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FileAgent v7 — Autonomous file system management, code editing, project scaffolding
Like Devin's file browser + OneHand's file manipulation
"""
import asyncio
import json
import os
import re
import shutil
from pathlib import Path
from typing import Dict, List, Optional
import structlog
from .base_agent import BaseAgent
log = structlog.get_logger()
FILE_SYSTEM = """You are an elite file system and project management agent.
You can:
- Create, read, edit, delete files and directories
- Scaffold complete project structures
- Analyze codebases and suggest improvements
- Generate file trees and project maps
- Apply patches and diffs to code files
- Manage project configuration files
Always provide complete, runnable file content.
"""
WORKSPACE = os.environ.get("WORKSPACE_DIR", "/tmp/god_workspace")
class FileAgent(BaseAgent):
def __init__(self, ws_manager=None, ai_router=None):
super().__init__("FileAgent", ws_manager, ai_router)
os.makedirs(WORKSPACE, exist_ok=True)
async def run(self, task: str, context: Dict = {}, **kwargs) -> str:
session_id = kwargs.get("session_id", "")
task_id = kwargs.get("task_id", "")
await self.emit(task_id, "agent_start", {"agent": "FileAgent", "task": task[:80]}, session_id)
task_lower = task.lower()
if any(k in task_lower for k in ["create", "scaffold", "generate", "new project", "init"]):
result = await self._scaffold_project(task, context, task_id, session_id)
elif any(k in task_lower for k in ["read", "show", "view", "list", "tree"]):
result = await self._read_or_list(task, task_id, session_id)
elif any(k in task_lower for k in ["edit", "modify", "update", "change", "fix", "patch"]):
result = await self._edit_file(task, context, task_id, session_id)
elif any(k in task_lower for k in ["delete", "remove", "clean"]):
result = await self._delete_files(task, task_id, session_id)
else:
result = await self._ai_file_task(task, context, task_id, session_id)
return result
async def _scaffold_project(self, task: str, context: Dict, task_id: str, session_id: str) -> str:
"""Scaffold a complete project structure."""
await self.emit(task_id, "tool_called", {
"agent": "FileAgent", "tool": "scaffold_project", "step": "Generating project structure"
}, session_id)
messages = [
{"role": "system", "content": FILE_SYSTEM},
{"role": "user", "content": (
f"Task: {task}\n\n"
"Generate a complete project scaffold. Return a JSON object with this structure:\n"
"{\n"
' "project_name": "name",\n'
' "files": [\n'
' {"path": "relative/path/file.ext", "content": "full file content here"}\n'
" ],\n"
' "description": "what was created",\n'
' "run_commands": ["npm install", "npm run dev"]\n'
"}\n"
"Include all necessary files for a working project."
)},
]
response = await self.llm(messages, task_id=task_id, session_id=session_id, temperature=0.2, max_tokens=8192)
# Parse JSON and create files
created_files = []
try:
start = response.find("{")
end = response.rfind("}") + 1
if start >= 0 and end > start:
data = json.loads(response[start:end])
project_name = data.get("project_name", "project")
project_path = os.path.join(WORKSPACE, project_name)
os.makedirs(project_path, exist_ok=True)
for f in data.get("files", []):
filepath = os.path.join(project_path, f["path"])
os.makedirs(os.path.dirname(filepath), exist_ok=True)
with open(filepath, "w") as fp:
fp.write(f["content"])
created_files.append(f["path"])
await self.emit(task_id, "file_written", {
"path": f["path"], "size": len(f["content"])
}, session_id)
result = (
f"✅ **Project Scaffolded**: `{project_name}`\n\n"
f"**Files Created** ({len(created_files)}):\n"
+ "\n".join(f"- `{f}`" for f in created_files)
+ f"\n\n**Description:** {data.get('description', '')}\n\n"
+ "**Run Commands:**\n"
+ "\n".join(f"```\n{cmd}\n```" for cmd in data.get("run_commands", []))
)
return result
except Exception as e:
log.warning("Failed to parse project scaffold JSON", error=str(e))
return response
async def _read_or_list(self, task: str, task_id: str, session_id: str) -> str:
"""Read files or list directory structure."""
await self.emit(task_id, "tool_called", {
"agent": "FileAgent", "tool": "read_files", "step": "Reading file system"
}, session_id)
# Extract path from task
path_match = re.search(r'["\']([^"\']+)["\']|(\S+\.\w+)', task)
target_path = path_match.group(1) or path_match.group(2) if path_match else WORKSPACE
if not os.path.isabs(target_path):
target_path = os.path.join(WORKSPACE, target_path)
if os.path.isdir(target_path):
tree = self._get_tree(target_path)
return f"**Directory Tree:** `{target_path}`\n\n```\n{tree}\n```"
elif os.path.isfile(target_path):
with open(target_path) as f:
content = f.read()
return f"**File:** `{target_path}`\n\n```\n{content[:4000]}\n```"
else:
# List workspace
tree = self._get_tree(WORKSPACE, max_depth=3)
return f"**Workspace:** `{WORKSPACE}`\n\n```\n{tree}\n```"
async def _edit_file(self, task: str, context: Dict, task_id: str, session_id: str) -> str:
"""Edit a file based on instructions."""
await self.emit(task_id, "tool_called", {
"agent": "FileAgent", "tool": "edit_file", "step": "Editing file"
}, session_id)
messages = [
{"role": "system", "content": FILE_SYSTEM},
{"role": "user", "content": (
f"Task: {task}\n\n"
f"Context: {json.dumps(context)[:500]}\n\n"
"Return a JSON with: {\"filepath\": \"path\", \"content\": \"full new file content\", \"explanation\": \"what changed\"}"
)},
]
response = await self.llm(messages, task_id=task_id, session_id=session_id, temperature=0.1, max_tokens=8192)
try:
start = response.find("{")
end = response.rfind("}") + 1
if start >= 0 and end > start:
data = json.loads(response[start:end])
filepath = os.path.join(WORKSPACE, data.get("filepath", "output.txt"))
os.makedirs(os.path.dirname(filepath), exist_ok=True)
with open(filepath, "w") as f:
f.write(data.get("content", ""))
await self.emit(task_id, "file_written", {"path": data.get("filepath"), "edited": True}, session_id)
return f"✅ **File Edited:** `{data.get('filepath')}`\n\n{data.get('explanation', '')}"
except Exception:
pass
return response
async def _delete_files(self, task: str, task_id: str, session_id: str) -> str:
"""Delete files or directories safely."""
path_match = re.search(r'["\']([^"\']+)["\']', task)
if path_match:
target = os.path.join(WORKSPACE, path_match.group(1))
if os.path.exists(target) and WORKSPACE in target:
if os.path.isdir(target):
shutil.rmtree(target)
else:
os.remove(target)
await self.emit(task_id, "file_deleted", {"path": path_match.group(1)}, session_id)
return f"✅ Deleted: `{path_match.group(1)}`"
return "❌ Could not find file/directory to delete. Please specify the path in quotes."
async def _ai_file_task(self, task: str, context: Dict, task_id: str, session_id: str) -> str:
"""Handle generic file tasks via AI."""
messages = [
{"role": "system", "content": FILE_SYSTEM},
{"role": "user", "content": f"Task: {task}\n\nWorkspace: {WORKSPACE}\n\nContext: {json.dumps(context)[:300]}"},
]
return await self.llm(messages, task_id=task_id, session_id=session_id, temperature=0.3, max_tokens=4096)
def _get_tree(self, path: str, prefix: str = "", max_depth: int = 4, depth: int = 0) -> str:
"""Generate a directory tree string."""
if depth > max_depth:
return ""
try:
entries = sorted(os.scandir(path), key=lambda e: (e.is_file(), e.name))
except PermissionError:
return ""
lines = []
for i, entry in enumerate(entries):
if entry.name.startswith(".") and entry.name not in [".env", ".gitignore"]:
continue
connector = "└── " if i == len(entries) - 1 else "├── "
lines.append(f"{prefix}{connector}{entry.name}")
if entry.is_dir() and depth < max_depth:
extension = " " if i == len(entries) - 1 else "│ "
subtree = self._get_tree(entry.path, prefix + extension, max_depth, depth + 1)
if subtree:
lines.append(subtree)
return "\n".join(lines)
def list_workspace(self) -> Dict:
"""List all workspace files."""
files = []
for root, dirs, filenames in os.walk(WORKSPACE):
dirs[:] = [d for d in dirs if not d.startswith(".") and d != "node_modules"]
for f in filenames:
full_path = os.path.join(root, f)
rel_path = os.path.relpath(full_path, WORKSPACE)
try:
size = os.path.getsize(full_path)
files.append({"path": rel_path, "size": size})
except Exception:
pass
return {"workspace": WORKSPACE, "files": files, "total": len(files)}
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