3bef6af241
- PLATFORM_URL: replace unreachable http://platform:8080 mesh-only default with Docker-aware detection (host.docker.internal in containers, localhost for local dev) across all workspace Python modules and the git-token-helper shell script. - WORKSPACE_ID: add fail-fast validation in main.py (SystemExit if empty) consistent with coordinator.py / a2a_cli.py patterns already in place. - INCIDENT_LOG.md: replace all 3 F1088 credential types with ***REDACTED*** (sk-cp- 2x, github_pat_ 2x, ADMIN_TOKEN base64 3x). Fixes #1124, #1333. Co-authored-by: Molecule AI Dev Lead <dev-lead@agents.moleculesai.app>
86 lines
3.1 KiB
Python
86 lines
3.1 KiB
Python
"""A2A communication tools — framework-agnostic delegation and peer discovery.
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These are plain async functions that any adapter can wrap in its native tool format.
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The LangChain @tool versions are in tools/delegation.py.
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"""
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import os
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import uuid
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import httpx
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PLATFORM_URL = os.environ.get("PLATFORM_URL", "http://host.docker.internal:8080")
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WORKSPACE_ID = os.environ.get("WORKSPACE_ID", "")
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async def list_peers() -> list[dict]:
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"""Get this workspace's peers from the platform registry."""
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async with httpx.AsyncClient(timeout=10.0) as client:
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try:
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resp = await client.get(f"{PLATFORM_URL}/registry/{WORKSPACE_ID}/peers")
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if resp.status_code == 200:
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return resp.json()
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return []
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except Exception:
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return []
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async def delegate_task(workspace_id: str, task: str) -> str:
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"""Send a task to a peer workspace via A2A and return the response text."""
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async with httpx.AsyncClient(timeout=120.0) as client:
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# Discover target URL
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try:
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resp = await client.get(
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f"{PLATFORM_URL}/registry/discover/{workspace_id}",
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headers={"X-Workspace-ID": WORKSPACE_ID},
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)
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if resp.status_code != 200:
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return f"Error: cannot reach workspace {workspace_id} (status {resp.status_code})"
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target_url = resp.json().get("url", "")
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if not target_url:
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return f"Error: workspace {workspace_id} has no URL"
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except Exception as e:
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return f"Error discovering workspace: {e}"
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# Send A2A message
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try:
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a2a_resp = await client.post(
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target_url,
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json={
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"jsonrpc": "2.0",
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"id": str(uuid.uuid4()),
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"method": "message/send",
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"params": {
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"message": {
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"role": "user",
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"messageId": str(uuid.uuid4()),
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"parts": [{"kind": "text", "text": task}],
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},
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},
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},
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)
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data = a2a_resp.json()
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if "result" in data:
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parts = data["result"].get("parts", [])
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return parts[0].get("text", "(no text)") if parts else str(data["result"])
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elif "error" in data:
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return f"Error: {data['error'].get('message', str(data['error']))}"
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return str(data)
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except Exception as e:
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return f"Error sending A2A message: {e}"
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async def get_peers_summary() -> str:
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"""Return a formatted string of available peers for system prompts."""
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peers = await list_peers()
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if not peers:
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return "No peers available."
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lines = []
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for p in peers:
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name = p.get("name", "Unknown")
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pid = p.get("id", "")
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role = p.get("role", "")
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status = p.get("status", "")
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lines.append(f"- {name} (ID: {pid}) — {role} [{status}]")
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return "Available peers:\n" + "\n".join(lines)
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