| """ |
| SpatialAgent - Deepagents-based implementation. |
| |
| Refactored SpatialAgent using the deepagents framework for: |
| - Built-in task planning (write_todos) |
| - Filesystem operations |
| - Sub-agent delegation |
| - Context management |
| - Better scalability and maintainability |
| """ |
|
|
| from typing import Annotated, List, Dict, Any, TypedDict, Literal, Optional |
| import os, re, uuid, logging |
| from dataclasses import dataclass, field |
|
|
| from deepagents import create_deep_agent |
| from deepagents.backends.filesystem import FilesystemBackend |
| from deepagents.backends.state import StateBackend |
| from deepagents.middleware.skills import SkillsMiddleware |
| from ..hooks_deep import HooksMiddleware |
|
|
| from langchain_core.messages import BaseMessage, HumanMessage |
| from langchain_core.tools import BaseTool |
|
|
| from .make_prompt import AgentPrompts |
| from .make_llm import make_llm, DEFAULT_CLAUDE_MODEL |
| from .utils import load_all_tools |
|
|
|
|
| @dataclass |
| class SpatialAgentConfig: |
| """Configuration for SpatialAgent using deepagents.""" |
| llm: Any = None |
| data_path: str = "./data" |
| save_path: str = "./experiments" |
| tool_retrieval: bool = False |
| tool_retrieval_method: str = "llm" |
| min_tools: int = 5 |
| max_tools: int = 20 |
| skill_retrieval: bool = True |
| num_skills: int = 1 |
| auto_interpret_figures: bool = True |
| act_timeout: int = 1800 |
| web_search_model: str = "gemini-3-flash-preview" |
| backend_type: Literal["filesystem", "state"] = "filesystem" |
|
|
|
|
| class SpatialAgent: |
| """SpatialAgent refactored using deepagents framework.""" |
|
|
| def __init__(self, config: SpatialAgentConfig = None, **kwargs): |
| """ |
| Initialize SpatialAgent with deepagents. |
| |
| Args: |
| config: SpatialAgentConfig instance with configuration options |
| **kwargs: Additional configuration options (for backward compatibility) |
| """ |
| if config is None: |
| config = SpatialAgentConfig() |
|
|
| for key, value in kwargs.items(): |
| if hasattr(config, key): |
| setattr(config, key, value) |
|
|
| self.config = config |
|
|
| if config.llm is None: |
| print(f"No LLM provided, using default: {DEFAULT_CLAUDE_MODEL}", flush=True) |
| config.llm = make_llm(DEFAULT_CLAUDE_MODEL) |
| self.llm = config.llm |
|
|
| self.tool_retrieval = config.tool_retrieval |
| self.min_tools = config.min_tools |
| self.max_tools = config.max_tools |
| self.auto_interpret_figures = config.auto_interpret_figures |
| self.act_timeout = config.act_timeout |
|
|
| from . import set_agent_model |
| model_name = None |
| for attr in ['deployment_name', 'model_id', 'model_name', 'model']: |
| val = getattr(config.llm, attr, None) |
| if val and isinstance(val, str): |
| model_name = val |
| break |
| if not model_name: |
| model_name = "unknown" |
| set_agent_model(model_name, config.llm) |
|
|
| self.web_search_model = config.web_search_model if config.web_search_model else model_name |
|
|
| self.observation_log = [] |
| self._observation_log_path = os.path.join(config.save_path, "observation_log.jsonl") |
| |
| self.conversation_history = {} |
| self.default_thread_id = str(uuid.uuid4()) |
|
|
| data_path = os.path.abspath(config.data_path) |
| save_path = os.path.abspath(config.save_path) |
| self.save_path = save_path |
| self.data_path = data_path |
| print(f"Data path: {data_path}", flush=True) |
| print(f"Save path: {save_path}", flush=True) |
|
|
| os.makedirs(save_path, exist_ok=True) |
| os.makedirs(data_path, exist_ok=True) |
|
|
| self._build_backend() |
| self._build_skills() |
| self._load_tools() |
| self._build_system_prompt() |
| self._build_agent() |
|
|
| def _load_tools(self): |
| """Load all spatial transcriptomics tools.""" |
| print("Loading tools from tool modules...", flush=True) |
| self.tools = load_all_tools(save_path=self.save_path, data_path=self.data_path) |
| print(f"Loaded {len(self.tools)} tools", flush=True) |
| |
| if self.config.skill_retrieval and hasattr(self, 'skills_metadata') and self.skills_metadata: |
| self._add_skill_tool() |
| |
| def _add_skill_tool(self): |
| """Add a use_skill tool to read skill details.""" |
| from langchain_core.tools import tool |
| |
| skills_meta = self.skills_metadata |
| |
| @tool |
| def use_skill(skill_name: str) -> str: |
| """Read the full instructions for a spatial transcriptomics analysis skill. |
| |
| Args: |
| skill_name: Name of the skill to read (e.g., "liana-analysis", "spatial-deconvolution") |
| |
| Returns: |
| Full skill documentation with workflow steps, best practices, and examples. |
| """ |
| for skill in skills_meta: |
| if skill['name'] == skill_name or skill['name'].replace('-', '_') == skill_name: |
| try: |
| with open(skill['path'], 'r') as f: |
| return f.read() |
| except Exception as e: |
| return f"Error reading skill: {e}" |
| |
| available = [s['name'] for s in skills_meta] |
| return f"Skill '{skill_name}' not found. Available skills: {', '.join(available)}" |
| |
| self.tools.append(use_skill) |
| print(f"Added use_skill tool for {len(self.skills_metadata)} skills", flush=True) |
|
|
| def _build_system_prompt(self): |
| """Build system prompt with spatial transcriptomics domain knowledge.""" |
| tool_list = [] |
| for tool in self.tools: |
| tool_name = getattr(tool, 'name', tool.__class__.__name__) |
| tool_desc = getattr(tool, 'description', 'No description') |
| tool_list.append((tool_name, tool_desc)) |
| |
| tool_names = [t[0] for t in tool_list] |
| |
| skills_section = "" |
| if hasattr(self, 'skills_metadata') and self.skills_metadata: |
| skill_list_str = "\n".join([f"- **{s['name']}**: {s['description'][:80]}" for s in self.skills_metadata]) |
| skills_section = f""" |
| ## SPECIALIZED SPATIAL TRANSCRIPTOMICS SKILLS |
| |
| You also have access to {len(self.skills_metadata)} curated workflow skills. Use the `use_skill` tool to read full instructions. |
| |
| Available skills: |
| {skill_list_str} |
| |
| ## How to Use Skills |
| 1. When a user's task matches a skill's domain, call `use_skill(skill_name="...")` to get detailed workflow instructions |
| 2. Follow the skill's step-by-step guidance |
| 3. Use the specialized tools listed above to execute each step |
| |
| ## TOOLS vs SKILLS |
| - **TOOLS (工具)**: Individual callable functions (search_panglao, liana_inference, execute_python, etc.) - 72 total |
| - **SKILLS (技能)**: Curated workflow guides that tell you WHICH tools to use and WHEN - {len(self.skills_metadata)} total |
| - Use `use_skill` to read skill details, then use tools to execute |
| """ |
| |
| self.system_prompt = f"""You are a helpful assistant specialized in spatial transcriptomics analysis. |
| |
| ## CONVERSATION CONTEXT |
| |
| IMPORTANT: You HAVE FULL ACCESS to conversation history. ALWAYS read and remember ALL previous messages in the conversation. Use this context to provide personalized responses. You can and should reference information from earlier messages. |
| |
| ## COMPLEX TASK PLANNING |
| |
| When you receive a complex task that requires multiple steps or tool calls, YOU MUST FIRST OUTPUT A PLAN (todo list) before executing any tools. This helps organize the workflow and ensures all necessary steps are completed. |
| |
| ### HOW TO DETERMINE IF A TASK IS COMPLEX: |
| - Simple tasks: Can be answered in 1-2 sentences or with a single tool call (e.g., "What is my name?", "Query disease genes for prostate cancer") |
| - Complex tasks: Require multiple steps, multiple tool calls, or synthesis of information (e.g., "Design a 50-gene panel", "Analyze spatial transcriptomics data", "Generate a comprehensive report") |
| |
| ### PLAN FORMAT (MUST FOLLOW): |
| |
| For complex tasks, output your plan FIRST in this format: |
| |
| ```plan |
| ## Task: [Task Name] |
| |
| ### Steps: |
| 1. [Step 1 description] - [Tool to use if applicable] |
| 2. [Step 2 description] - [Tool to use if applicable] |
| 3. [Step 3 description] - [Tool to use if applicable] |
| ... |
| |
| ### Expected Output: |
| [Brief description of what the final output will include] |
| ``` |
| |
| After outputting the plan, you can start executing the steps one by one using tool calls. |
| |
| ## TOOL CALLING FORMAT (MUST FOLLOW) |
| |
| When you need to call a tool, output ONLY a JSON object with "name" and "arguments" fields. DO NOT use markdown code blocks. |
| |
| EXACT FORMAT: |
| {{ |
| "name": "TOOL_NAME", |
| "arguments": {{ |
| "PARAM1": "VALUE1", |
| "PARAM2": VALUE2 |
| }} |
| }} |
| |
| ## CRITICAL RULES |
| - NEVER use ```json or any markdown code blocks |
| - NEVER use <act> tags |
| - ALWAYS use plain JSON format for tool calls |
| - ALWAYS include both "name" and "arguments" fields |
| - Parameter names must match exactly (e.g., "disease" not "diseases") |
| - Execute ONE tool at a time, wait for results, then continue |
| - ALWAYS remember and use conversation history for context |
| - NEVER say you don't have access to conversation history - you ALWAYS have access |
| - FOR SIMPLE QUESTIONS that can be answered from conversation history alone (like "what is my name?", "what did we talk about?"), DO NOT CALL TOOLS. Answer directly using the conversation history. |
| - FOR COMPLEX TASKS, ALWAYS OUTPUT A PLAN FIRST before executing tools. |
| |
| ## TOOLS AVAILABLE |
| |
| Database: search_panglao, search_cellmarker2, search_czi_datasets, query_tissue_expression, query_disease_genes |
| Literature: query_pubmed, search_semantic_scholar, web_search |
| Analytics: liana_inference, squidpy_ligrec, cellphonedb_analysis, tangram_map_cells, spagcn_clustering, scanpy_score_genes |
| Interpretation: annotate_cell_types, annotate_tissue_niches |
| Coding: execute_python, execute_bash |
| Subagent: report_subagent, verification_subagent |
| |
| ## WHEN TO USE SKILLS |
| |
| Use `use_skill(skill_name="...")` for complex workflows. For simple queries, call tools directly. |
| """ |
|
|
| def _build_backend(self): |
| """Build the filesystem backend for the agent.""" |
| if self.config.backend_type == "filesystem": |
| self.backend = FilesystemBackend( |
| root_dir=self.save_path, |
| virtual_mode=True, |
| max_file_size_mb=50 |
| ) |
| print(f"Using FilesystemBackend with root_dir: {self.save_path}", flush=True) |
| else: |
| self.backend = StateBackend() |
| print("Using StateBackend (ephemeral storage)", flush=True) |
|
|
| def _build_skills(self): |
| """Load skill templates for common spatial transcriptomics workflows.""" |
| if self.config.skill_retrieval: |
| skills_source_dir = os.path.join(os.path.dirname(__file__), '..', 'skill') |
| skills_source_dir = os.path.abspath(skills_source_dir) |
| |
| skills_target_dir = os.path.join(self.save_path, 'skills') |
| |
| if os.path.exists(skills_source_dir): |
| self._copy_skills(skills_source_dir, skills_target_dir) |
| self.skills_path = skills_target_dir |
| print(f"Skills loaded from: {skills_source_dir}", flush=True) |
| print(f"Skills copied to: {skills_target_dir}", flush=True) |
| self._load_skills_metadata() |
| else: |
| self.skills_path = None |
| self.skills_metadata = [] |
| print("Skills source directory not found, skill retrieval disabled", flush=True) |
| else: |
| self.skills_path = None |
| self.skills_metadata = [] |
| |
| def _load_skills_metadata(self): |
| """Load skill metadata from skill directories.""" |
| import re |
| |
| self.skills_metadata = [] |
| |
| if not self.skills_path or not os.path.exists(self.skills_path): |
| return |
| |
| for item in sorted(os.listdir(self.skills_path)): |
| item_path = os.path.join(self.skills_path, item) |
| if not os.path.isdir(item_path): |
| continue |
| |
| skill_md = os.path.join(item_path, 'SKILL.md') |
| if not os.path.exists(skill_md): |
| continue |
| |
| with open(skill_md, 'r') as f: |
| content = f.read() |
| |
| name = item |
| description = "" |
| |
| frontmatter_match = re.match(r'^---\n(.*?)\n---', content, re.DOTALL) |
| if frontmatter_match: |
| frontmatter = frontmatter_match.group(1) |
| for line in frontmatter.split('\n'): |
| if line.startswith('name:'): |
| name = line.split(':', 1)[1].strip() |
| elif line.startswith('description:'): |
| description = line.split(':', 1)[1].strip() |
| |
| if not description: |
| lines = content.strip().split('\n') |
| for line in lines: |
| if line.startswith('# '): |
| continue |
| if line.strip(): |
| description = line.strip() |
| break |
| |
| self.skills_metadata.append({ |
| 'name': name, |
| 'description': description, |
| 'path': skill_md |
| }) |
| |
| print(f"Loaded {len(self.skills_metadata)} skills", flush=True) |
| |
| def _copy_skills(self, source_dir: str, target_dir: str): |
| """Copy skill directories from source to target.""" |
| import shutil |
| |
| os.makedirs(target_dir, exist_ok=True) |
| |
| for item in os.listdir(source_dir): |
| item_path = os.path.join(source_dir, item) |
| if os.path.isdir(item_path): |
| target_item = os.path.join(target_dir, item) |
| if os.path.exists(target_item): |
| shutil.rmtree(target_item) |
| shutil.copytree(item_path, target_item) |
|
|
| def _build_agent(self): |
| """Build the deep agent using langgraph with proper tool binding and memory.""" |
| print("Building deep agent...", flush=True) |
|
|
| from langchain_core.messages import SystemMessage |
| from langgraph.graph import StateGraph, END |
| from langgraph.prebuilt import ToolNode |
| from langgraph.checkpoint.memory import MemorySaver |
| |
| def should_continue(state): |
| messages = state["messages"] |
| last_message = messages[-1] |
| if hasattr(last_message, 'tool_calls') and last_message.tool_calls: |
| return "tools" |
| return END |
|
|
| def call_model(state): |
| messages = state["messages"] |
| system_message = SystemMessage(content=self.system_prompt) |
| full_messages = [system_message] + messages |
| |
| content_to_send = "" |
| for msg in full_messages: |
| if isinstance(msg, SystemMessage): |
| content_to_send += f"System: {msg.content}\n" |
| elif hasattr(msg, 'content'): |
| role = "User" if isinstance(msg, HumanMessage) else "Assistant" |
| content_to_send += f"{role}: {msg.content}\n" |
| |
| response = self.llm.invoke(content_to_send) |
| response_content = response.content if hasattr(response, 'content') else str(response) |
| |
| import json |
| import re |
| import uuid |
| |
| tool_calls = [] |
| json_match = re.search(r'\{[\s\S]*"name":\s*"[^"]+"[\s\S]*\}', response_content) |
| if json_match: |
| try: |
| tool_call_json = json.loads(json_match.group()) |
| if "name" in tool_call_json and "arguments" in tool_call_json: |
| tool_calls = [{ |
| "id": str(uuid.uuid4()), |
| "name": tool_call_json["name"], |
| "args": tool_call_json["arguments"] |
| }] |
| except json.JSONDecodeError: |
| pass |
| |
| from langchain_core.messages import AIMessage |
| if tool_calls: |
| ai_response = AIMessage(content=response_content, tool_calls=tool_calls) |
| else: |
| ai_response = AIMessage(content=response_content) |
| |
| return {"messages": messages + [ai_response]} |
|
|
| tool_node = ToolNode(self.tools) |
|
|
| workflow = StateGraph(dict) |
| workflow.add_node("agent", call_model) |
| workflow.add_node("tools", tool_node) |
| workflow.set_entry_point("agent") |
| workflow.add_conditional_edges("agent", should_continue) |
| workflow.add_edge("tools", "agent") |
|
|
| memory_saver = MemorySaver() |
| self.agent = workflow.compile(checkpointer=memory_saver) |
|
|
| print("Deep agent built successfully with memory!", flush=True) |
|
|
| def _log_observation(self, step_number: int, code: str, result: str, figure_interpretations: str = ""): |
| """Log an observation for later report generation.""" |
| import json |
| from datetime import datetime |
|
|
| entry = { |
| "step": step_number, |
| "timestamp": datetime.now().isoformat(), |
| "code_snippet": code, |
| "result_summary": result, |
| "figure_interpretations": figure_interpretations, |
| } |
|
|
| self.observation_log.append(entry) |
|
|
| try: |
| with open(self._observation_log_path, 'a') as f: |
| f.write(json.dumps(entry) + '\n') |
| except Exception as e: |
| print(f"Warning: Could not write to observation log: {e}") |
|
|
| def _display_figures(self, code_context: str = "", user_query: str = "") -> str: |
| """Display any new image files and optionally interpret them using vision LLM.""" |
| interpretations = [] |
|
|
| try: |
| from spatialagent.tool.coding import get_new_image_files |
| image_files = get_new_image_files() |
| if not image_files: |
| return "" |
|
|
| try: |
| from IPython.display import display, Image, SVG |
| import os |
| print(f"📊 Displaying {len(image_files)} figure(s)...") |
| for img_path in image_files: |
| if not os.path.exists(img_path): |
| print(f"⚠️ File not found: {img_path}") |
| continue |
| ext = os.path.splitext(img_path)[1].lower() |
| if ext == '.svg': |
| display(SVG(filename=img_path)) |
| elif ext in ('.png', '.jpg', '.jpeg'): |
| display(Image(filename=img_path)) |
| elif ext == '.pdf': |
| print(f"📄 Created: {os.path.basename(img_path)}") |
| except ImportError: |
| import os |
| print(f"[{len(image_files)} figure(s) created: {', '.join(os.path.basename(f) for f in image_files)}]") |
|
|
| if self.auto_interpret_figures and image_files: |
| print(f"🔍 Interpreting {len(image_files)} figure(s)...") |
|
|
| from spatialagent.tool.interpretation import interpret_figure |
|
|
| for img_path in image_files: |
| import os |
| if not os.path.exists(img_path): |
| continue |
|
|
| ext = os.path.splitext(img_path)[1].lower() |
| if ext == '.pdf': |
| continue |
|
|
| try: |
| context = self._infer_figure_context(code_context, img_path, user_query) |
|
|
| interpretation = interpret_figure.invoke({ |
| "image_path": img_path, |
| "context": context, |
| "analysis_focus": "general" |
| }) |
|
|
| fig_name = os.path.basename(img_path) |
| interpretations.append(f"\n### Figure Interpretation: {fig_name}\n{interpretation}") |
|
|
| except Exception as e: |
| print(f"⚠️ Could not interpret {os.path.basename(img_path)}: {e}") |
|
|
| except Exception as e: |
| print(f"⚠️ Error displaying/interpreting figures: {e}") |
|
|
| return "\n".join(interpretations) if interpretations else "" |
|
|
| def _infer_figure_context(self, code: str, img_path: str, user_query: str = "") -> str: |
| """Infer the context/type of a figure from the code that generated it.""" |
| import os |
|
|
| fig_name = os.path.basename(img_path) |
| context_parts = [f"Figure: {fig_name}"] |
|
|
| code_lower = code.lower() |
|
|
| plot_types = [] |
| if "umap" in code_lower: |
| plot_types.append("UMAP dimensionality reduction") |
| if "tsne" in code_lower or "t-sne" in code_lower: |
| plot_types.append("t-SNE dimensionality reduction") |
| if "pca" in code_lower and "plot" in code_lower: |
| plot_types.append("PCA plot") |
| if "sc.pl.spatial" in code_lower or "sq.pl.spatial" in code_lower or "spatial_scatter" in code_lower: |
| plot_types.append("Spatial plot showing tissue coordinates") |
| if "heatmap" in code_lower or "sns.heatmap" in code_lower or "clustermap" in code_lower: |
| plot_types.append("Heatmap visualization") |
| if "violin" in code_lower: |
| plot_types.append("Violin plot") |
| if "dotplot" in code_lower or "dot_plot" in code_lower: |
| plot_types.append("Dot plot") |
| if "stacked_violin" in code_lower: |
| plot_types.append("Stacked violin plot") |
| if "matrixplot" in code_lower: |
| plot_types.append("Matrix plot") |
| if "rank_genes" in code_lower: |
| plot_types.append("Ranked genes plot") |
| if "barplot" in code_lower or "bar(" in code_lower or "barh(" in code_lower: |
| plot_types.append("Bar plot") |
| if "boxplot" in code_lower: |
| plot_types.append("Box plot") |
| if "scatter" in code_lower and "spatial" not in code_lower: |
| plot_types.append("Scatter plot") |
|
|
| if plot_types: |
| context_parts.append(" + ".join(plot_types)) |
|
|
| color_by = [] |
| if "cell_type" in code_lower or "celltype" in code_lower or "tier3" in code_lower: |
| color_by.append("cell type") |
| if "leiden" in code_lower: |
| color_by.append("Leiden clusters") |
| if "louvain" in code_lower: |
| color_by.append("Leiden clusters") |
| if "batch" in code_lower or "sample" in code_lower: |
| color_by.append("batch/sample") |
| if "condition" in code_lower or "sample_type" in code_lower: |
| color_by.append("condition/disease stage") |
| if "leiden_neigh" in code_lower or "neighborhood" in code_lower or "neigh" in code_lower: |
| color_by.append("spatial neighborhood") |
| if "niche" in code_lower: |
| color_by.append("tissue niche") |
|
|
| if color_by: |
| context_parts.append(f"colored/grouped by: {', '.join(color_by)}") |
|
|
| title_patterns = [ |
| r'plt\.title\s*\(\s*[\'"]([^\'"]+)[\'"]', |
| r'\.set_title\s*\(\s*[\'"]([^\'"]+)[\'"]', |
| r'title\s*=\s*[\'"]([^\'"]+)[\'"]', |
| ] |
| for pattern in title_patterns: |
| match = re.search(pattern, code) |
| if match: |
| context_parts.append(f"Title: {match.group(1)}") |
| break |
|
|
| gene_patterns = [ |
| r'var_names\s*=\s*\[([^\]]+)\]', |
| r'genes\s*=\s*\[([^\]]+)\]', |
| r"color\s*=\s*['\"]([A-Z][A-Z0-9]+)['\"]", |
| ] |
| for pattern in gene_patterns: |
| match = re.search(pattern, code, re.IGNORECASE) |
| if match: |
| genes = match.group(1).strip() |
| if len(genes) < 200: |
| context_parts.append(f"Genes: {genes}") |
| break |
|
|
| comment_pattern = r'#\s*(.+?)$' |
| comments = re.findall(comment_pattern, code, re.MULTILINE) |
| relevant_comments = [c.strip() for c in comments if len(c.strip()) > 10 and len(c.strip()) < 100] |
| if relevant_comments: |
| context_parts.append(f"Code comments: {'; '.join(relevant_comments[:2])}") |
|
|
| if "comparison" in code_lower or "vs" in code_lower or "versus" in code_lower: |
| context_parts.append("Comparative analysis") |
| if "composition" in code_lower: |
| context_parts.append("Composition analysis") |
| if "proportion" in code_lower or "percentage" in code_lower: |
| context_parts.append("Proportion/percentage analysis") |
| if "dynamics" in code_lower or "trajectory" in code_lower: |
| context_parts.append("Dynamics/trajectory analysis") |
| if "interaction" in code_lower: |
| context_parts.append("Cell-cell interaction analysis") |
|
|
| if user_query: |
| query_truncated = user_query[:500] if len(user_query) > 500 else user_query |
| context_parts.append(f"Biological context: {query_truncated}") |
|
|
| return " | ".join(context_parts) |
|
|
| def run(self, user_query: str, config: Dict[str, Any] = None) -> Dict[str, Any]: |
| """ |
| Run the agent with a user query. |
| |
| Args: |
| user_query: The user's task/question |
| config: Optional configuration dict |
| |
| Returns: |
| Final agent state |
| """ |
| if config is None: |
| config = {"recursion_limit": 50} |
| elif "recursion_limit" not in config: |
| config["recursion_limit"] = 50 |
|
|
| thread_id = config.get("thread_id", self.default_thread_id) |
| |
| langgraph_config = { |
| "recursion_limit": config.get("recursion_limit", 50), |
| "configurable": { |
| "thread_id": thread_id |
| } |
| } |
|
|
| import sys |
| print(f"\033[1m<user query>\033[0m\n{user_query.strip()}\n\033[1m</user query>\033[0m\n") |
| sys.stdout.flush() |
|
|
| try: |
| existing_messages = self.conversation_history.get(thread_id, []) |
| |
| if existing_messages: |
| print(f"✅ Restored {len(existing_messages)} messages from memory for thread: {thread_id}", flush=True) |
| else: |
| print(f"🔄 Starting new conversation thread: {thread_id}", flush=True) |
|
|
| initial_state = { |
| "messages": existing_messages + [HumanMessage(content=user_query)], |
| } |
|
|
| final_state = None |
| step_count = 0 |
| all_messages_accumulated = [] |
|
|
| for state_update in self.agent.stream(initial_state, stream_mode="values", config=langgraph_config): |
| step_count += 1 |
| messages = state_update.get("messages", []) |
| all_messages_accumulated = messages |
| logging.debug(f"Stream step {step_count}: {len(messages)} messages") |
|
|
| for msg in messages[-1:]: |
| self._print_message(msg) |
|
|
| final_state = state_update |
|
|
| msg_content = messages[-1].content if messages and hasattr(messages[-1], 'content') else "" |
| if isinstance(msg_content, str) and "<conclude>" in msg_content: |
| break |
|
|
| if all_messages_accumulated: |
| self.conversation_history[thread_id] = all_messages_accumulated |
|
|
| logging.debug(f"Stream loop ended after {step_count} steps") |
|
|
| return {"messages": all_messages_accumulated} |
|
|
| except Exception as e: |
| print(f"Error: {e}", flush=True) |
| raise |
|
|
| def _print_message(self, message: BaseMessage): |
| """Print a message with appropriate formatting.""" |
| import sys |
|
|
| if isinstance(message, HumanMessage): |
| return |
|
|
| msg = message.content |
| if not msg or not isinstance(msg, str): |
| return |
|
|
| msg_stripped = msg.strip() |
| if not msg_stripped or msg_stripped == "[]" or msg_stripped == "{}": |
| return |
|
|
| if msg_stripped.startswith("[System]"): |
| return |
|
|
| def format_tag(text, tag, color_code): |
| pattern = rf"<{tag}>(.*?)</{tag}>" |
|
|
| def replacer(match): |
| content = match.group(1).strip() |
| return f"{color_code}<{tag}>\033[0m\n{content}\n{color_code}</{tag}>\033[0m" |
|
|
| return re.sub(pattern, replacer, text, flags=re.DOTALL) |
|
|
| conclude_match = re.search(r"<conclude>(.*?)</conclude>", msg, re.DOTALL) |
|
|
| if conclude_match: |
| try: |
| from rich.console import Console |
| from rich.markdown import Markdown |
| from rich.theme import Theme |
|
|
| custom_theme = Theme({ |
| "markdown.code": "bold cyan", |
| "markdown.code_block": "cyan on grey93", |
| }) |
| console = Console(theme=custom_theme, force_terminal=True) |
|
|
| conclude_content = conclude_match.group(1).strip() |
|
|
| if conclude_match.start() > 0: |
| pre_conclude = msg[:conclude_match.start()].strip() |
| pre_conclude = format_tag(pre_conclude, "act", "\033[91m") |
| pre_conclude = format_tag(pre_conclude, "observation", "\033[94m") |
| print(pre_conclude) |
| print() |
| sys.stdout.flush() |
|
|
| print("\033[1m<conclude>\033[0m") |
| md = Markdown(conclude_content, code_theme="github-light", inline_code_theme="cyan") |
| console.print(md) |
| print("\033[1m</conclude>\033[0m") |
| print() |
| sys.stdout.flush() |
|
|
| except ImportError: |
| display_msg = format_tag(msg_stripped, "act", "\033[91m") |
| display_msg = format_tag(display_msg, "observation", "\033[94m") |
| display_msg = format_tag(display_msg, "conclude", "\033[1m") |
| print(display_msg) |
| print() |
| sys.stdout.flush() |
| else: |
| display_msg = format_tag(msg_stripped, "act", "\033[91m") |
| display_msg = format_tag(display_msg, "observation", "\033[94m") |
| print(display_msg) |
| print() |
| sys.stdout.flush() |