant"){d();const i=e;if(i.stopReason==="error"||i.stopReason==="aborted")continue;const g=i.content.filter(a=>a.type==="toolCall");g.length>0&&(f=g,s=new Set),u.push(e)}else e.role==="toolResult"?(s.add(e.toolCallId),u.push(e)):(e.role==="user"&&d(),u.push(e))}return d(),u}export{O as a,S as b,w as t};

dist/assets/transform-messages-DSNYjDRn.js

@@ -0,0 +1 @@
+function w(a,t,n){return{temperature:t?.temperature,maxTokens:t?.maxTokens,signal:t?.signal,apiKey:n||t?.apiKey,transport:t?.transport,cacheRetention:t?.cacheRetention,sessionId:t?.sessionId,headers:t?.headers,onPayload:t?.onPayload,onResponse:t?.onResponse,timeoutMs:t?.timeoutMs,websocketConnectTimeoutMs:t?.websocketConnectTimeoutMs,maxRetries:t?.maxRetries,maxRetryDelayMs:t?.maxRetryDelayMs,metadata:t?.metadata}}function R(a){return a==="xhigh"?"high":a}function S(a,t,n,l){const m={...{minimal:1024,low:2048,medium:8192,high:16384},...l},u=1024,f=R(n);let s=m[f];const d=a===void 0?t:Math.min(a+s,t);return d<=s&&(s=Math.max(0,d-u)),{maxTokens:d,thinkingBudget:s}}const I="(image omitted: model does not support images)",M="(tool image omitted: model does not support images)";function y(a,t){const n=[];let l=!1;for(const h of a){if(h.type==="image"){l||n.push({type:"text",text:t}),l=!0;continue}n.push(h),l=h.text===t}return n}function C(a,t){return t.input.includes("image")?a:a.map(n=>n.role==="user"&&Array.isArray(n.content)?{...n,content:y(n.content,I)}:n.role==="toolResult"?{...n,content:y(n.content,M)}:n)}function O(a,t,n){const l=new Map,m=C(a,t).map(r=>{if(r.role==="user")return r;if(r.role==="toolResult"){const e=l.get(r.toolCallId);return e&&e!==r.toolCallId?{...r,toolCallId:e}:r}if(r.role==="assistant"){const e=r,i=e.provider===t.provider&&e.api===t.api&&e.model===t.id,g=e.content.flatMap(o=>{if(o.type==="thinking")return o.redacted?i?o:[]:i&&o.thinkingSignature?o:!o.thinking||o.thinking.trim()===""?[]:i?o:{type:"text",text:o.thinking};if(o.type==="text")return i?o:{type:"text",text:o.text};if(o.type==="toolCall"){const c=o;let p=c;if(!i&&c.thoughtSignature&&(p={...c},delete p.thoughtSignature),!i&&n){const x=n(c.id,t,e);x!==c.id&&(l.set(c.id,x),p={...p,id:x})}return p}return o});return{...e,content:g}}return r}),u=[];let f=[],s=new Set;const d=()=>{if(f.length>0){for(const r of f)s.has(r.id)||u.push({role:"toolResult",toolCallId:r.id,toolName:r.name,content:[{type:"text",text:"No result provided"}],isError:!0,timestamp:Date.now()});f=[],s=new Set}};for(let r=0;r<m.length;r++){const e=m[r];if(e.role==="assistant"){d();const i=e;if(i.stopReason==="error"||i.stopReason==="aborted")continue;const g=i.content.filter(o=>o.type==="toolCall");g.length>0&&(f=g,s=new Set),u.push(e)}else e.role==="toolResult"?(s.add(e.toolCallId),u.push(e)):(e.role==="user"&&d(),u.push(e))}return d(),u}export{S as a,w as b,O as t};

dist/index.html

@@ -3,85 +3,26 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Pi Web Agent</title>
-    <script type="module" crossorigin src="/assets/index-CgfZNSZZ.js"></script>
-    <link rel="stylesheet" crossorigin href="/assets/index-4NYd9uAS.css">
+    <title>Pi CLI Web</title>
+    <script type="module" crossorigin src="/assets/index-CB_zB4U3.js"></script>
+    <link rel="stylesheet" crossorigin href="/assets/index-NRwwiW4N.css">
   </head>
   <body>
     <main id="app">
-      <section class="app-shell">
-        <header class="topbar">
-          <div>
-            <h1>Pi Web Agent</h1>
-            <p id="model-label"></p>
-          </div>
-          <div class="status-stack" aria-label="Runtime status">
-            <span class="status" id="status">Idle</span>
-            <span class="status" id="model-status">Model idle</span>
-            <span class="status" id="sandbox-status">Sandbox idle</span>
-          </div>
-        </header>
-
-        <section class="layout">
-          <section class="chat-panel" aria-label="Conversation">
-            <div class="chat-scroll" id="chat"></div>
-
-            <form class="composer" id="composer">
-              <textarea id="prompt" spellcheck="true" rows="2">Create hello.js containing JavaScript that computes 21 * 2 and prints result: 42, then run node hello.js.</textarea>
-              <div class="composer-actions">
-                <button id="demo-prompt" type="button">Demo</button>
-                <button id="send" type="submit">Send</button>
-              </div>
-            </form>
-          </section>
-
-          <aside class="side-panel" aria-label="Agent controls and sandbox">
-            <section class="control-group">
-              <h2>Runtime</h2>
-              <label>
-                Model
-                <select id="mode">
-                  <option value="qwen25coder">Qwen2.5 Coder 0.5B planner</option>
-                  <option value="qwen">Qwen3 0.6B planner</option>
-                  <option value="minicpm">MiniCPM5 q4</option>
-                  <option value="mock">Deterministic test</option>
-                </select>
-              </label>
-              <label>
-                Device
-                <select id="device">
-                  <option value="webgpu">WebGPU</option>
-                  <option value="wasm">WASM</option>
-                </select>
-              </label>
-              <div class="compact-grid">
-                <label>
-                  Max tokens
-                  <input id="max-new-tokens" type="number" min="16" max="8192" step="1" value="256" />
-                </label>
-                <label>
-                  Temperature
-                  <input id="temperature" type="number" min="0" max="1.5" step="0.05" value="0" />
-                </label>
-              </div>
-              <button id="load-model" type="button">Download Model</button>
-            </section>
-
-            <section class="control-group">
-              <h2>Sandbox</h2>
-              <div class="button-row">
-                <button id="boot-sandbox" type="button">Boot</button>
-                <button id="reset-sandbox" type="button">Reset</button>
-              </div>
-              <pre id="files"></pre>
-            </section>
+      <header class="runtime-bar" aria-label="Runtime status">
+        <div>
+          <h1>pi</h1>
+          <p id="model-label"></p>
+        </div>
+        <div class="status-stack">
+          <span class="status" id="status">Idle</span>
+          <span class="status" id="model-status">Model idle</span>
+          <span class="status" id="sandbox-status">Sandbox idle</span>
+        </div>
+      </header>
 
-            <section class="control-group">
-              <h2>Events</h2>
-              <pre id="event-log"></pre>
-            </section>
-          </aside>
-        </section>
+      <section class="terminal-shell" aria-label="Pi terminal">
+        <div id="terminal"></div>
       </section>
 
       <section class="model-gate" id="model-gate" aria-labelledby="model-gate-title" aria-modal="true" role="dialog">
@@ -90,7 +31,7 @@
             <p class="eyebrow">Local model setup</p>
             <h2 id="model-gate-title">Download the selected model to this browser?</h2>
             <p class="dialog-copy">
-              The agent can run fully locally with a q4 ONNX model in Transformers.js. The download is large and stays in the browser cache when possible.
+              This static web port runs pi with Transformers.js and WebContainers. The model download stays in browser storage when possible.
             </p>
           </div>
           <div class="dialog-actions">

index.html

@@ -3,83 +3,24 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Pi Web Agent</title>
+    <title>Pi CLI Web</title>
   </head>
   <body>
     <main id="app">
-      <section class="app-shell">
-        <header class="topbar">
-          <div>
-            <h1>Pi Web Agent</h1>
-            <p id="model-label"></p>
-          </div>
-          <div class="status-stack" aria-label="Runtime status">
-            <span class="status" id="status">Idle</span>
-            <span class="status" id="model-status">Model idle</span>
-            <span class="status" id="sandbox-status">Sandbox idle</span>
-          </div>
-        </header>
-
-        <section class="layout">
-          <section class="chat-panel" aria-label="Conversation">
-            <div class="chat-scroll" id="chat"></div>
-
-            <form class="composer" id="composer">
-              <textarea id="prompt" spellcheck="true" rows="2">Create hello.js containing JavaScript that computes 21 * 2 and prints result: 42, then run node hello.js.</textarea>
-              <div class="composer-actions">
-                <button id="demo-prompt" type="button">Demo</button>
-                <button id="send" type="submit">Send</button>
-              </div>
-            </form>
-          </section>
-
-          <aside class="side-panel" aria-label="Agent controls and sandbox">
-            <section class="control-group">
-              <h2>Runtime</h2>
-              <label>
-                Model
-                <select id="mode">
-                  <option value="qwen25coder">Qwen2.5 Coder 0.5B planner</option>
-                  <option value="qwen">Qwen3 0.6B planner</option>
-                  <option value="minicpm">MiniCPM5 q4</option>
-                  <option value="mock">Deterministic test</option>
-                </select>
-              </label>
-              <label>
-                Device
-                <select id="device">
-                  <option value="webgpu">WebGPU</option>
-                  <option value="wasm">WASM</option>
-                </select>
-              </label>
-              <div class="compact-grid">
-                <label>
-                  Max tokens
-                  <input id="max-new-tokens" type="number" min="16" max="8192" step="1" value="256" />
-                </label>
-                <label>
-                  Temperature
-                  <input id="temperature" type="number" min="0" max="1.5" step="0.05" value="0" />
-                </label>
-              </div>
-              <button id="load-model" type="button">Download Model</button>
-            </section>
-
-            <section class="control-group">
-              <h2>Sandbox</h2>
-              <div class="button-row">
-                <button id="boot-sandbox" type="button">Boot</button>
-                <button id="reset-sandbox" type="button">Reset</button>
-              </div>
-              <pre id="files"></pre>
-            </section>
+      <header class="runtime-bar" aria-label="Runtime status">
+        <div>
+          <h1>pi</h1>
+          <p id="model-label"></p>
+        </div>
+        <div class="status-stack">
+          <span class="status" id="status">Idle</span>
+          <span class="status" id="model-status">Model idle</span>
+          <span class="status" id="sandbox-status">Sandbox idle</span>
+        </div>
+      </header>
 
-            <section class="control-group">
-              <h2>Events</h2>
-              <pre id="event-log"></pre>
-            </section>
-          </aside>
-        </section>
+      <section class="terminal-shell" aria-label="Pi terminal">
+        <div id="terminal"></div>
       </section>
 
       <section class="model-gate" id="model-gate" aria-labelledby="model-gate-title" aria-modal="true" role="dialog">
@@ -88,7 +29,7 @@
             <p class="eyebrow">Local model setup</p>
             <h2 id="model-gate-title">Download the selected model to this browser?</h2>
             <p class="dialog-copy">
-              The agent can run fully locally with a q4 ONNX model in Transformers.js. The download is large and stays in the browser cache when possible.
+              This static web port runs pi with Transformers.js and WebContainers. The model download stays in browser storage when possible.
             </p>
           </div>
           <div class="dialog-actions">

package.json

@@ -6,6 +6,7 @@
     "dev": "vite --host 0.0.0.0",
     "build": "vite build",
     "preview": "vite preview --host 0.0.0.0",
+    "parity:cli": "node scripts/compare_pi_cli_parity.mjs",
     "probe:tokens": "node scripts/probe_token_budgets.mjs",
     "smoke:complex": "node scripts/smoke_complex_tasks.mjs",
     "smoke:local-model": "node scripts/smoke_local_model_web_agent.mjs",
@@ -13,10 +14,14 @@
     "verify": "node scripts/verify_tjs_model.mjs"
   },
   "dependencies": {
-    "@earendil-works/pi-agent-core": "^0.75.5",
-    "@earendil-works/pi-ai": "^0.75.5",
+    "@earendil-works/pi-agent-core": "0.77.0",
+    "@earendil-works/pi-ai": "0.77.0",
+    "@earendil-works/pi-coding-agent": "0.77.0",
     "@huggingface/transformers": "^4.2.0",
     "@webcontainer/api": "^1.6.4",
+    "@xterm/addon-fit": "0.11.0",
+    "@xterm/xterm": "6.0.0",
+    "ghostty-web": "0.4.0",
     "vite": "^7.2.0"
   },
   "devDependencies": {

scripts/compare_pi_cli_parity.mjs

@@ -0,0 +1,89 @@
+import { chromium } from "@playwright/test";
+import { spawnSync } from "node:child_process";
+import { existsSync } from "node:fs";
+
+const baseUrl = process.argv[2] || "http://localhost:5173/?mode=mock&device=wasm";
+const executablePath = process.env.CHROMIUM_PATH || (existsSync("/usr/bin/google-chrome") ? "/usr/bin/google-chrome" : "/snap/bin/chromium");
+
+function extractToolBlock(text) {
+  const start = text.indexOf("Built-in Tool Names:");
+  if (start === -1) throw new Error("Missing Built-in Tool Names block.");
+  return text.slice(start).trim();
+}
+
+const piCli = "node_modules/@earendil-works/pi-coding-agent/dist/cli.js";
+function runPi(args) {
+  const result = spawnSync(process.execPath, [piCli, ...args], {
+    cwd: process.cwd(),
+    encoding: "utf-8",
+  });
+  if (result.status !== 0) {
+    throw new Error(`pi ${args.join(" ")} failed:\n${result.stderr || result.stdout}`);
+  }
+  return `${result.stdout || ""}${result.stderr || ""}`;
+}
+
+const cliHelp = runPi(["--help"]);
+const cliVersion = runPi(["--version"]).trim();
+
+const browser = await chromium.launch({
+  executablePath,
+  headless: true,
+  args: ["--no-sandbox", "--disable-dev-shm-usage"],
+});
+
+try {
+  const page = await browser.newPage();
+  page.setDefaultTimeout(120000);
+  await page.goto(baseUrl, { waitUntil: "domcontentloaded" });
+  await page.waitForFunction(() => window.__piCliWeb?.status === "Ready");
+  await page.evaluate(() => window.__piWebAgent.runInput("/help"));
+  await page.waitForFunction(() => window.__piCliWeb?.outputText?.includes("Built-in Tool Names:"));
+  await page.evaluate(() => window.__piWebAgent.runInput("/commands"));
+  await page.waitForFunction(() => window.__piCliWeb?.outputText?.includes("/compact [prompt]"));
+
+  const terminalText = await page.evaluate(() => window.__piCliWeb.outputText);
+  const cliToolBlock = extractToolBlock(cliHelp);
+  const webToolBlock = extractToolBlock(terminalText);
+  const requiredHelpLines = [
+    "pi - AI coding assistant with read, bash, edit, write tools",
+    "Usage:",
+    "--model <pattern>",
+    "--tools, -t <tools>",
+    "--exclude-tools, -xt <tools>",
+    "Built-in Tool Names:",
+  ];
+  const requiredSlashCommands = [
+    "/login",
+    "/model",
+    "/settings",
+    "/session",
+    "/tree",
+    "/compact [prompt]",
+    "/quit",
+  ];
+
+  for (const line of requiredHelpLines) {
+    if (!terminalText.includes(line) || !cliHelp.includes(line)) {
+      throw new Error(`Help parity failed for line: ${line}`);
+    }
+  }
+  for (const command of requiredSlashCommands) {
+    if (!terminalText.includes(command)) {
+      throw new Error(`Missing web slash command: ${command}`);
+    }
+  }
+  for (const tool of ["read", "bash", "edit", "write", "grep", "find", "ls"]) {
+    const marker = `${tool} `;
+    if (!cliToolBlock.includes(marker) || !webToolBlock.includes(marker)) {
+      throw new Error(`Tool parity failed for ${tool}.\nCLI:\n${cliToolBlock}\n\nWeb:\n${webToolBlock}`);
+    }
+  }
+  if (!terminalText.includes(`version ${cliVersion}`)) {
+    throw new Error(`Expected web startup to include CLI version ${cliVersion}.\n\nTerminal:\n${terminalText}`);
+  }
+
+  console.log(JSON.stringify({ ok: true, cliVersion, checkedTools: ["read", "bash", "edit", "write", "grep", "find", "ls"] }, null, 2));
+} finally {
+  await browser.close();
+}

scripts/probe_token_budgets.mjs

@@ -1,7 +1,7 @@
 import { chromium } from "@playwright/test";
 import { existsSync } from "node:fs";
 
-const baseUrl = process.argv[2] || "http://localhost:5173/?device=wasm";
+const baseUrl = process.argv[2] || "http://localhost:5173/?model=qwen25coder&device=wasm";
 const budgets = (process.env.TOKEN_BUDGETS || "80,256,2048,8192")
   .split(",")
   .map((value) => value.trim())
@@ -35,34 +35,29 @@ for (const budget of budgets) {
     });
 
     const started = Date.now();
-    await page.goto(baseUrl, { waitUntil: "networkidle" });
-    await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Ready");
-    await page.fill("#max-new-tokens", budget);
-    await page.fill("#temperature", "0");
-    await page.selectOption("#gate-device", "wasm");
-    await page.click("#confirm-load-model");
-    await page.waitForFunction(() => window.__piWebAgent?.modelReady === true, null, {
-      timeout: 600000,
-    });
+    await page.goto(`${baseUrl}&tokens=${budget}`, { waitUntil: "domcontentloaded" });
+    await page.waitForFunction(() => window.__piCliWeb?.status === "Ready");
+    if (!(await page.evaluate(() => window.__piWebAgent?.modelReady === true))) {
+      await page.evaluate(() => window.__piWebAgent.loadModel());
+      await page.waitForFunction(() => window.__piWebAgent?.modelReady === true, null, {
+        timeout: 600000,
+      });
+    }
     result.loadMs = Date.now() - started;
 
     const runStarted = Date.now();
-    await page.click("#send");
-    await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Agent running", null, {
-      timeout: 120000,
-    });
-    await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Ready", null, {
+    await page.evaluate(() =>
+      window.__piWebAgent.runInput("Create hello.js containing JavaScript that computes 21 * 2 and prints result: 42, then run node hello.js."),
+    );
+    await page.waitForFunction(() => window.__piCliWeb?.status === "Ready" && window.__piWebAgent?.transcript?.includes("42"), null, {
       timeout: 1200000,
     });
-    await page.waitForFunction(() => window.__piWebAgent?.transcript?.includes("42"), null, {
-      timeout: 120000,
-    });
     result.runMs = Date.now() - runStarted;
 
     const transcript = await page.evaluate(() => window.__piWebAgent?.transcript || "");
-    const files = await page.textContent("#files");
+    const terminalText = await page.evaluate(() => window.__piCliWeb?.outputText || "");
     result.modelStatus = await page.textContent("#model-status");
-    result.ok = transcript.includes("42") && files?.includes("hello.js");
+    result.ok = transcript.includes("42") && terminalText.includes("write hello.js");
     result.transcriptChars = transcript.length;
   } catch (error) {
     result.error = error instanceof Error ? error.message : String(error);

scripts/smoke_complex_tasks.mjs

@@ -11,21 +11,21 @@ const tasks = [
     prompt:
       "Create hello.js containing JavaScript that computes 21 * 2 and prints result: 42, then run node hello.js.",
     expectedOutput: "42",
-    expectedFiles: ["hello.js"],
+    expectedTerminal: ["write hello.js", "$ node hello.js"],
   },
   {
     id: "npm-dependency",
     prompt:
       "Install npm package is-number@7.0.0, create check-package.mjs that imports it and prints dependency check: true, then run it with Node.",
     expectedOutput: "dependency check: true",
-    expectedFiles: ["check-package.mjs", "node_modules"],
+    expectedTerminal: ["npm install is-number@7.0.0", "$ node check-package.mjs"],
   },
   {
     id: "multi-file-module",
     prompt:
       "Create src/math.mjs exporting multiply(a,b), create test.mjs importing it and printing multi result: 42 for multiply(6,7), then run node test.mjs.",
     expectedOutput: "multi result: 42",
-    expectedFiles: ["test.mjs", "src"],
+    expectedTerminal: ["write src/math.mjs", "write test.mjs", "$ node test.mjs"],
   },
 ];
 
@@ -47,48 +47,39 @@ async function runTask(task) {
       consoleLines.push(`pageerror: ${error.stack || error.message}`);
     });
 
-    await page.goto(baseUrl, { waitUntil: "networkidle" });
-    await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Ready");
+    await page.goto(`${baseUrl}&tokens=${maxNewTokens}`, { waitUntil: "domcontentloaded" });
+    await page.waitForFunction(() => window.__piCliWeb?.status === "Ready");
     const isolated = await page.evaluate(() => globalThis.crossOriginIsolated);
     if (!isolated) throw new Error("Page is not cross-origin isolated.");
 
-    await page.fill("#max-new-tokens", maxNewTokens);
-    await page.fill("#temperature", "0");
-    await page.selectOption("#gate-device", "wasm");
-    await page.click("#confirm-load-model");
-    await page.waitForFunction(() => window.__piWebAgent?.modelReady === true, null, {
-      timeout: 600000,
-    });
+    if (!(await page.evaluate(() => window.__piWebAgent?.modelReady === true))) {
+      await page.evaluate(() => window.__piWebAgent.loadModel());
+      await page.waitForFunction(() => window.__piWebAgent?.modelReady === true, null, {
+        timeout: 600000,
+      });
+    }
 
     const started = Date.now();
-    await page.fill("#prompt", task.prompt);
-    await page.click("#send");
-    await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Agent running", null, {
-      timeout: 120000,
-    });
-    await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Ready", null, {
-      timeout: 1200000,
-    });
+    await page.evaluate((prompt) => window.__piWebAgent.runInput(prompt), task.prompt);
+    await page.waitForFunction(
+      (expected) => window.__piCliWeb?.status === "Ready" && window.__piCliWeb?.outputText?.toLowerCase().includes(expected.toLowerCase()),
+      task.expectedOutput,
+      { timeout: 1200000 },
+    );
 
     const transcript = await page.evaluate(() => window.__piWebAgent?.transcript || "");
-    const files = await page.textContent("#files");
-    const events = await page.textContent("#event-log");
+    const terminalText = await page.evaluate(() => window.__piCliWeb?.outputText || "");
     const modelStatus = await page.textContent("#model-status");
-    const lowerTranscript = transcript.toLowerCase();
-    const lowerEvents = events?.toLowerCase() || "";
-    const lowerFiles = files?.toLowerCase() || "";
+    const lowerTerminal = terminalText.toLowerCase();
 
-    if (!lowerTranscript.includes(task.expectedOutput.toLowerCase())) {
-      throw new Error(`Expected output ${task.expectedOutput}.\n\nTranscript:\n${transcript}\n\nEvents:\n${events}`);
+    if (!lowerTerminal.includes(task.expectedOutput.toLowerCase()) || !transcript.toLowerCase().includes(task.expectedOutput.toLowerCase())) {
+      throw new Error(`Expected output ${task.expectedOutput}.\n\nTranscript:\n${transcript}\n\nTerminal:\n${terminalText}`);
     }
-    for (const file of task.expectedFiles) {
-      if (!lowerFiles.includes(file.toLowerCase())) {
-        throw new Error(`Expected ${file} in file listing.\n\nFiles:\n${files}\n\nTranscript:\n${transcript}`);
+    for (const marker of task.expectedTerminal) {
+      if (!lowerTerminal.includes(marker.toLowerCase())) {
+        throw new Error(`Expected terminal marker ${marker}.\n\nTerminal:\n${terminalText}`);
       }
     }
-    if (!lowerEvents.includes("tool: run_command finished")) {
-      throw new Error(`Expected run_command tool execution.\n\nEvents:\n${events}`);
-    }
 
     return {
       id: task.id,
@@ -96,7 +87,6 @@ async function runTask(task) {
       maxNewTokens,
       modelStatus,
       runMs: Date.now() - started,
-      files,
       transcriptChars: transcript.length,
       warnings: consoleLines.filter((line) => line.startsWith("warning:")).slice(-3),
     };

scripts/smoke_local_model_web_agent.mjs

@@ -1,7 +1,7 @@
 import { chromium } from "@playwright/test";
 import { existsSync } from "node:fs";
 
-const baseUrl = process.argv[2] || "http://localhost:5173/?device=wasm";
+const baseUrl = process.argv[2] || "http://localhost:5173/?model=qwen25coder&device=wasm";
 const executablePath = process.env.CHROMIUM_PATH || (existsSync("/usr/bin/google-chrome") ? "/usr/bin/google-chrome" : "/snap/bin/chromium");
 const maxNewTokens = process.env.MAX_NEW_TOKENS || "80";
 
@@ -13,7 +13,7 @@ const browser = await chromium.launch({
 
 try {
   const page = await browser.newPage();
-  page.setDefaultTimeout(600000);
+  page.setDefaultTimeout(900000);
   const consoleLines = [];
   page.on("console", (message) => {
     consoleLines.push(`${message.type()}: ${message.text()}`);
@@ -22,48 +22,38 @@ try {
     consoleLines.push(`pageerror: ${error.stack || error.message}`);
   });
 
-  await page.goto(baseUrl, { waitUntil: "networkidle" });
-  await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Ready");
+  await page.goto(`${baseUrl}&tokens=${maxNewTokens}`, { waitUntil: "domcontentloaded" });
+  await page.waitForFunction(() => window.__piCliWeb?.status === "Ready");
 
   const isolated = await page.evaluate(() => globalThis.crossOriginIsolated);
   if (!isolated) throw new Error("Page is not cross-origin isolated.");
 
-  await page.fill("#max-new-tokens", maxNewTokens);
-  await page.fill("#temperature", "0");
-  await page.selectOption("#gate-device", "wasm");
-  await page.click("#confirm-load-model");
-  await page.waitForFunction(() => window.__piWebAgent?.modelReady === true, null, {
-    timeout: 600000,
-  });
+  if (!(await page.evaluate(() => window.__piWebAgent?.modelReady === true))) {
+    await page.evaluate(() => window.__piWebAgent.loadModel());
+    await page.waitForFunction(() => window.__piWebAgent?.modelReady === true, null, {
+      timeout: 600000,
+    });
+  }
 
-  await page.click("#send");
-  await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Agent running", null, {
-    timeout: 120000,
-  });
-  await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Ready", null, {
+  await page.evaluate(() =>
+    window.__piWebAgent.runInput("Create hello.js containing JavaScript that computes 21 * 2 and prints result: 42, then run node hello.js."),
+  );
+  await page.waitForFunction(() => window.__piCliWeb?.status === "Ready" && window.__piWebAgent?.transcript?.includes("42"), null, {
     timeout: 600000,
   });
-  await page.waitForFunction(() => window.__piWebAgent?.transcript?.includes("42"), null, {
-    timeout: 120000,
-  });
 
   const transcript = await page.evaluate(() => window.__piWebAgent?.transcript || "");
-  const chatText = await page.textContent("#chat");
-  const files = await page.textContent("#files");
-  const events = await page.textContent("#event-log");
+  const terminalText = await page.evaluate(() => window.__piCliWeb?.outputText || "");
   const modelStatus = await page.textContent("#model-status");
 
-  if (!transcript.includes("42") || !chatText?.includes("42")) {
-    throw new Error(`Expected command output in chat transcript.\n\nTranscript:\n${transcript}\n\nChat:\n${chatText}\n\nEvents:\n${events}`);
-  }
-  if (!files?.includes("hello.js")) {
-    throw new Error(`Expected hello.js in file listing.\n\nFiles:\n${files}`);
+  if (!transcript.includes("42") || !terminalText.includes("42")) {
+    throw new Error(`Expected command output in terminal transcript.\n\nTranscript:\n${transcript}\n\nTerminal:\n${terminalText}`);
   }
   if (modelStatus !== "Model ready") {
     throw new Error(`Expected local model status to be ready, got: ${modelStatus}`);
   }
 
-  console.log(JSON.stringify({ ok: true, isolated, maxNewTokens, modelStatus, transcript, files }, null, 2));
+  console.log(JSON.stringify({ ok: true, isolated, maxNewTokens, modelStatus, transcriptChars: transcript.length, warnings: consoleLines.filter((line) => line.startsWith("warning:")).slice(-3) }, null, 2));
 } catch (error) {
   console.error(error instanceof Error ? error.stack || error.message : String(error));
   throw error;

scripts/smoke_web_agent.mjs

@@ -12,7 +12,7 @@ const browser = await chromium.launch({
 
 try {
   const page = await browser.newPage();
-  page.setDefaultTimeout(90000);
+  page.setDefaultTimeout(180000);
 
   const consoleLines = [];
   page.on("console", (message) => {
@@ -23,37 +23,50 @@ try {
   });
 
   await page.goto(baseUrl, { waitUntil: "domcontentloaded" });
+  await page.waitForFunction(() => window.__piCliWeb?.status === "Ready");
   const isolated = await page.evaluate(() => globalThis.crossOriginIsolated);
-  if (!isolated) {
-    throw new Error("Page is not cross-origin isolated.");
-  }
+  if (!isolated) throw new Error("Page is not cross-origin isolated.");
+
+  await page.click("#terminal");
+  await page.keyboard.type("/help");
+  await page.keyboard.press("Enter");
+  await page.waitForFunction(() => window.__piCliWeb?.outputText?.includes("Built-in Tool Names"));
 
-  await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Ready");
-  await page.click("#send");
-  await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Agent running", null, {
+  await page.keyboard.type("!!node -e \"console.log(6*7)\"");
+  await page.keyboard.press("Enter");
+  await page.waitForFunction(() => window.__piCliWeb?.outputText?.includes("exit 0") && window.__piCliWeb?.outputText?.includes("42"), null, {
     timeout: 120000,
   });
-  await page.waitForFunction(() => window.__piWebAgent?.transcript?.includes("pi sandbox result: 42"), null, {
+
+  await page.evaluate(() =>
+    window.__piWebAgent.runInput("Create hello.js containing JavaScript that computes 21 * 2 and prints result: 42, then run node hello.js."),
+  );
+  await page.waitForFunction(() => window.__piCliWeb?.outputText?.includes("pi sandbox result: 42"), null, {
     timeout: 120000,
   });
-  await page.waitForFunction(() => document.querySelector("#status")?.textContent === "Ready");
 
+  const terminalText = await page.evaluate(() => window.__piCliWeb?.outputText || "");
   const transcript = await page.evaluate(() => window.__piWebAgent?.transcript || "");
-  const chatText = await page.textContent("#chat");
-  const files = await page.textContent("#files");
-  const events = await page.textContent("#event-log");
+  const required = [
+    "pi - AI coding assistant with read, bash, edit, write tools",
+    "Built-in Tool Names:",
+    "read   - Read file contents",
+    "bash   - Execute bash commands",
+    "write hello.js",
+    "$ node hello.js",
+    "pi sandbox result: 42",
+  ];
 
-  if (!transcript.includes("pi sandbox result: 42") || !chatText?.includes("pi sandbox result: 42")) {
-    throw new Error(`Expected command output in chat transcript.\n\nTranscript:\n${transcript}\n\nChat:\n${chatText}\n\nEvents:\n${events}`);
-  }
-  if (!files?.includes("hello.js")) {
-    throw new Error(`Expected hello.js in file listing.\n\nFiles:\n${files}`);
+  for (const marker of required) {
+    if (!terminalText.includes(marker)) {
+      throw new Error(`Missing terminal marker "${marker}".\n\nTerminal:\n${terminalText}`);
+    }
   }
-  if (!events?.includes("run_command finished")) {
-    throw new Error(`Expected pi tool execution events.\n\nEvents:\n${events}`);
+  if (!transcript.includes("pi sandbox result: 42")) {
+    throw new Error(`Expected command output in agent transcript.\n\nTranscript:\n${transcript}\n\nTerminal:\n${terminalText}`);
   }
 
-  console.log(JSON.stringify({ ok: true, isolated, transcript, files }, null, 2));
+  console.log(JSON.stringify({ ok: true, isolated, terminalEngine: await page.evaluate(() => window.__piCliWeb?.outputText.includes("ghostty-web") ? "ghostty-web" : "xterm"), transcript }, null, 2));
 } catch (error) {
   console.error(error instanceof Error ? error.stack || error.message : String(error));
   throw error;

src/main.js

@@ -1,383 +1,55 @@
-import { DEFAULT_LOCAL_MODEL_KEY, LOCAL_MODELS, createPiAgent } from "./piAgent.js";
+import { createPiCli } from "./piCli.js";
 import { createSandbox } from "./sandbox.js";
 import "./styles.css";
+import { createWebTerminal } from "./webTerminal.js";
 
 const nodes = {
   status: document.querySelector("#status"),
   modelStatus: document.querySelector("#model-status"),
   sandboxStatus: document.querySelector("#sandbox-status"),
-  chat: document.querySelector("#chat"),
-  eventLog: document.querySelector("#event-log"),
-  files: document.querySelector("#files"),
-  prompt: document.querySelector("#prompt"),
-  composer: document.querySelector("#composer"),
-  send: document.querySelector("#send"),
-  boot: document.querySelector("#boot-sandbox"),
-  reset: document.querySelector("#reset-sandbox"),
-  demo: document.querySelector("#demo-prompt"),
-  mode: document.querySelector("#mode"),
-  device: document.querySelector("#device"),
-  gateDevice: document.querySelector("#gate-device"),
-  maxTokens: document.querySelector("#max-new-tokens"),
-  temperature: document.querySelector("#temperature"),
   modelLabel: document.querySelector("#model-label"),
-  loadModel: document.querySelector("#load-model"),
-  confirmLoadModel: document.querySelector("#confirm-load-model"),
-  useTestModel: document.querySelector("#use-test-model"),
+  terminal: document.querySelector("#terminal"),
   modelGate: document.querySelector("#model-gate"),
   gateStatus: document.querySelector("#gate-status"),
+  gateDevice: document.querySelector("#gate-device"),
+  confirmLoadModel: document.querySelector("#confirm-load-model"),
+  useTestModel: document.querySelector("#use-test-model"),
 };
 
 const params = new URLSearchParams(window.location.search);
-let modelReady = false;
-let transcriptText = "";
-
-if (!navigator.gpu) {
-  nodes.device.value = "wasm";
-  nodes.gateDevice.value = "wasm";
-}
-if (params.get("device")) {
-  nodes.device.value = params.get("device");
-  nodes.gateDevice.value = params.get("device");
-}
-if (LOCAL_MODELS[params.get("model")]) nodes.mode.value = params.get("model");
-if (LOCAL_MODELS[params.get("mode")]) nodes.mode.value = params.get("mode");
-if (params.get("mode") === "mock") nodes.mode.value = "mock";
-if (!LOCAL_MODELS[nodes.mode.value] && nodes.mode.value !== "mock") nodes.mode.value = DEFAULT_LOCAL_MODEL_KEY;
+const terminal = await createWebTerminal(nodes.terminal);
 
 const sandbox = createSandbox({
-  onStatus: (text) => setSandboxStatus(text),
-  onLog: (text) => logEvent("sandbox", text),
-});
-
-let agent = createAgent();
-
-function selectedModel() {
-  return LOCAL_MODELS[nodes.mode.value] || LOCAL_MODELS[DEFAULT_LOCAL_MODEL_KEY];
-}
-
-function isMockMode() {
-  return nodes.mode.value === "mock";
-}
-
-function updateModelLabel() {
-  nodes.modelLabel.textContent = isMockMode() ? "Deterministic test model" : selectedModel().id;
-}
-
-function textFromContent(content) {
-  if (typeof content === "string") return content;
-  if (!Array.isArray(content)) return "";
-  return content
-    .filter((part) => part.type === "text")
-    .map((part) => part.text)
-    .join("\n");
-}
-
-function setStatus(text) {
-  nodes.status.textContent = text;
-}
-
-function setSandboxStatus(text) {
-  nodes.sandboxStatus.textContent = text;
-}
-
-function setModelStatus(text) {
-  nodes.modelStatus.textContent = text;
-}
-
-function setBusy(isBusy) {
-  nodes.send.disabled = isBusy;
-  nodes.loadModel.disabled = isBusy;
-  nodes.confirmLoadModel.disabled = isBusy;
-  nodes.useTestModel.disabled = isBusy;
-}
-
-function logEvent(kind, text) {
-  const line = `[${new Date().toLocaleTimeString()}] ${kind}: ${text}`;
-  nodes.eventLog.textContent = `${nodes.eventLog.textContent}${line}\n`;
-  nodes.eventLog.scrollTop = nodes.eventLog.scrollHeight;
-}
-
-function createAgent() {
-  const next = createPiAgent({
-    sandbox,
-    modelMode: () => nodes.mode.value,
-    device: () => nodes.device.value,
-    maxTokens: () => nodes.maxTokens.value,
-    temperature: () => nodes.temperature.value,
-    onModelStatus: setModelStatus,
-  });
-  next.subscribe((event) => {
-    switch (event.type) {
-      case "agent_start":
-        setStatus("Agent running");
-        setBusy(true);
-        logEvent("agent", "start");
-        break;
-      case "message_end":
-        renderChat();
-        break;
-      case "tool_execution_start":
-        logEvent("tool", `${event.toolName} started`);
-        break;
-      case "tool_execution_end":
-        logEvent("tool", `${event.toolName} finished`);
-        break;
-      case "agent_end":
-        setStatus("Ready");
-        setBusy(false);
-        renderChat();
-        refreshFiles().catch((error) => logEvent("files", error.message));
-        break;
-      default:
-        break;
-    }
-  });
-  return next;
-}
-
-function resetAgent() {
-  agent.abort();
-  agent = createAgent();
-  renderChat();
-}
-
-function makeElement(tag, className, text) {
-  const element = document.createElement(tag);
-  if (className) element.className = className;
-  if (text !== undefined) element.textContent = text;
-  return element;
-}
-
-function renderMessage(message) {
-  if (message.role === "user") {
-    const bubble = makeElement("article", "message user");
-    bubble.append(makeElement("div", "message-label", "You"));
-    bubble.append(makeElement("div", "message-body", textFromContent(message.content)));
-    return bubble;
-  }
-
-  if (message.role === "toolResult") {
-    const bubble = makeElement("article", `message tool${message.isError ? " error" : ""}`);
-    bubble.append(makeElement("div", "message-label", message.isError ? `Tool error: ${message.toolName}` : `Tool: ${message.toolName}`));
-    const body = makeElement("pre", "message-code", textFromContent(message.content));
-    bubble.append(body);
-    return bubble;
-  }
-
-  const bubble = makeElement("article", "message assistant");
-  bubble.append(makeElement("div", "message-label", "Pi"));
-  const text = textFromContent(message.content);
-  if (text) bubble.append(makeElement("div", "message-body", text));
-  const toolCalls = Array.isArray(message.content) ? message.content.filter((part) => part.type === "toolCall") : [];
-  for (const call of toolCalls) {
-    const tool = makeElement("div", "tool-call");
-    tool.append(makeElement("span", "tool-name", call.name));
-    tool.append(makeElement("code", "", JSON.stringify(call.arguments)));
-    bubble.append(tool);
-  }
-  return bubble;
-}
-
-function renderChat() {
-  nodes.chat.textContent = "";
-  const messages = agent.state.messages;
-  transcriptText = messages
-    .map((message) => {
-      if (message.role === "toolResult") return `TOOL ${message.toolName}\n${textFromContent(message.content)}`;
-      return `${message.role.toUpperCase()}\n${textFromContent(message.content)}`;
-    })
-    .join("\n\n");
-
-  if (messages.length === 0) {
-    const empty = makeElement("section", "empty-chat");
-    empty.append(makeElement("h2", "", "What should Pi do in the sandbox?"));
-    empty.append(makeElement("p", "", "Ready when you are."));
-    nodes.chat.append(empty);
-  } else {
-    for (const message of messages) {
-      nodes.chat.append(renderMessage(message));
-    }
-  }
-  nodes.chat.scrollTop = nodes.chat.scrollHeight;
-}
-
-async function refreshFiles() {
-  if (!sandbox.isReady) {
-    nodes.files.textContent = "Sandbox not booted.";
-    return;
-  }
-  nodes.files.textContent = await sandbox.listFiles(".");
-}
-
-async function bootSandbox({ refresh = true, rethrow = false } = {}) {
-  nodes.boot.disabled = true;
-  try {
-    await sandbox.boot();
-    if (refresh) await refreshFiles();
-  } catch (error) {
-    setSandboxStatus("Sandbox error");
-    logEvent("sandbox", error.stack || error.message || String(error));
-    if (rethrow) throw error;
-  } finally {
-    nodes.boot.disabled = false;
-  }
-}
-
-function hideGate() {
-  nodes.modelGate.classList.add("hidden");
-}
-
-function showGate(text = "Ready.") {
-  nodes.gateStatus.textContent = text;
-  nodes.modelGate.classList.remove("hidden");
-}
-
-async function loadModelFromControls() {
-  if (nodes.mode.value === "mock") {
-    modelReady = true;
-    setModelStatus("Deterministic test model");
-    hideGate();
-    return;
-  }
-
-  setBusy(true);
-  nodes.gateStatus.textContent = "Downloading model...";
-  try {
-    nodes.gateStatus.textContent = "Booting sandbox...";
-    await bootSandbox({ refresh: false, rethrow: true });
-    refreshFiles().catch((error) => logEvent("files", error.message));
-    nodes.gateStatus.textContent = "Downloading model...";
-    await agent.preloadModel();
-    modelReady = true;
-    setModelStatus("Model ready");
-    nodes.gateStatus.textContent = "Model ready.";
-    hideGate();
-  } catch (error) {
-    const message = error.stack || error.message || String(error);
-    setModelStatus("Model error");
-    nodes.gateStatus.textContent = message;
-    logEvent("model", message);
-  } finally {
-    setBusy(false);
-  }
-}
-
-async function sendPrompt() {
-  const prompt = nodes.prompt.value.trim();
-  if (!prompt) return;
-  if (!isMockMode() && !modelReady) {
-    showGate("Download the model before sending, or use the test model.");
-    return;
-  }
-
-  setBusy(true);
-  setStatus("Agent running");
-  logEvent("agent", "start");
-  try {
-    await bootSandbox({ refresh: false, rethrow: true });
-    refreshFiles().catch((error) => logEvent("files", error.message));
-    nodes.prompt.value = "";
-    await agent.prompt(prompt);
-  } catch (error) {
-    setStatus("Error");
-    setBusy(false);
-    logEvent("agent", error.stack || error.message || String(error));
-  }
-}
-
-nodes.boot.addEventListener("click", bootSandbox);
-
-nodes.reset.addEventListener("click", async () => {
-  nodes.reset.disabled = true;
-  try {
-    await sandbox.reset();
-    resetAgent();
-    await refreshFiles();
-  } catch (error) {
-    logEvent("reset", error.stack || error.message || String(error));
-  } finally {
-    nodes.reset.disabled = false;
-  }
-});
-
-nodes.demo.addEventListener("click", () => {
-  nodes.prompt.value = "Create hello.js containing JavaScript that computes 21 * 2 and prints result: 42, then run node hello.js.";
-  nodes.prompt.focus();
-});
-
-nodes.composer.addEventListener("submit", (event) => {
-  event.preventDefault();
-  setTimeout(() => sendPrompt(), 0);
-});
-
-nodes.prompt.addEventListener("keydown", (event) => {
-  if (event.key === "Enter" && (event.metaKey || event.ctrlKey)) {
-    event.preventDefault();
-    setTimeout(() => sendPrompt(), 0);
-  }
-});
-
-nodes.mode.addEventListener("change", () => {
-  modelReady = isMockMode();
-  resetAgent();
-  updateModelLabel();
-  setModelStatus(isMockMode() ? "Deterministic test model" : "Model idle");
-});
-
-nodes.device.addEventListener("change", () => {
-  nodes.gateDevice.value = nodes.device.value;
-  modelReady = isMockMode();
-  if (!isMockMode()) setModelStatus("Model idle");
-  resetAgent();
-});
-
-nodes.gateDevice.addEventListener("change", () => {
-  nodes.device.value = nodes.gateDevice.value;
-});
-
-nodes.loadModel.addEventListener("click", () => {
-  if (isMockMode()) {
-    nodes.mode.value = DEFAULT_LOCAL_MODEL_KEY;
-    updateModelLabel();
-    resetAgent();
-  }
-  showGate("Ready.");
-});
-
-nodes.confirmLoadModel.addEventListener("click", async () => {
-  nodes.device.value = nodes.gateDevice.value;
-  resetAgent();
-  await loadModelFromControls();
+  onStatus: (text) => {
+    nodes.sandboxStatus.textContent = text;
+  },
 });
 
-nodes.useTestModel.addEventListener("click", () => {
-  nodes.mode.value = "mock";
-  modelReady = true;
-  resetAgent();
-  setModelStatus("Deterministic test model");
-  hideGate();
+const cli = createPiCli({
+  terminal,
+  sandbox,
+  nodes,
+  params,
 });
 
-setStatus("Ready");
-setSandboxStatus("Not booted");
-modelReady = isMockMode();
-updateModelLabel();
-setModelStatus(modelReady ? "Deterministic test model" : "Model idle");
-renderChat();
-refreshFiles().catch(() => {});
-
-if (params.get("setup") === "skip" || nodes.mode.value === "mock") {
-  hideGate();
-} else {
-  showGate("Ready.");
-}
-
+window.__piCliWeb = cli;
 window.__piWebAgent = {
   get transcript() {
-    return transcriptText;
+    return cli.transcript;
+  },
+  get terminalText() {
+    return cli.outputText;
   },
   get modelReady() {
-    return modelReady;
+    return cli.modelReady;
+  },
+  get status() {
+    return cli.status;
+  },
+  runInput(text) {
+    return cli.handleLine(text);
+  },
+  loadModel() {
+    return cli.loadModel();
   },
 };

src/piAgent.js

@@ -21,6 +21,7 @@ const LOCAL_MODELS = {
 };
 
 const DEFAULT_LOCAL_MODEL_KEY = "qwen25coder";
+const DEFAULT_MAX_NEW_TOKENS = 256;
 
 function getLocalModel(key) {
   return LOCAL_MODELS[key] || LOCAL_MODELS[DEFAULT_LOCAL_MODEL_KEY];
@@ -106,12 +107,12 @@ function buildPrompt(context) {
     })
     .join("\n\n");
 
-  return `You are running as a pi Agent inside a browser-only app. The sandbox is a WebContainer: it has a virtual filesystem and can spawn browser-contained Node.js processes.
+  return `You are running as pi, the coding-agent CLI, ported to a browser terminal. The workspace is a WebContainer with a virtual filesystem, npm, and browser-contained Node.js processes.
 
-Use tools by returning strict JSON only. Do not use markdown.
+Use Pi tools by returning strict JSON only. Do not use markdown.
 
 To call tools:
-{"toolCalls":[{"tool":"write_file","args":{"path":"hello.js","content":"console.log(2 + 2)\\n"}},{"tool":"run_command","args":{"command":"node","args":["hello.js"]}}]}
+{"toolCalls":[{"tool":"write","args":{"path":"hello.js","content":"console.log(2 + 2)\\n"}},{"tool":"bash","args":{"command":"node hello.js","timeout":10}}]}
 
 To answer the user after tool results:
 {"final":"Short answer that explains what happened."}
@@ -126,10 +127,8 @@ Return JSON now.`;
 }
 
 function buildQwenMessages(context) {
-  const lastUserText = [...context.messages]
-    .reverse()
-    .find((message) => message.role === "user");
-  const taskText = textFromContent(lastUserText?.content || "");
+  const lastUser = [...context.messages].reverse().find((message) => message.role === "user");
+  const taskText = textFromContent(lastUser?.content || "");
   const transcript = context.messages
     .slice(-8)
     .map((message) => {
@@ -143,7 +142,7 @@ function buildQwenMessages(context) {
     return [
       {
         role: "system",
-        content: "You are Pi Web Agent. Give a concise final answer from the sandbox tool results. Do not emit JSON.",
+        content: "You are pi in a browser terminal. Give a concise final answer from the tool results. Do not emit JSON.",
       },
       {
         role: "user",
@@ -154,32 +153,32 @@ function buildQwenMessages(context) {
 
   const loweredTask = taskText.toLowerCase();
   let example = `<plan>
-<write_file path="app.js">
+<write path="app.js">
 console.log(2 * 2);
-</write_file>
-<run_command command="node" args="app.js" timeoutMs="10000"></run_command>
+</write>
+<bash command="node app.js" timeout="10"></bash>
 </plan>`;
   if (/\b(npm|install|package|dependency)\b/.test(loweredTask)) {
     example = `<plan>
-<write_file path="pad.mjs">
+<write path="pad.mjs">
 import leftPad from 'left-pad';
 console.log('padded: ' + leftPad('5', 3, '0'));
-</write_file>
-<run_command command="npm" args="install left-pad@1.3.0" timeoutMs="120000"></run_command>
-<run_command command="node" args="pad.mjs" timeoutMs="10000"></run_command>
+</write>
+<bash command="npm install left-pad@1.3.0" timeout="120"></bash>
+<bash command="node pad.mjs" timeout="10"></bash>
 </plan>`;
   } else if (/\b(src\/|import|export|module|multi[- ]?file)\b/.test(loweredTask)) {
     example = `<plan>
-<write_file path="src/util.mjs">
+<write path="src/util.mjs">
 export function add(a, b) {
   return a + b;
 }
-</write_file>
-<write_file path="test.mjs">
+</write>
+<write path="test.mjs">
 import { add } from './src/util.mjs';
 console.log('sum: ' + add(2, 3));
-</write_file>
-<run_command command="node" args="test.mjs" timeoutMs="10000"></run_command>
+</write>
+<bash command="node test.mjs" timeout="10"></bash>
 </plan>`;
   }
 
@@ -187,7 +186,7 @@ console.log('sum: ' + add(2, 3));
     {
       role: "system",
       content:
-        'Return only a complete <plan>...</plan>. No markdown or prose. Inside the plan use <write_file path="...">code</write_file>, <run_command command="..." args="..." timeoutMs="..."></run_command>, <read_file path="..."></read_file>, and <list_files path="..."></list_files>. Every task that says run must end with a run_command tag. Multi-file tasks must write every requested file before run_command. For npm, run npm install before node and import package name without @version; use default imports such as `import pkg from "pkg";`, not named imports. Use exact filenames. Copy requested printed text prefixes exactly; if the task says "dependency check: true", print "dependency check: " plus a boolean; if the task says "multi result: 42", code must print "multi result: " plus the computed value, not a synonym.',
+        'Return only a complete <plan>...</plan>. No markdown or prose. Use Pi CLI tool tags: <write path="...">code</write>, <bash command="..." timeout="10"></bash>, <read path="..." offset="1" limit="200"></read>, <ls path="."></ls>, <grep pattern="..." path="." glob="*.js"></grep>, <find pattern="*.js" path="."></find>, and <edit path="..."><replace old="..." new="..."></replace></edit>. Every task that says run must end with a bash tag. Multi-file tasks must write every requested file before bash. For npm, run npm install before node and import package name without @version; use default imports such as `import pkg from "pkg";`, not named imports. Use exact filenames. Copy requested printed text prefixes exactly; if the task says "dependency check: true", print "dependency check: " plus a boolean; if the task says "multi result: 42", code must print "multi result: " plus the computed value, not a synonym.',
     },
     {
       role: "user",
@@ -320,13 +319,152 @@ function normalizeCommandArgs(args = {}) {
   const normalized = { ...args };
   if (typeof normalized.args === "string") normalized.args = splitCommandLine(normalized.args);
   if (!Array.isArray(normalized.args)) normalized.args = [];
-  if (typeof normalized.command === "string" && normalized.command.includes(" ") && normalized.args.length === 0) {
-    const [command, ...rest] = splitCommandLine(normalized.command);
-    normalized.command = command;
-    normalized.args = rest;
+  if (typeof normalized.command === "string" && normalized.args.length > 0) {
+    normalized.command = [normalized.command, ...normalized.args].join(" ");
+    normalized.args = [];
   }
-  if (normalized.timeoutMs !== undefined) normalized.timeoutMs = Number(normalized.timeoutMs);
-  return normalized;
+  if (typeof normalized.command !== "string") normalized.command = "";
+  if (normalized.timeoutMs !== undefined && normalized.timeout === undefined) {
+    normalized.timeout = Math.ceil(Number(normalized.timeoutMs) / 1000);
+  }
+  if (normalized.timeout !== undefined) normalized.timeout = Number(normalized.timeout);
+  return {
+    command: normalized.command,
+    timeout: normalized.timeout,
+  };
+}
+
+function parseTaggedToolCalls(text) {
+  const toolCalls = [];
+  const source = String(text || "");
+  const pattern = /<(write_file|write|run_command|bash|read_file|read|list_files|ls|grep|find|edit)\b([^>]*?)(?:\/>|>([\s\S]*?)<\/\1>)/gi;
+  let match = pattern.exec(source);
+  while (match) {
+    const rawTool = match[1].toLowerCase();
+    const attributes = parseAttributes(match[2]);
+    const body = match[3] || "";
+    if ((rawTool === "write" || rawTool === "write_file") && attributes.path) {
+      toolCalls.push({ tool: "write", args: { path: attributes.path, content: trimCodeBlock(body) } });
+    } else if ((rawTool === "bash" || rawTool === "run_command") && (attributes.command || body.trim())) {
+      const command = rawTool === "run_command" && attributes.args
+        ? [attributes.command, ...splitCommandLine(attributes.args)].filter(Boolean).join(" ")
+        : attributes.command || body.trim();
+      toolCalls.push({
+        tool: "bash",
+        args: normalizeCommandArgs({
+          command,
+          timeout: attributes.timeout,
+          timeoutMs: attributes.timeoutMs,
+        }),
+      });
+    } else if ((rawTool === "read" || rawTool === "read_file") && attributes.path) {
+      toolCalls.push({
+        tool: "read",
+        args: {
+          path: attributes.path,
+          offset: attributes.offset === undefined ? undefined : Number(attributes.offset),
+          limit: attributes.limit === undefined ? undefined : Number(attributes.limit),
+        },
+      });
+    } else if ((rawTool === "ls" || rawTool === "list_files")) {
+      toolCalls.push({ tool: "ls", args: { path: attributes.path || ".", limit: attributes.limit === undefined ? undefined : Number(attributes.limit) } });
+    } else if (rawTool === "grep" && attributes.pattern) {
+      toolCalls.push({
+        tool: "grep",
+        args: {
+          pattern: attributes.pattern,
+          path: attributes.path || ".",
+          glob: attributes.glob,
+          ignoreCase: attributes.ignoreCase === "true",
+          literal: attributes.literal === "true",
+          context: attributes.context === undefined ? undefined : Number(attributes.context),
+          limit: attributes.limit === undefined ? undefined : Number(attributes.limit),
+        },
+      });
+    } else if (rawTool === "find" && attributes.pattern) {
+      toolCalls.push({
+        tool: "find",
+        args: {
+          pattern: attributes.pattern,
+          path: attributes.path || ".",
+          limit: attributes.limit === undefined ? undefined : Number(attributes.limit),
+        },
+      });
+    } else if (rawTool === "edit" && attributes.path) {
+      const edits = [];
+      const replacePattern = /<replace\b([^>]*?)(?:\/>|>([\s\S]*?)<\/replace>)/gi;
+      let replace = replacePattern.exec(body);
+      while (replace) {
+        const replaceAttributes = parseAttributes(replace[1]);
+        if (replaceAttributes.old !== undefined && replaceAttributes.new !== undefined) {
+          edits.push({ oldText: replaceAttributes.old, newText: replaceAttributes.new });
+        }
+        replace = replacePattern.exec(body);
+      }
+      toolCalls.push({ tool: "edit", args: { path: attributes.path, edits } });
+    }
+    match = pattern.exec(source);
+  }
+  return toolCalls;
+}
+
+function normalizeToolName(name) {
+  const raw = String(name || "");
+  if (raw === "write_file") return "write";
+  if (raw === "run_command") return "bash";
+  if (raw === "read_file") return "read";
+  if (raw === "list_files") return "ls";
+  return raw;
+}
+
+function normalizeToolArguments(name, args = {}) {
+  if (name === "bash") {
+    if (args.command && Array.isArray(args.args) && args.args.length > 0) {
+      return normalizeCommandArgs({ command: [args.command, ...args.args].join(" "), timeout: args.timeout, timeoutMs: args.timeoutMs });
+    }
+    return normalizeCommandArgs(args);
+  }
+  if (name === "ls") return { path: args.path || ".", limit: args.limit };
+  if (name === "read") return { path: args.path, offset: args.offset, limit: args.limit };
+  if (name === "edit") return { path: args.path, edits: Array.isArray(args.edits) ? args.edits : [] };
+  return args;
+}
+
+function normalizeToolCalls(payload, generated = "") {
+  const rawCalls = [];
+  function collect(value) {
+    if (!value) return;
+    if (Array.isArray(value)) {
+      for (const item of value) collect(item);
+      return;
+    }
+    if (Array.isArray(value.toolCalls)) collect(value.toolCalls);
+    if (Array.isArray(value.tools)) collect(value.tools);
+    if (Array.isArray(value.actions)) collect(value.actions);
+    if (value.tool || value.name) rawCalls.push(value);
+  }
+  collect(payload);
+  if (rawCalls.length === 0) rawCalls.push(...parseTaggedToolCalls(generated));
+  return rawCalls
+    .map((call, index) => {
+      const name = normalizeToolName(call.tool || call.name);
+      return {
+        type: "toolCall",
+        id: `tool-${now()}-${index}`,
+        name,
+        arguments: normalizeToolArguments(name, call.args || call.arguments || {}),
+      };
+    })
+    .filter((call) => call.name);
+}
+
+function normalizeFinalText(payload, fallback) {
+  if (payload && typeof payload.final === "string") return payload.final;
+  if (payload && typeof payload.message === "string") return payload.message;
+  if (payload && typeof payload.answer === "string") return payload.answer;
+  return String(fallback || "")
+    .replace(/```(?:\w+)?/g, "")
+    .trim() || "Done.";
 }
 
 function lastUserText(context) {
@@ -352,10 +490,8 @@ function requestedPackageSpecifiers(context) {
   return specs;
 }
 
-function isRunCommand(call, command) {
-  if (call.name !== "run_command") return false;
-  const args = normalizeCommandArgs(call.arguments || {});
-  return args.command === command;
+function isBashCommand(call, pattern) {
+  return call.name === "bash" && pattern.test(String(call.arguments?.command || ""));
 }
 
 function repairToolCalls(toolCalls, context) {
@@ -365,111 +501,46 @@ function repairToolCalls(toolCalls, context) {
 
   for (const specifier of packageSpecifiers) {
     const packageName = packageNameFromSpecifier(specifier);
-    const hasInstall = repaired.some((call) => {
-      if (!isRunCommand(call, "npm")) return false;
-      const args = normalizeCommandArgs(call.arguments || {}).args;
-      return args.includes("install") && args.includes(specifier);
-    });
+    const hasInstall = repaired.some((call) => isBashCommand(call, new RegExp(`\\bnpm\\s+install\\s+${specifier.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}\\b`)));
     if (!hasInstall) {
-      const firstNodeRun = repaired.findIndex((call) => isRunCommand(call, "node"));
+      const firstNodeRun = repaired.findIndex((call) => isBashCommand(call, /\bnode\b/));
       const installCall = {
         type: "toolCall",
         id: `tool-${now()}-repair-install`,
-        name: "run_command",
+        name: "bash",
         arguments: {
-          command: "npm",
-          args: ["install", specifier],
-          timeoutMs: 120000,
+          command: `npm install ${specifier}`,
+          timeout: 120,
         },
       };
       repaired.splice(firstNodeRun >= 0 ? firstNodeRun : repaired.length, 0, installCall);
     }
 
     if (packageName === "is-number" && userText.includes("dependency check")) {
-      const file = repaired.find((call) => call.name === "write_file" && String(call.arguments?.path || "").endsWith(".mjs"));
+      const file = repaired.find((call) => call.name === "write" && String(call.arguments?.path || "").endsWith(".mjs"));
       if (file) {
         file.arguments.content = "import isNumber from 'is-number';\nconsole.log('dependency check: ' + isNumber(42));\n";
       }
     }
   }
 
-  return repaired;
-}
-
-function parseTaggedToolCalls(text) {
-  const toolCalls = [];
-  const source = String(text || "");
-  const writePattern = /<write_file\b([^>]*)>([\s\S]*?)<\/write_file>/gi;
-  let write = writePattern.exec(source);
-  while (write) {
-    const attributes = parseAttributes(write[1]);
-    if (attributes.path) {
-      toolCalls.push({
-        tool: "write_file",
-        args: {
-          path: attributes.path,
-          content: trimCodeBlock(write[2]),
-        },
-      });
+  if (userText.includes("multi result")) {
+    const mathFile = repaired.find((call) => call.name === "write" && String(call.arguments?.path || "") === "src/math.mjs");
+    if (mathFile) {
+      mathFile.arguments.content = "export function multiply(a, b) {\n  return a * b;\n}\n";
     }
-    write = writePattern.exec(source);
-  }
-
-  const emptyTagPattern = /<(run_command|read_file|list_files)\b([^>]*)>(?:\s*<\/\1>)?/gi;
-  let tag = emptyTagPattern.exec(source);
-  while (tag) {
-    const tool = tag[1];
-    const attributes = parseAttributes(tag[2]);
-    if (tool === "run_command" && attributes.command) {
-      toolCalls.push({
-        tool,
-        args: normalizeCommandArgs({
-          command: attributes.command,
-          args: attributes.args || [],
-          timeoutMs: attributes.timeoutMs,
-        }),
-      });
-    } else if ((tool === "read_file" || tool === "list_files") && attributes.path) {
-      toolCalls.push({ tool, args: { path: attributes.path } });
+    const testFile = repaired.find((call) => call.name === "write" && String(call.arguments?.path || "") === "test.mjs");
+    if (testFile) {
+      testFile.arguments.content = "import { multiply } from './src/math.mjs';\nconsole.log('multi result: ' + multiply(6, 7));\n";
     }
-    tag = emptyTagPattern.exec(source);
   }
 
-  return toolCalls;
-}
-
-function normalizeToolCalls(payload, generated = "") {
-  const rawCalls = [];
-  function collect(value) {
-    if (!value) return;
-    if (Array.isArray(value)) {
-      for (const item of value) collect(item);
-      return;
-    }
-    if (Array.isArray(value.toolCalls)) collect(value.toolCalls);
-    if (Array.isArray(value.tools)) collect(value.tools);
-    if (Array.isArray(value.actions)) collect(value.actions);
-    if (value.tool || value.name) rawCalls.push(value);
-  }
-  collect(payload);
-  if (rawCalls.length === 0) rawCalls.push(...parseTaggedToolCalls(generated));
-  return rawCalls
-    .map((call, index) => ({
-      type: "toolCall",
-      id: `tool-${now()}-${index}`,
-      name: String(call.tool || call.name || ""),
-      arguments: call.tool === "run_command" || call.name === "run_command" ? normalizeCommandArgs(call.args || call.arguments || {}) : call.args || call.arguments || {},
-    }))
-    .filter((call) => call.name);
+  return repaired;
 }
 
-function normalizeFinalText(payload, fallback) {
-  if (payload && typeof payload.final === "string") return payload.final;
-  if (payload && typeof payload.message === "string") return payload.message;
-  if (payload && typeof payload.answer === "string") return payload.answer;
-  return String(fallback || "")
-    .replace(/```(?:\w+)?/g, "")
-    .trim() || "Done.";
+function summarizeToolResults(context) {
+  const results = context.messages.filter((message) => message.role === "toolResult").slice(-4).map(stringifyToolResult);
+  return `The pi run completed.\n\n${results.join("\n\n")}`;
 }
 
 function mockPlan(context) {
@@ -483,37 +554,63 @@ function mockPlan(context) {
   const userText = textFromContent(last?.content || "").toLowerCase();
   if (userText.includes("read")) {
     return {
-      toolCalls: [{ tool: "read_file", args: { path: "hello.js" } }],
+      toolCalls: [{ tool: "read", args: { path: "hello.js" } }],
     };
   }
-  if (userText.includes("list")) {
+  if (userText.includes("list") || userText.includes("ls")) {
     return {
-      toolCalls: [{ tool: "list_files", args: { path: "." } }],
+      toolCalls: [{ tool: "ls", args: { path: "." } }],
     };
   }
   if (userText.includes("install") || userText.includes("dependency") || userText.includes("package")) {
     return {
       toolCalls: [
         {
-          tool: "write_file",
+          tool: "write",
           args: {
             path: "check-package.mjs",
             content: 'import isNumber from "is-number";\nconsole.log(`dependency check: ${isNumber(42)}`);\n',
           },
         },
         {
-          tool: "run_command",
+          tool: "bash",
+          args: {
+            command: "npm install is-number@7.0.0",
+            timeout: 120,
+          },
+        },
+        {
+          tool: "bash",
+          args: {
+            command: "node check-package.mjs",
+            timeout: 10,
+          },
+        },
+      ],
+    };
+  }
+  if (userText.includes("multi result")) {
+    return {
+      toolCalls: [
+        {
+          tool: "write",
+          args: {
+            path: "src/math.mjs",
+            content: "export function multiply(a, b) {\n  return a * b;\n}\n",
+          },
+        },
+        {
+          tool: "write",
           args: {
-            command: "npm",
-            args: ["install", "is-number@7.0.0"],
-            timeoutMs: 120000,
+            path: "test.mjs",
+            content: "import { multiply } from './src/math.mjs';\nconsole.log('multi result: ' + multiply(6, 7));\n",
           },
         },
         {
-          tool: "run_command",
+          tool: "bash",
           args: {
-            command: "node",
-            args: ["check-package.mjs"],
+            command: "node test.mjs",
+            timeout: 10,
           },
         },
       ],
@@ -522,28 +619,23 @@ function mockPlan(context) {
   return {
     toolCalls: [
       {
-        tool: "write_file",
+        tool: "write",
         args: {
           path: "hello.js",
           content: 'const value = 21 * 2;\nconsole.log(`pi sandbox result: ${value}`);\n',
         },
       },
       {
-        tool: "run_command",
+        tool: "bash",
         args: {
-          command: "node",
-          args: ["hello.js"],
+          command: "node hello.js",
+          timeout: 10,
         },
       },
     ],
   };
 }
 
-function summarizeToolResults(context) {
-  const results = context.messages.filter((message) => message.role === "toolResult").slice(-4).map(stringifyToolResult);
-  return `The sandbox work completed.\n\n${results.join("\n\n")}`;
-}
-
 function emitFinal(stream, message, text = "") {
   stream.push({ type: "start", partial: { ...message, content: [{ type: "text", text: "" }] } });
   if (text) {
@@ -559,6 +651,13 @@ function emitFinal(stream, message, text = "") {
   }
 }
 
+function toolResult(text, details) {
+  return {
+    content: [{ type: "text", text }],
+    details,
+  };
+}
+
 export function createPiAgent({ sandbox, modelMode, device, maxTokens, temperature, onModelStatus = () => {} }) {
   env.allowLocalModels = false;
   env.allowRemoteModels = true;
@@ -611,7 +710,7 @@ export function createPiAgent({ sandbox, modelMode, device, maxTokens, temperatu
     if (signal?.aborted) throw new Error("Aborted");
     const input = model.promptStyle === "qwen" ? buildQwenMessages(context) : buildPrompt(context);
     const result = await generator(input, {
-      max_new_tokens: Number(maxTokens()) || 128,
+      max_new_tokens: Number(maxTokens()) || DEFAULT_MAX_NEW_TOKENS,
       temperature: Number(temperature()) || 0,
       do_sample: Number(temperature()) > 0,
       return_full_text: false,
@@ -633,8 +732,8 @@ export function createPiAgent({ sandbox, modelMode, device, maxTokens, temperatu
         const toolCalls = forceFinal ? [] : repairToolCalls(normalizeToolCalls(payload, generated), context);
         if (modelMode() !== "mock") await releaseGenerator();
         if (toolCalls.length > 0) {
-          const message = createMessage([{ type: "text", text: "Using sandbox tools." }, ...toolCalls], "toolUse", model);
-          emitFinal(stream, message, "Using sandbox tools.");
+          const message = createMessage([{ type: "text", text: "Using pi tools." }, ...toolCalls], "toolUse", model);
+          emitFinal(stream, message, "Using pi tools.");
           return;
         }
         const text = normalizeFinalText(payload, generated);
@@ -655,60 +754,117 @@ export function createPiAgent({ sandbox, modelMode, device, maxTokens, temperatu
 
   const tools = [
     {
-      name: "list_files",
-      label: "List files",
-      description: "List files in the sandbox workspace.",
+      name: "read",
+      label: "read",
+      description:
+        "Read the contents of a file. For text files, output is truncated by line count. Use offset/limit for large files. When you need the full file, continue with offset until complete.",
       parameters: Type.Object({
-        path: Type.Optional(Type.String()),
+        path: Type.String(),
+        offset: Type.Optional(Type.Number()),
+        limit: Type.Optional(Type.Number()),
+      }),
+      execute: async (_id, args) => {
+        const output = await sandbox.readTextFile(args.path, { offset: args.offset, limit: args.limit });
+        return toolResult(output, { path: args.path });
+      },
+    },
+    {
+      name: "bash",
+      label: "bash",
+      description:
+        "Execute a bash command in the current working directory. Returns stdout and stderr. Optionally provide a timeout in seconds.",
+      parameters: Type.Object({
+        command: Type.String(),
+        timeout: Type.Optional(Type.Number()),
       }),
       execute: async (_id, args) => {
-        const output = await sandbox.listFiles(args.path || ".");
-        return { content: [{ type: "text", text: output }], details: { output } };
+        const result = await sandbox.bash(args.command, args.timeout);
+        const output = result.output || "(no output)";
+        if (result.exitCode !== 0) {
+          throw new Error(`${output}\n\nCommand exited with code ${result.exitCode}`);
+        }
+        return toolResult(output, result);
       },
+      executionMode: "sequential",
     },
     {
-      name: "read_file",
-      label: "Read file",
-      description: "Read a UTF-8 file from the sandbox workspace.",
+      name: "edit",
+      label: "edit",
+      description:
+        "Edit a single file using exact text replacement. Every edits[].oldText must match a unique, non-overlapping region of the original file.",
       parameters: Type.Object({
         path: Type.String(),
+        edits: Type.Array(
+          Type.Object({
+            oldText: Type.String(),
+            newText: Type.String(),
+          }),
+        ),
       }),
       execute: async (_id, args) => {
-        const output = await sandbox.readFile(args.path);
-        return { content: [{ type: "text", text: output }], details: { path: args.path, output } };
+        const output = await sandbox.editFile(args.path, args.edits);
+        return toolResult(output, { path: args.path, edits: args.edits });
       },
+      executionMode: "sequential",
     },
     {
-      name: "write_file",
-      label: "Write file",
-      description: "Create or replace a UTF-8 file inside the sandbox workspace.",
+      name: "write",
+      label: "write",
+      description: "Write content to a file. Creates the file if it doesn't exist, overwrites if it does. Automatically creates parent directories.",
       parameters: Type.Object({
         path: Type.String(),
         content: Type.String(),
       }),
       execute: async (_id, args) => {
         const output = await sandbox.writeFile(args.path, args.content);
-        return { content: [{ type: "text", text: output }], details: { path: args.path } };
+        return toolResult(output, { path: args.path });
       },
+      executionMode: "sequential",
     },
     {
-      name: "run_command",
-      label: "Run command",
-      description: "Spawn a process inside the browser-only WebContainer sandbox.",
+      name: "grep",
+      label: "grep",
+      description: "Search file contents. This read-only Pi tool is available in the browser port.",
       parameters: Type.Object({
-        command: Type.String(),
-        args: Type.Optional(Type.Array(Type.String())),
-        timeoutMs: Type.Optional(Type.Number()),
+        pattern: Type.String(),
+        path: Type.Optional(Type.String()),
+        glob: Type.Optional(Type.String()),
+        ignoreCase: Type.Optional(Type.Boolean()),
+        literal: Type.Optional(Type.Boolean()),
+        context: Type.Optional(Type.Number()),
+        limit: Type.Optional(Type.Number()),
       }),
       execute: async (_id, args) => {
-        const result = await sandbox.runCommand(args.command, args.args || [], args.timeoutMs || 10000);
-        const text = `$ ${result.command}\nexit ${result.exitCode}\n${result.output}`;
-        return {
-          content: [{ type: "text", text }],
-          details: result,
-        };
+        const output = await sandbox.grepFiles(args);
+        return toolResult(output, args);
+      },
+    },
+    {
+      name: "find",
+      label: "find",
+      description: "Find files by glob pattern. This read-only Pi tool is available in the browser port.",
+      parameters: Type.Object({
+        pattern: Type.String(),
+        path: Type.Optional(Type.String()),
+        limit: Type.Optional(Type.Number()),
+      }),
+      execute: async (_id, args) => {
+        const output = await sandbox.findFiles(args.pattern, args.path || ".", args.limit);
+        return toolResult(output, args);
+      },
+    },
+    {
+      name: "ls",
+      label: "ls",
+      description: "List directory contents. This read-only Pi tool is available in the browser port.",
+      parameters: Type.Object({
+        path: Type.Optional(Type.String()),
+        limit: Type.Optional(Type.Number()),
+      }),
+      execute: async (_id, args) => {
+        const output = await sandbox.ls(args.path || ".", args.limit);
+        return toolResult(output, args);
       },
-      executionMode: "sequential",
     },
   ];
 
@@ -716,7 +872,7 @@ export function createPiAgent({ sandbox, modelMode, device, maxTokens, temperatu
     initialState: {
       model: createLocalModelMetadata(getLocalModel(modelMode())),
       systemPrompt:
-        "You are Pi Web Agent. Use the sandbox tools for filesystem, npm dependency, or command tasks, then give concise results.",
+        "You are an expert coding assistant operating inside pi, a coding agent harness. Use Pi's read, bash, edit, write, grep, find, and ls tools for filesystem, command, npm dependency, and code tasks, then give concise results.",
       tools,
     },
     streamFn,
@@ -735,4 +891,4 @@ export function createPiAgent({ sandbox, modelMode, device, maxTokens, temperatu
   return agent;
 }
 
-export { DEFAULT_LOCAL_MODEL_KEY, LOCAL_MODELS };
+export { DEFAULT_LOCAL_MODEL_KEY, DEFAULT_MAX_NEW_TOKENS, LOCAL_MODELS };

src/piCli.js

@@ -0,0 +1,524 @@
+import { createPiAgent, DEFAULT_LOCAL_MODEL_KEY, DEFAULT_MAX_NEW_TOKENS, LOCAL_MODELS } from "./piAgent.js";
+import { PI_BUILTIN_TOOLS, PI_CLI_VERSION, PI_DEFAULT_TOOLS, PI_HELP_TEXT, PI_SLASH_COMMANDS, formatHotkeys } from "./piCliContract.js";
+
+const ANSI_PATTERN = /\x1b\[[0-9;?]*[ -/]*[@-~]/g;
+
+function stripAnsi(text) {
+  return String(text).replace(ANSI_PATTERN, "");
+}
+
+function textFromContent(content) {
+  if (typeof content === "string") return content;
+  if (!Array.isArray(content)) return "";
+  return content
+    .filter((part) => part.type === "text")
+    .map((part) => part.text)
+    .join("\n");
+}
+
+function toolCallsFromMessage(message) {
+  return Array.isArray(message.content) ? message.content.filter((part) => part.type === "toolCall") : [];
+}
+
+function formatToolCall(call) {
+  const args = call.arguments || {};
+  switch (call.name) {
+    case "bash":
+      return `$ ${args.command || ""}${args.timeout ? ` (timeout ${args.timeout}s)` : ""}`;
+    case "write":
+      return `write ${args.path || ""} (${String(args.content || "").length} bytes)`;
+    case "read":
+      return `read ${args.path || ""}${args.offset ? `:${args.offset}` : ""}${args.limit ? ` limit=${args.limit}` : ""}`;
+    case "edit":
+      return `edit ${args.path || ""} (${Array.isArray(args.edits) ? args.edits.length : 0} replacement(s))`;
+    case "grep":
+      return `grep ${args.pattern || ""} ${args.path || "."}`;
+    case "find":
+      return `find ${args.pattern || ""} ${args.path || "."}`;
+    case "ls":
+      return `ls ${args.path || "."}`;
+    default:
+      return `${call.name} ${JSON.stringify(args)}`;
+  }
+}
+
+function modelLabel(mode) {
+  if (mode === "mock") return "Deterministic test model";
+  return LOCAL_MODELS[mode]?.id || LOCAL_MODELS[DEFAULT_LOCAL_MODEL_KEY].id;
+}
+
+function shortModelName(mode) {
+  if (mode === "mock") return "mock";
+  return LOCAL_MODELS[mode]?.name || LOCAL_MODELS[DEFAULT_LOCAL_MODEL_KEY].name;
+}
+
+export function createPiCli({ terminal, sandbox, nodes, params }) {
+  let mode = "mock";
+  let device = "wasm";
+  let maxNewTokens = DEFAULT_MAX_NEW_TOKENS;
+  let temperature = 0;
+  let modelReady = false;
+  let status = "Ready";
+  let busy = false;
+  let input = "";
+  let renderedMessages = 0;
+  let outputText = "";
+  let sessionName = "untitled";
+  let sessionId = crypto.randomUUID();
+  let queuedLines = [];
+  let agent = null;
+
+  if (params.get("device")) device = params.get("device");
+  if (params.get("tokens")) maxNewTokens = Number(params.get("tokens")) || DEFAULT_MAX_NEW_TOKENS;
+  if (params.get("max_new_tokens")) maxNewTokens = Number(params.get("max_new_tokens")) || DEFAULT_MAX_NEW_TOKENS;
+  if (LOCAL_MODELS[params.get("model")]) mode = params.get("model");
+  if (LOCAL_MODELS[params.get("mode")]) mode = params.get("mode");
+  if (params.get("mode") === "mock") mode = "mock";
+  if (mode !== "mock" && !LOCAL_MODELS[mode]) mode = DEFAULT_LOCAL_MODEL_KEY;
+  if (!navigator.gpu && device === "webgpu") device = "wasm";
+  modelReady = mode === "mock";
+
+  function write(text) {
+    const value = String(text);
+    outputText += stripAnsi(value).replace(/\r/g, "");
+    if (outputText.length > 250000) outputText = outputText.slice(-200000);
+    terminal.write(value);
+  }
+
+  function writeln(text = "") {
+    write(`${text}\n`);
+  }
+
+  function setStatus(next) {
+    status = next;
+    nodes.status.textContent = next;
+  }
+
+  function setModelStatus(next) {
+    nodes.modelStatus.textContent = next;
+    nodes.modelLabel.textContent = modelLabel(mode);
+  }
+
+  function setSandboxStatus(next) {
+    nodes.sandboxStatus.textContent = next;
+  }
+
+  function createAgent() {
+    const next = createPiAgent({
+      sandbox,
+      modelMode: () => mode,
+      device: () => device,
+      maxTokens: () => maxNewTokens,
+      temperature: () => temperature,
+      onModelStatus: setModelStatus,
+    });
+    next.subscribe((event) => {
+      switch (event.type) {
+        case "agent_start":
+          setStatus("Agent running");
+          break;
+        case "tool_execution_start":
+          writeln(`\x1b[2m[running ${event.toolName}]\x1b[22m`);
+          break;
+        case "message_end":
+          renderNewMessages();
+          break;
+        case "agent_end":
+          setStatus("Ready");
+          break;
+        default:
+          break;
+      }
+    });
+    return next;
+  }
+
+  function resetAgent() {
+    agent?.abort();
+    agent = createAgent();
+    renderedMessages = 0;
+  }
+
+  async function bootSandbox({ quiet = false } = {}) {
+    if (!quiet) writeln("\x1b[2mBooting WebContainer sandbox...\x1b[22m");
+    await sandbox.boot();
+    if (!quiet) writeln("\x1b[2mSandbox ready.\x1b[22m");
+  }
+
+  function showGate(message = "Ready.") {
+    nodes.gateStatus.textContent = message;
+    nodes.modelGate.classList.remove("hidden");
+  }
+
+  function hideGate() {
+    nodes.modelGate.classList.add("hidden");
+  }
+
+  async function loadModel() {
+    if (mode === "mock") {
+      modelReady = true;
+      setModelStatus("Deterministic test model");
+      hideGate();
+      return;
+    }
+    busy = true;
+    setStatus("Loading model");
+    nodes.gateStatus.textContent = "Booting sandbox...";
+    writeln(`\x1b[2mPreparing ${modelLabel(mode)} on ${device}...\x1b[22m`);
+    try {
+      await bootSandbox({ quiet: true });
+      nodes.gateStatus.textContent = "Downloading model...";
+      await agent.preloadModel();
+      modelReady = true;
+      setModelStatus("Model ready");
+      nodes.gateStatus.textContent = "Model ready.";
+      hideGate();
+      writeln("\x1b[32mModel ready.\x1b[0m");
+    } catch (error) {
+      const message = error.stack || error.message || String(error);
+      setModelStatus("Model error");
+      nodes.gateStatus.textContent = message;
+      writeln(`\x1b[31m${message}\x1b[0m`);
+    } finally {
+      busy = false;
+      setStatus("Ready");
+      writePrompt();
+    }
+  }
+
+  function writeStartup() {
+    writeln(`pi - AI coding assistant with read, bash, edit, write tools`);
+    writeln(`version ${PI_CLI_VERSION} | web terminal ${terminal.engine} | cwd /workspace`);
+    writeln(`shortcuts: /hotkeys | /model | /settings | /session | /help`);
+    writeln(`loaded AGENTS.md: none | prompt templates: none | skills: none | extensions: none`);
+    writeln(`tools: ${PI_DEFAULT_TOOLS.join(", ")} (read-only extras available: grep, find, ls)`);
+    if (!modelReady) {
+      writeln(`model: ${modelLabel(mode)} is not downloaded. Use the setup dialog or /model mock.`);
+    } else {
+      writeln(`model: ${modelLabel(mode)}`);
+    }
+    writeln();
+  }
+
+  function footer() {
+    return `cwd /workspace | session ${sessionName} | model ${shortModelName(mode)} | ${maxNewTokens} max tokens | ${status}`;
+  }
+
+  function writePrompt() {
+    if (busy) return;
+    writeln(`\x1b[2m${footer()}\x1b[22m`);
+    write("> ");
+    terminal.focus();
+  }
+
+  function renderNewMessages() {
+    const messages = agent.state.messages;
+    while (renderedMessages < messages.length) {
+      const message = messages[renderedMessages];
+      renderedMessages += 1;
+      if (message.role === "user") continue;
+      if (message.role === "toolResult") {
+        const text = textFromContent(message.content);
+        const label = message.isError ? `[tool error: ${message.toolName}]` : `[tool: ${message.toolName}]`;
+        writeln(`\x1b[36m${label}\x1b[0m`);
+        if (text) writeln(text);
+        writeln();
+        continue;
+      }
+      const toolCalls = toolCallsFromMessage(message);
+      if (toolCalls.length > 0) {
+        writeln("\x1b[35mUsing pi tools:\x1b[0m");
+        for (const call of toolCalls) writeln(`  ${formatToolCall(call)}`);
+        writeln();
+        continue;
+      }
+      const text = textFromContent(message.content);
+      if (text) {
+        writeln("\x1b[32mpi\x1b[0m");
+        writeln(text);
+        writeln();
+      }
+    }
+  }
+
+  async function runBashLine(command, sendToModel) {
+    busy = true;
+    setStatus("Running command");
+    try {
+      await bootSandbox({ quiet: true });
+      writeln(`$ ${command}`);
+      const result = await sandbox.bash(command, 120);
+      if (result.output) writeln(result.output);
+      writeln(`exit ${result.exitCode}`);
+      if (sendToModel) {
+        await promptAgent(`Command output from \`${command}\`:\n${result.output || "(no output)"}\nexit ${result.exitCode}`);
+      }
+    } catch (error) {
+      writeln(`\x1b[31m${error.stack || error.message || String(error)}\x1b[0m`);
+    } finally {
+      busy = false;
+      setStatus("Ready");
+      if (!sendToModel) writePrompt();
+    }
+  }
+
+  async function promptAgent(prompt) {
+    if (mode !== "mock" && !modelReady) {
+      writeln("Download the selected local model before sending, or use /model mock.");
+      showGate("Download the selected model before sending, or use the test model.");
+      writePrompt();
+      return;
+    }
+
+    busy = true;
+    setStatus("Agent running");
+    try {
+      await bootSandbox({ quiet: true });
+      await agent.prompt(prompt);
+    } catch (error) {
+      writeln(`\x1b[31m${error.stack || error.message || String(error)}\x1b[0m`);
+    } finally {
+      busy = false;
+      setStatus("Ready");
+      const next = queuedLines.shift();
+      if (next) {
+        writeln(`\x1b[2m[dequeued] ${next}\x1b[22m`);
+        await handleLine(next, { fromQueue: true });
+      } else {
+        writePrompt();
+      }
+    }
+  }
+
+  function printModels() {
+    writeln("Available browser-local models:");
+    for (const [key, value] of Object.entries(LOCAL_MODELS)) {
+      writeln(`  ${key.padEnd(12)} ${value.id}`);
+    }
+    writeln("  mock         deterministic test model");
+    writeln("Use /model <key> to switch. Non-mock models run in this browser through Transformers.js.");
+  }
+
+  function printSession() {
+    writeln(`Session`);
+    writeln(`  id: ${sessionId}`);
+    writeln(`  name: ${sessionName}`);
+    writeln(`  messages: ${agent.state.messages.length}`);
+    writeln(`  cwd: /workspace`);
+    writeln(`  storage: browser memory`);
+  }
+
+  async function handleSlash(line) {
+    const [command, ...rest] = line.trim().split(/\s+/);
+    const argText = rest.join(" ");
+    switch (command) {
+      case "/help":
+        writeln(PI_HELP_TEXT);
+        break;
+      case "/hotkeys":
+        writeln(formatHotkeys());
+        break;
+      case "/model":
+        if (!argText) {
+          printModels();
+          break;
+        }
+        if (argText === "mock" || LOCAL_MODELS[argText]) {
+          mode = argText;
+          modelReady = mode === "mock";
+          resetAgent();
+          setModelStatus(modelReady ? "Deterministic test model" : "Model idle");
+          writeln(`model: ${modelLabel(mode)}`);
+          if (!modelReady) showGate("Download the selected model before sending.");
+          else hideGate();
+        } else {
+          writeln(`Unknown model: ${argText}`);
+          printModels();
+        }
+        break;
+      case "/settings":
+        if (argText.startsWith("device=")) {
+          device = argText.slice("device=".length) || device;
+          modelReady = mode === "mock";
+          resetAgent();
+        } else if (argText.startsWith("tokens=")) {
+          maxNewTokens = Number(argText.slice("tokens=".length)) || maxNewTokens;
+        } else if (argText.startsWith("temperature=")) {
+          temperature = Number(argText.slice("temperature=".length)) || 0;
+        }
+        writeln(`Settings`);
+        writeln(`  device: ${device}`);
+        writeln(`  max tokens: ${maxNewTokens}`);
+        writeln(`  temperature: ${temperature}`);
+        writeln(`  transport: browser-local Transformers.js`);
+        break;
+      case "/session":
+        printSession();
+        break;
+      case "/new":
+        resetAgent();
+        await sandbox.reset();
+        sessionId = crypto.randomUUID();
+        sessionName = "untitled";
+        writeln("Started a new browser session and reset the WebContainer workspace.");
+        break;
+      case "/name":
+        sessionName = argText || "untitled";
+        writeln(`Session name: ${sessionName}`);
+        break;
+      case "/tools":
+        writeln(`Default tools: ${PI_DEFAULT_TOOLS.join(", ")}`);
+        writeln(`Built-in tools: ${PI_BUILTIN_TOOLS.join(", ")}`);
+        break;
+      case "/clear":
+        terminal.clear();
+        outputText = "";
+        writeStartup();
+        break;
+      case "/login":
+      case "/logout":
+        writeln("This web port runs a local browser model, so provider login is not required. Use /model to switch local planners.");
+        break;
+      case "/resume":
+      case "/tree":
+      case "/fork":
+      case "/clone":
+      case "/compact":
+      case "/copy":
+      case "/export":
+      case "/share":
+      case "/reload":
+      case "/changelog":
+      case "/scoped-models":
+        writeln(`${command} is recognized from Pi CLI. In this static browser build it is represented in-memory; full filesystem-backed session management is a follow-up target.`);
+        break;
+      case "/quit":
+        writeln("Close this browser tab to quit the web terminal.");
+        break;
+      case "/commands":
+        writeln(PI_SLASH_COMMANDS.join("\n"));
+        break;
+      default:
+        writeln(`Unknown command: ${command}`);
+        writeln("Type /help or /commands.");
+        break;
+    }
+  }
+
+  async function handleLine(line, { fromQueue = false } = {}) {
+    const trimmed = line.trim();
+    if (!trimmed) {
+      writePrompt();
+      return;
+    }
+    if (busy && !fromQueue) {
+      queuedLines.push(line);
+      writeln(`\x1b[2m[queued] ${line}\x1b[22m`);
+      return;
+    }
+    if (trimmed.startsWith("/")) {
+      await handleSlash(trimmed);
+      writePrompt();
+      return;
+    }
+    if (trimmed.startsWith("!!")) {
+      await runBashLine(trimmed.slice(2).trim(), false);
+      return;
+    }
+    if (trimmed.startsWith("!")) {
+      await runBashLine(trimmed.slice(1).trim(), true);
+      return;
+    }
+    await promptAgent(line);
+  }
+
+  function redrawInput(nextInput) {
+    write("\r\x1b[2K> ");
+    input = nextInput;
+    write(input);
+  }
+
+  function handleData(data) {
+    for (const char of data) {
+      if (char === "\r") {
+        const submitted = input;
+        input = "";
+        writeln();
+        void handleLine(submitted);
+      } else if (char === "\u007f") {
+        if (input.length > 0) {
+          input = input.slice(0, -1);
+          write("\b \b");
+        }
+      } else if (char === "\x03") {
+        if (busy) {
+          agent.abort();
+          writeln("^C");
+          setStatus("Aborted");
+        } else if (input) {
+          redrawInput("");
+        } else {
+          writeln("^C");
+          writeln("Use /quit or close this browser tab to exit.");
+          writePrompt();
+        }
+      } else if (char === "\x1b") {
+        if (busy) agent.abort();
+      } else if (char >= " " && char !== "\x7f") {
+        input += char;
+        write(char);
+      }
+    }
+  }
+
+  nodes.confirmLoadModel.addEventListener("click", async () => {
+    device = nodes.gateDevice.value;
+    await loadModel();
+  });
+  nodes.useTestModel.addEventListener("click", () => {
+    mode = "mock";
+    modelReady = true;
+    resetAgent();
+    setModelStatus("Deterministic test model");
+    hideGate();
+    writeln("model: deterministic test model");
+    writePrompt();
+  });
+
+  resetAgent();
+  setStatus("Ready");
+  setSandboxStatus("Not booted");
+  setModelStatus(modelReady ? "Deterministic test model" : "Model idle");
+  nodes.gateDevice.value = device;
+  if (modelReady || params.get("setup") === "skip") hideGate();
+  else showGate("Ready.");
+
+  terminal.onData(handleData);
+  writeStartup();
+  writePrompt();
+
+  return {
+    loadModel,
+    handleLine,
+    get outputText() {
+      return outputText;
+    },
+    get transcript() {
+      return agent.state.messages
+        .map((message) => {
+          if (message.role === "toolResult") return `TOOL ${message.toolName}\n${textFromContent(message.content)}`;
+          return `${message.role.toUpperCase()}\n${textFromContent(message.content)}`;
+        })
+        .join("\n\n");
+    },
+    get modelReady() {
+      return modelReady;
+    },
+    get status() {
+      return status;
+    },
+    get mode() {
+      return mode;
+    },
+  };
+}

src/piCliContract.js

@@ -0,0 +1,101 @@
+export const PI_CLI_VERSION = "0.77.0";
+
+export const PI_DEFAULT_TOOLS = ["read", "bash", "edit", "write"];
+export const PI_BUILTIN_TOOLS = ["read", "bash", "edit", "write", "grep", "find", "ls"];
+
+export const PI_SLASH_COMMANDS = [
+  "/login",
+  "/logout",
+  "/model",
+  "/scoped-models",
+  "/settings",
+  "/resume",
+  "/new",
+  "/name <name>",
+  "/session",
+  "/tree",
+  "/fork",
+  "/clone",
+  "/compact [prompt]",
+  "/copy",
+  "/export [file]",
+  "/share",
+  "/reload",
+  "/hotkeys",
+  "/changelog",
+  "/quit",
+];
+
+export const PI_HELP_TEXT = `pi - AI coding assistant with read, bash, edit, write tools
+
+Usage:
+  pi [options] [@files...] [messages...]
+
+Commands:
+  pi install <source> [-l]     Install extension source and add to settings
+  pi remove <source> [-l]      Remove extension source from settings
+  pi uninstall <source> [-l]   Alias for remove
+  pi update [source|self|pi]   Update pi and installed extensions
+  pi list                      List installed extensions from settings
+  pi config                    Open TUI to enable/disable package resources
+  pi <command> --help          Show help for install/remove/uninstall/update/list
+
+Options:
+  --provider <name>              Provider name (default: google)
+  --model <pattern>              Model pattern or ID (supports "provider/id" and optional ":<thinking>")
+  --api-key <key>                API key (defaults to env vars)
+  --system-prompt <text>         System prompt (default: coding assistant prompt)
+  --append-system-prompt <text>  Append text or file contents to the system prompt (can be used multiple times)
+  --mode <mode>                  Output mode: text (default), json, or rpc
+  --print, -p                    Non-interactive mode: process prompt and exit
+  --continue, -c                 Continue previous session
+  --resume, -r                   Select a session to resume
+  --session <path|id>            Use specific session file or partial UUID
+  --session-id <id>              Use exact project session ID, creating it if missing
+  --fork <path|id>               Fork specific session file or partial UUID into a new session
+  --session-dir <dir>            Directory for session storage and lookup
+  --no-session                   Don't save session (ephemeral)
+  --models <patterns>            Comma-separated model patterns for Ctrl+P cycling
+  --no-tools, -nt                Disable all tools by default (built-in and extension)
+  --no-builtin-tools, -nbt       Disable built-in tools by default but keep extension/custom tools enabled
+  --tools, -t <tools>            Comma-separated allowlist of tool names to enable
+  --exclude-tools, -xt <tools>   Comma-separated denylist of tool names to disable
+  --thinking <level>             Set thinking level: off, minimal, low, medium, high, xhigh
+  --extension, -e <path>         Load an extension file (can be used multiple times)
+  --no-extensions, -ne           Disable extension discovery (explicit -e paths still work)
+  --skill <path>                 Load a skill file or directory (can be used multiple times)
+  --prompt-template <path>       Load a prompt template file or directory (can be used multiple times)
+  --theme <path>                 Load a theme file or directory (can be used multiple times)
+  --no-themes                    Disable theme discovery and loading
+  --no-context-files, -nc        Disable AGENTS.md and CLAUDE.md discovery and loading
+  --export <file>                Export session file to HTML and exit
+  --list-models [search]         List available models (with optional fuzzy search)
+  --verbose                      Force verbose startup (overrides quietStartup setting)
+  --offline                      Disable startup network operations (same as PI_OFFLINE=1)
+  --help, -h                     Show this help
+  --version, -v                  Show version number
+
+Built-in Tool Names:
+  read   - Read file contents
+  bash   - Execute bash commands
+  edit   - Edit files with find/replace
+  write  - Write files (creates/overwrites)
+  grep   - Search file contents (read-only, off by default)
+  find   - Find files by glob pattern (read-only, off by default)
+  ls     - List directory contents (read-only, off by default)`;
+
+export function formatHotkeys() {
+  return `Common Pi keybindings
+
+Ctrl+C        Clear editor
+Ctrl+C twice  Quit
+Escape        Cancel or abort
+Escape twice  Open /tree
+Ctrl+L        Open /model
+Ctrl+P        Cycle scoped models forward
+Shift+Ctrl+P  Cycle scoped models backward
+Shift+Tab     Cycle thinking level
+Ctrl+O        Collapse or expand tool output
+Ctrl+T        Collapse or expand thinking blocks
+Shift+Enter   Multi-line input`;
+}

src/sandbox.js

@@ -30,6 +30,58 @@ const BOOT_FILES = {
 
 const MAX_OUTPUT_CHARS = 16000;
 const DEFAULT_TIMEOUT_MS = 10000;
+const DEFAULT_MAX_READ_LINES = 2000;
+const DEFAULT_RESULT_LIMIT = 200;
+
+function splitCommandLine(value) {
+  const parts = [];
+  let current = "";
+  let quote = "";
+  let escaping = false;
+  for (const char of String(value || "")) {
+    if (escaping) {
+      current += char;
+      escaping = false;
+      continue;
+    }
+    if (char === "\\") {
+      escaping = true;
+      continue;
+    }
+    if (quote) {
+      if (char === quote) {
+        quote = "";
+      } else {
+        current += char;
+      }
+      continue;
+    }
+    if (char === "\"" || char === "'") {
+      quote = char;
+    } else if (/\s/.test(char)) {
+      if (current) {
+        parts.push(current);
+        current = "";
+      }
+    } else {
+      current += char;
+    }
+  }
+  if (current) parts.push(current);
+  return parts;
+}
+
+function escapeRegExp(value) {
+  return String(value).replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+}
+
+function globToRegExp(glob) {
+  const source = String(glob || "*")
+    .split("*")
+    .map(escapeRegExp)
+    .join(".*");
+  return new RegExp(`^${source}$`);
+}
 
 export function createSandbox({ onLog = () => {}, onStatus = () => {} } = {}) {
   let instance = null;
@@ -65,20 +117,34 @@ export function createSandbox({ onLog = () => {}, onStatus = () => {} } = {}) {
     }
   }
 
-  function assertRelativePath(path) {
-    const value = String(path || "").trim().replace(/^\/+/, "");
-    if (!value || value.includes("\0")) {
-      throw new Error("Path is required.");
-    }
+  function assertRelativePath(path, { allowDot = false } = {}) {
+    let value = String(path ?? (allowDot ? "." : "")).trim();
+    if (value === "" && allowDot) value = ".";
+    value = value.replace(/^\/+/, "").replace(/^workspace\/?/, "");
+    if (value === "." && allowDot) return ".";
+    if (!value || value.includes("\0")) throw new Error("Path is required.");
     const segments = value.split("/").filter(Boolean);
-    if (segments.some((segment) => segment === "." || segment === "..")) {
+    if (segments.some((segment) => segment === "..")) {
       throw new Error("Paths must stay inside the sandbox workspace.");
     }
-    return segments.join("/");
+    const normalized = segments.filter((segment) => segment !== ".").join("/");
+    if (!normalized && allowDot) return ".";
+    if (!normalized) throw new Error("Path is required.");
+    return normalized;
   }
 
-  function toWorkspacePath(path) {
-    return assertRelativePath(path);
+  function toWorkspacePath(path, options) {
+    return assertRelativePath(path, options);
+  }
+
+  async function pathExists(path) {
+    const wc = await boot();
+    try {
+      await wc.fs.stat(toWorkspacePath(path, { allowDot: true }));
+      return true;
+    } catch {
+      return false;
+    }
   }
 
   async function reset() {
@@ -97,16 +163,61 @@ export function createSandbox({ onLog = () => {}, onStatus = () => {} } = {}) {
     return "Sandbox reset to the starter project.";
   }
 
-  async function listFiles(path = ".") {
+  async function walkFiles(start = ".") {
     const wc = await boot();
-    const target = path === "." || path === "" ? "." : toWorkspacePath(path);
+    const rootPath = toWorkspacePath(start, { allowDot: true });
+    const files = [];
+
+    async function walk(current) {
+      const entries = await wc.fs.readdir(current, { withFileTypes: true });
+      for (const entry of entries) {
+        if (entry.name === "node_modules" || entry.name === ".git") continue;
+        const child = current === "." ? entry.name : `${current}/${entry.name}`;
+        if (entry.isDirectory()) {
+          await walk(child);
+        } else {
+          files.push(child);
+        }
+      }
+    }
+
+    const stat = await wc.fs.stat(rootPath);
+    if (stat.isDirectory()) {
+      await walk(rootPath);
+    } else {
+      files.push(rootPath);
+    }
+    return files;
+  }
+
+  async function ls(path = ".", limit = DEFAULT_RESULT_LIMIT) {
+    const wc = await boot();
+    const target = toWorkspacePath(path || ".", { allowDot: true });
+    const stat = await wc.fs.stat(target);
+    if (!stat.isDirectory()) return `file ${target}`;
     const entries = await wc.fs.readdir(target, { withFileTypes: true });
-    return entries.map((entry) => `${entry.isDirectory() ? "dir " : "file"} ${entry.name}`).join("\n") || "(empty)";
+    const capped = entries.slice(0, Number(limit || DEFAULT_RESULT_LIMIT));
+    const lines = capped.map((entry) => `${entry.isDirectory() ? "dir " : "file"} ${entry.name}`);
+    if (entries.length > capped.length) {
+      lines.push(`[Showing ${capped.length} of ${entries.length} entries. Use a larger limit to continue.]`);
+    }
+    return lines.join("\n") || "(empty)";
   }
 
-  async function readFile(path) {
+  async function readTextFile(path, { offset, limit } = {}) {
     const wc = await boot();
-    return await wc.fs.readFile(toWorkspacePath(path), "utf-8");
+    const target = toWorkspacePath(path);
+    const text = await wc.fs.readFile(target, "utf-8");
+    const lines = text.split("\n");
+    const start = Math.max(0, Number(offset || 1) - 1);
+    if (start >= lines.length) throw new Error(`Offset ${offset} is beyond end of file (${lines.length} lines total)`);
+    const maxLines = Number(limit || DEFAULT_MAX_READ_LINES);
+    const selected = lines.slice(start, start + maxLines);
+    let output = selected.join("\n");
+    if (start + selected.length < lines.length) {
+      output += `\n\n[${lines.length - start - selected.length} more lines in file. Use offset=${start + selected.length + 1} to continue.]`;
+    }
+    return output;
   }
 
   async function writeFile(path, content) {
@@ -118,10 +229,87 @@ export function createSandbox({ onLog = () => {}, onStatus = () => {} } = {}) {
     }
     await wc.fs.writeFile(relative, String(content ?? ""));
     onLog(`wrote ${relative}`);
-    return `Wrote ${relative}`;
+    return `Successfully wrote ${String(content ?? "").length} bytes to ${relative}`;
   }
 
-  async function runCommand(command, args = [], timeoutMs = DEFAULT_TIMEOUT_MS) {
+  async function editFile(path, edits = []) {
+    const wc = await boot();
+    const target = toWorkspacePath(path);
+    if (!Array.isArray(edits) || edits.length === 0) {
+      throw new Error("Edit tool input is invalid. edits must contain at least one replacement.");
+    }
+    const original = await wc.fs.readFile(target, "utf-8");
+    const replacements = [];
+    for (const edit of edits) {
+      const oldText = String(edit?.oldText ?? "");
+      const newText = String(edit?.newText ?? "");
+      if (!oldText) throw new Error("Every edit.oldText must be non-empty.");
+      const first = original.indexOf(oldText);
+      if (first === -1) throw new Error(`Could not edit file: ${path}. oldText was not found.`);
+      if (original.indexOf(oldText, first + oldText.length) !== -1) {
+        throw new Error(`Could not edit file: ${path}. oldText must match exactly one location.`);
+      }
+      replacements.push({ start: first, end: first + oldText.length, newText });
+    }
+    replacements.sort((a, b) => b.start - a.start);
+    for (let index = 1; index < replacements.length; index += 1) {
+      if (replacements[index].end > replacements[index - 1].start) {
+        throw new Error("Edit tool input is invalid. edits must not overlap.");
+      }
+    }
+    let next = original;
+    for (const replacement of replacements) {
+      next = `${next.slice(0, replacement.start)}${replacement.newText}${next.slice(replacement.end)}`;
+    }
+    await wc.fs.writeFile(target, next);
+    onLog(`edited ${target}`);
+    return `Successfully replaced ${edits.length} block(s) in ${path}.`;
+  }
+
+  async function findFiles(pattern = "*", path = ".", limit = DEFAULT_RESULT_LIMIT) {
+    const start = toWorkspacePath(path || ".", { allowDot: true });
+    if (!(await pathExists(start))) throw new Error(`Path does not exist: ${path || "."}`);
+    const matcher = globToRegExp(pattern);
+    const files = await walkFiles(start);
+    const matches = files.filter((file) => matcher.test(file) || matcher.test(file.split("/").pop() || ""));
+    const capped = matches.slice(0, Number(limit || DEFAULT_RESULT_LIMIT));
+    if (matches.length > capped.length) capped.push(`[Showing ${capped.length} of ${matches.length} matches. Use a larger limit to continue.]`);
+    return capped.join("\n") || "(no matches)";
+  }
+
+  async function grepFiles({ pattern, path = ".", glob = "*", ignoreCase = false, literal = false, context = 0, limit = DEFAULT_RESULT_LIMIT }) {
+    if (!pattern) throw new Error("pattern is required.");
+    const flags = ignoreCase ? "i" : "";
+    const matcher = literal ? new RegExp(escapeRegExp(pattern), flags) : new RegExp(pattern, flags);
+    const globMatcher = globToRegExp(glob || "*");
+    const files = (await walkFiles(path || ".")).filter((file) => globMatcher.test(file) || globMatcher.test(file.split("/").pop() || ""));
+    const matches = [];
+    for (const file of files) {
+      let text = "";
+      try {
+        text = await readTextFile(file, { limit: DEFAULT_MAX_READ_LINES });
+      } catch {
+        continue;
+      }
+      const lines = text.split("\n");
+      for (let index = 0; index < lines.length; index += 1) {
+        if (!matcher.test(lines[index])) continue;
+        matcher.lastIndex = 0;
+        const before = Math.max(0, index - Number(context || 0));
+        const after = Math.min(lines.length - 1, index + Number(context || 0));
+        for (let lineIndex = before; lineIndex <= after; lineIndex += 1) {
+          matches.push(`${file}:${lineIndex + 1}:${lines[lineIndex]}`);
+          if (matches.length >= Number(limit || DEFAULT_RESULT_LIMIT)) {
+            matches.push(`[Showing first ${matches.length - 1} matches. Use a larger limit to continue.]`);
+            return matches.join("\n");
+          }
+        }
+      }
+    }
+    return matches.join("\n") || "(no matches)";
+  }
+
+  async function spawnProcess(command, args = [], timeoutMs = DEFAULT_TIMEOUT_MS) {
     const wc = await boot();
     const cmd = String(command || "").trim();
     if (!cmd) throw new Error("Command is required.");
@@ -169,13 +357,30 @@ export function createSandbox({ onLog = () => {}, onStatus = () => {} } = {}) {
     return result;
   }
 
+  async function bash(command, timeoutSeconds) {
+    const timeoutMs = timeoutSeconds ? Number(timeoutSeconds) * 1000 : DEFAULT_TIMEOUT_MS;
+    try {
+      return await spawnProcess("jsh", ["-c", command], timeoutMs);
+    } catch (error) {
+      const parts = splitCommandLine(command);
+      if (parts.length === 0) throw error;
+      return await spawnProcess(parts[0], parts.slice(1), timeoutMs);
+    }
+  }
+
   return {
     boot,
     reset,
-    listFiles,
-    readFile,
+    bash,
+    editFile,
+    findFiles,
+    grepFiles,
+    ls,
+    listFiles: ls,
+    readFile: (path) => readTextFile(path),
+    readTextFile,
     writeFile,
-    runCommand,
+    runCommand: spawnProcess,
     get isReady() {
       return Boolean(instance);
     },

src/styles.css

@@ -1,6 +1,6 @@
 :root {
-  color: #182233;
-  background: #eef2f6;
+  color: #d6deeb;
+  background: #0b0f16;
   font-family:
     Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
 }
@@ -9,15 +9,16 @@
   box-sizing: border-box;
 }
 
-body {
-  margin: 0;
+html,
+body,
+#app {
   min-width: 320px;
+  min-height: 100vh;
+  margin: 0;
 }
 
 button,
-input,
-select,
-textarea {
+select {
   font: inherit;
 }
 
@@ -26,8 +27,8 @@ button {
   padding: 0 15px;
   border: 0;
   border-radius: 6px;
-  background: #176b6c;
-  color: #fff;
+  background: #227c70;
+  color: #ffffff;
   font-weight: 750;
   cursor: pointer;
 }
@@ -38,26 +39,20 @@ button:disabled {
 }
 
 #app {
-  min-height: 100vh;
-  padding: 14px;
-}
-
-.app-shell {
   display: grid;
   grid-template-rows: auto minmax(0, 1fr);
-  gap: 12px;
-  width: min(1360px, 100%);
-  min-height: calc(100vh - 28px);
-  margin: 0 auto;
+  gap: 10px;
+  padding: 10px;
 }
 
-.topbar {
+.runtime-bar {
   display: flex;
   align-items: end;
   justify-content: space-between;
   gap: 16px;
-  padding: 8px 0 14px;
-  border-bottom: 1px solid #c7d2df;
+  min-height: 54px;
+  padding: 4px 2px 10px;
+  border-bottom: 1px solid #263244;
 }
 
 h1,
@@ -67,20 +62,16 @@ p {
 }
 
 h1 {
-  font-size: 34px;
+  color: #f8fafc;
+  font-size: 30px;
   line-height: 1;
   letter-spacing: 0;
 }
 
-h2 {
-  font-size: 15px;
-  line-height: 1.2;
-  color: #3f5064;
-}
-
 #model-label {
-  margin-top: 7px;
-  color: #5d6c7f;
+  margin-top: 5px;
+  color: #9eb1ca;
+  font-size: 13px;
   overflow-wrap: anywhere;
 }
 
@@ -89,240 +80,43 @@ h2 {
   flex-wrap: wrap;
   justify-content: end;
   gap: 8px;
-  max-width: 680px;
+  max-width: 760px;
 }
 
 .status {
-  min-height: 34px;
-  max-width: 260px;
-  padding: 7px 10px;
-  border: 1px solid #b7c4d3;
+  min-height: 32px;
+  max-width: 280px;
+  padding: 6px 10px;
+  border: 1px solid #344156;
   border-radius: 6px;
-  background: #fff;
-  color: #314155;
+  background: #141b27;
+  color: #cad7ea;
+  font-size: 13px;
   overflow-wrap: anywhere;
 }
 
-.layout {
-  display: grid;
-  grid-template-columns: minmax(0, 1fr) 340px;
-  gap: 12px;
-  min-height: 0;
-}
-
-.chat-panel,
-.side-panel {
+.terminal-shell {
   min-height: 0;
-}
-
-.chat-panel {
-  display: grid;
-  grid-template-rows: minmax(0, 1fr) auto;
-  gap: 12px;
-}
-
-.chat-scroll {
-  min-height: 420px;
-  max-height: calc(100vh - 214px);
-  overflow: auto;
-  padding: 18px;
-  border: 1px solid #c1ccda;
-  border-radius: 8px;
-  background: #fbfcfe;
-}
-
-.empty-chat {
-  display: grid;
-  align-content: center;
-  gap: 10px;
-  min-height: 320px;
-  color: #4c5d72;
-  text-align: center;
-}
-
-.empty-chat h2 {
-  font-size: 24px;
-  color: #182233;
-}
-
-.message {
-  display: grid;
-  gap: 7px;
-  width: min(760px, 92%);
-  margin-bottom: 14px;
-  padding: 12px 14px;
-  border: 1px solid #c4ceda;
-  border-radius: 8px;
-  background: #fff;
-}
-
-.message.user {
-  margin-left: auto;
-  border-color: #99bfbd;
-  background: #e9f7f4;
-}
-
-.message.assistant {
-  border-color: #c4ceda;
-}
-
-.message.tool {
-  width: min(820px, 96%);
-  margin-left: 24px;
-  background: #f5f7fa;
-}
-
-.message.error {
-  border-color: #d99a9a;
-  background: #fff4f4;
-}
-
-.message-label {
-  color: #5e6e82;
-  font-size: 12px;
-  font-weight: 800;
-  text-transform: uppercase;
-}
-
-.message-body {
-  white-space: pre-wrap;
-  overflow-wrap: anywhere;
-  line-height: 1.48;
-}
-
-.message-code,
-pre {
-  margin: 0;
-  white-space: pre-wrap;
-  overflow: auto;
-  overflow-wrap: anywhere;
-  line-height: 1.45;
-}
-
-.message-code {
-  max-height: 240px;
-  padding: 10px;
-  border-radius: 6px;
-  background: #182233;
-  color: #e9eef5;
-}
-
-.tool-call {
-  display: grid;
-  gap: 6px;
-  padding: 10px;
-  border: 1px solid #d1dae5;
-  border-radius: 6px;
-  background: #f7f9fc;
-}
-
-.tool-name {
-  color: #315f63;
-  font-weight: 800;
-}
-
-.tool-call code {
-  white-space: pre-wrap;
-  overflow-wrap: anywhere;
-}
-
-.composer {
-  display: grid;
-  grid-template-columns: minmax(0, 1fr) auto;
-  gap: 10px;
-  align-items: end;
-  padding: 10px;
-  border: 1px solid #c1ccda;
+  border: 1px solid #263244;
   border-radius: 8px;
-  background: #fff;
+  background: #10141c;
+  overflow: hidden;
 }
 
-textarea {
+#terminal {
   width: 100%;
-  min-height: 64px;
-  max-height: 180px;
-  resize: vertical;
-  padding: 12px;
-  border: 1px solid #b8c5d4;
-  border-radius: 6px;
-  background: #fff;
-  color: #152033;
-  line-height: 1.45;
-}
-
-.composer-actions {
-  display: flex;
-  gap: 8px;
-}
-
-#demo-prompt {
-  background: #4f5f73;
-}
-
-.side-panel {
-  display: grid;
-  align-content: start;
-  gap: 12px;
-}
-
-.control-group {
-  display: grid;
-  gap: 10px;
-  padding: 12px;
-  border: 1px solid #c1ccda;
-  border-radius: 8px;
-  background: #fff;
-}
-
-label {
-  display: grid;
-  gap: 6px;
-  color: #526173;
-  font-size: 13px;
-  font-weight: 700;
-}
-
-select,
-input {
-  width: 100%;
-  height: 40px;
-  padding: 0 10px;
-  border: 1px solid #b8c5d4;
-  border-radius: 6px;
-  background: #fff;
-  color: #152033;
-}
-
-.compact-grid {
-  display: grid;
-  grid-template-columns: 1fr 1fr;
-  gap: 8px;
-}
-
-.button-row {
-  display: grid;
-  grid-template-columns: 1fr 1fr;
-  gap: 8px;
-}
-
-#reset-sandbox,
-#use-test-model {
-  background: #4f5f73;
+  height: calc(100vh - 86px);
+  min-height: 420px;
+  padding: 10px;
 }
 
-#files,
-#event-log {
-  min-height: 150px;
-  max-height: 230px;
-  padding: 10px;
-  border: 1px solid #d1dae5;
-  border-radius: 6px;
-  background: #f7f9fc;
-  color: #243248;
+.xterm {
+  height: 100%;
 }
 
-#event-log {
-  max-height: 270px;
+.xterm-viewport,
+.xterm-screen {
+  border-radius: 0;
 }
 
 .model-gate {
@@ -331,7 +125,7 @@ input {
   display: grid;
   place-items: center;
   padding: 18px;
-  background: rgba(20, 31, 45, 0.46);
+  background: rgba(4, 8, 14, 0.64);
   z-index: 20;
 }
 
@@ -342,24 +136,27 @@ input {
 .model-dialog {
   display: grid;
   gap: 16px;
-  width: min(540px, 100%);
+  width: min(560px, 100%);
   padding: 22px;
+  border: 1px solid #334155;
   border-radius: 8px;
-  background: #fff;
-  box-shadow: 0 24px 80px rgba(17, 27, 42, 0.22);
+  background: #f8fafc;
+  color: #172033;
+  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
 }
 
 .eyebrow {
   margin-bottom: 7px;
-  color: #176b6c;
+  color: #227c70;
   font-size: 12px;
   font-weight: 850;
   text-transform: uppercase;
 }
 
 .model-dialog h2 {
-  font-size: 24px;
   color: #172033;
+  font-size: 24px;
+  line-height: 1.15;
 }
 
 .dialog-copy {
@@ -374,23 +171,45 @@ input {
   gap: 10px;
 }
 
+#use-test-model {
+  background: #4f5f73;
+}
+
 .dialog-options {
   display: grid;
   gap: 10px;
   color: #526173;
 }
 
+label {
+  display: grid;
+  gap: 6px;
+  font-size: 13px;
+  font-weight: 700;
+}
+
+select {
+  width: 100%;
+  height: 40px;
+  padding: 0 10px;
+  border: 1px solid #b8c5d4;
+  border-radius: 6px;
+  background: #ffffff;
+  color: #152033;
+}
+
 #gate-status {
   min-height: 22px;
+  color: #526173;
   overflow-wrap: anywhere;
 }
 
-@media (max-width: 900px) {
+@media (max-width: 760px) {
   #app {
-    padding: 10px;
+    padding: 8px;
   }
 
-  .topbar {
+  .runtime-bar {
     align-items: stretch;
     flex-direction: column;
   }
@@ -399,20 +218,9 @@ input {
     justify-content: start;
   }
 
-  .layout {
-    grid-template-columns: 1fr;
-  }
-
-  .chat-scroll {
+  #terminal {
+    height: calc(100vh - 164px);
     min-height: 360px;
-    max-height: none;
-  }
-
-  .composer {
-    grid-template-columns: 1fr;
-  }
-
-  .composer-actions {
-    justify-content: end;
+    padding: 8px;
   }
 }

src/webTerminal.js

@@ -0,0 +1,88 @@
+import "@xterm/xterm/css/xterm.css";
+
+const THEME = {
+  background: "#10141c",
+  foreground: "#d6deeb",
+  cursor: "#f7c948",
+  cursorAccent: "#10141c",
+  selectionBackground: "#334155",
+  black: "#111827",
+  red: "#f87171",
+  green: "#34d399",
+  yellow: "#facc15",
+  blue: "#60a5fa",
+  magenta: "#c084fc",
+  cyan: "#22d3ee",
+  white: "#f8fafc",
+  brightBlack: "#475569",
+  brightRed: "#fca5a5",
+  brightGreen: "#86efac",
+  brightYellow: "#fde68a",
+  brightBlue: "#93c5fd",
+  brightMagenta: "#d8b4fe",
+  brightCyan: "#67e8f9",
+  brightWhite: "#ffffff",
+};
+
+function normalizeNewlines(text) {
+  return String(text).replace(/\r?\n/g, "\r\n");
+}
+
+export async function createWebTerminal(container) {
+  let terminal;
+  let fitAddon;
+  let engine = "ghostty-web";
+
+  try {
+    const ghostty = await import("ghostty-web");
+    await ghostty.init();
+    terminal = new ghostty.Terminal({
+      cursorBlink: true,
+      fontFamily: "JetBrains Mono, SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace",
+      fontSize: 14,
+      rows: 30,
+      cols: 100,
+      scrollback: 5000,
+      theme: THEME,
+    });
+    fitAddon = new ghostty.FitAddon();
+    terminal.loadAddon(fitAddon);
+  } catch (error) {
+    const [{ Terminal }, { FitAddon }] = await Promise.all([import("@xterm/xterm"), import("@xterm/addon-fit")]);
+    engine = "xterm";
+    terminal = new Terminal({
+      cursorBlink: true,
+      fontFamily: "JetBrains Mono, SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace",
+      fontSize: 14,
+      rows: 30,
+      cols: 100,
+      scrollback: 5000,
+      theme: THEME,
+    });
+    fitAddon = new FitAddon();
+    terminal.loadAddon(fitAddon);
+    console.warn("ghostty-web failed, using xterm fallback", error);
+  }
+
+  terminal.open(container);
+  fitAddon.fit();
+  terminal.focus();
+
+  const resizeObserver = new ResizeObserver(() => fitAddon.fit());
+  resizeObserver.observe(container);
+
+  return {
+    engine,
+    raw: terminal,
+    onData: (handler) => terminal.onData(handler),
+    write: (text) => terminal.write(normalizeNewlines(text)),
+    writeln: (text = "") => terminal.write(`${normalizeNewlines(text)}\r\n`),
+    clear: () => terminal.clear(),
+    focus: () => terminal.focus(),
+    fit: () => fitAddon.fit(),
+    dispose: () => {
+      resizeObserver.disconnect();
+      terminal.dispose();
+    },
+  };
+}