Files
awesome-copilot/cookbook/copilot-sdk/python/recipe/ralph_loop.py
James Montemagno 33f544c71d Align Copilot SDK documentation with permission handling requirements (#1107)
* Apply permission handler requirements across Copilot SDK docs

Co-authored-by: jamesmontemagno <1676321+jamesmontemagno@users.noreply.github.com>
Agent-Logs-Url: https://github.com/jamesmontemagno/awesome-copilot/sessions/adf27a88-92f8-4ca6-b3fe-1204e3bb9963

* Polish permission update formatting in SDK examples

Co-authored-by: jamesmontemagno <1676321+jamesmontemagno@users.noreply.github.com>
Agent-Logs-Url: https://github.com/jamesmontemagno/awesome-copilot/sessions/adf27a88-92f8-4ca6-b3fe-1204e3bb9963

* Fix review comments on SDK permission handling PR

Address 5 review comments from PR #1103:

1. Fix invalid object literal syntax (stray comma) in resumeSession
   example in copilot-sdk-nodejs.instructions.md

2. Replace unused PermissionHandler import with actual usage in
   cookbook/copilot-sdk/python/recipe/ralph_loop.py (was using
   inline lambda instead)

3. Replace unused approveAll import with actual usage in
   cookbook/copilot-sdk/nodejs/recipe/ralph-loop.ts (was using
   inline handler instead)

4. Add missing PermissionHandler import to 4 Python code snippets
   in skills/copilot-sdk/SKILL.md that reference it without importing

5. Add missing approveAll import to 3 TypeScript code snippets
   in skills/copilot-sdk/SKILL.md that reference it without importing

* Refactor session creation to improve code formatting and consistency across SDK examples

* Fix formatting: split multi-property lines and put closing braces on own lines

Address review comments on PR #1107:
- Split OnPermissionRequest + Model onto separate lines in Go, C#, TypeScript
- Put closing }); on its own line consistently across all examples
- Fix indentation in SKILL.md Quick Start, CLI URL, Error Handling sections
- Fix cookbook Go multiple-sessions and error-handling formatting
- Fix ralph-loop.md TypeScript indentation

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: jamesmontemagno <1676321+jamesmontemagno@users.noreply.github.com>
2026-03-23 11:11:19 +11:00

79 lines
2.5 KiB
Python

#!/usr/bin/env python3
"""
Ralph loop: autonomous AI task loop with fresh context per iteration.
Two modes:
- "plan": reads PROMPT_plan.md, generates/updates IMPLEMENTATION_PLAN.md
- "build": reads PROMPT_build.md, implements tasks, runs tests, commits
Each iteration creates a fresh session so the agent always operates in
the "smart zone" of its context window. State is shared between
iterations via files on disk (IMPLEMENTATION_PLAN.md, AGENTS.md, specs/*).
Usage:
python ralph_loop.py # build mode, 50 iterations
python ralph_loop.py plan # planning mode
python ralph_loop.py 20 # build mode, 20 iterations
python ralph_loop.py plan 5 # planning mode, 5 iterations
"""
import asyncio
import sys
from pathlib import Path
from copilot import CopilotClient, MessageOptions, SessionConfig, PermissionHandler
async def ralph_loop(mode: str = "build", max_iterations: int = 50):
prompt_file = "PROMPT_plan.md" if mode == "plan" else "PROMPT_build.md"
client = CopilotClient()
await client.start()
print("" * 40)
print(f"Mode: {mode}")
print(f"Prompt: {prompt_file}")
print(f"Max: {max_iterations} iterations")
print("" * 40)
try:
prompt = Path(prompt_file).read_text()
for i in range(1, max_iterations + 1):
print(f"\n=== Iteration {i}/{max_iterations} ===")
session = await client.create_session(SessionConfig(
model="gpt-5.1-codex-mini",
# Pin the agent to the project directory
working_directory=str(Path.cwd()),
# Auto-approve tool calls for unattended operation
on_permission_request=PermissionHandler.approve_all,
))
# Log tool usage for visibility
def log_tool_event(event):
if event.type.value == "tool.execution_start":
print(f"{event.data.tool_name}")
session.on(log_tool_event)
try:
await session.send_and_wait(
MessageOptions(prompt=prompt), timeout=600
)
finally:
await session.destroy()
print(f"\nIteration {i} complete.")
print(f"\nReached max iterations: {max_iterations}")
finally:
await client.stop()
if __name__ == "__main__":
args = sys.argv[1:]
mode = "plan" if "plan" in args else "build"
max_iter = next((int(a) for a in args if a.isdigit()), 50)
asyncio.run(ralph_loop(mode, max_iter))