agent-runtime/agent/__init__.py
Nico 1000411eb2 v0.15.0: Frame engine (v3), PA + Expert architecture (v4-eras), live test streaming
Frame Engine (v3-framed):
- Tick-based deterministic pipeline: frames advance on completion, not timers
- FrameRecord/FrameTrace dataclasses for structured per-message tracing
- /api/frames endpoint: queryable frame trace history (last 20 messages)
- frame_trace HUD event with full pipeline visibility
- Reflex=2F, Director=4F, Director+Interpreter=5F deterministic frame counts

Expert Architecture (v4-eras):
- PA node (pa_v1): routes to domain experts, holds user context
- ExpertNode base: stateless executor with plan+execute two-LLM-call pattern
- ErasExpertNode: eras2_production DB specialist with DESCRIBE-first discipline
- Schema caching: DESCRIBE results reused across queries within session
- Progress streaming: PA streams thinking message, expert streams per-tool progress
- PARouting type for structured routing decisions

UI Controls Split:
- Separate thinker_controls from machine controls (current_controls is now a property)
- Machine buttons persist across Thinker responses
- Machine state parser handles both dict and list formats from Director
- Normalized button format with go/payload field mapping

WebSocket Architecture:
- /ws/test: dedicated debug socket for test runner progress
- /ws/trace: dedicated debug socket for HUD/frame trace events
- /ws (chat): cleaned up, only deltas/controls/done/cleared
- WS survives graph switch (re-attaches to new runtime)
- Pipeline result reset on clear

Test Infrastructure:
- Live test streaming: on_result callback fires per check during execution
- Frontend polling fallback (500ms) for proxy-buffered WS
- frame_trace-first trace assertion (fixes stale perceived event bug)
- action_match supports "or" patterns and multi-pattern matching
- Trace window increased to 40 events
- Graph-agnostic assertions (has X or Y)

Test Suites:
- smoketest.md: 12 steps covering all categories (~2min)
- fast.md: 10 quick checks (~1min)
- fast_v4.md: 10 v4-eras specific checks
- expert_eras.md: eras domain tests (routing, DB, schema, errors)
- expert_progress.md: progress streaming tests

Other:
- Shared db.py extracted from thinker_v2 (reused by experts)
- InputNode prompt: few-shot examples, history as context summary
- Director prompt: full tool signatures for add_state/reset_machine/destroy_machine
- nginx no-cache headers for static files during development
- Cache-busted static file references

Scores: v3 smoketest 39/40, v4-eras fast 28/28, expert_eras 23/23

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 17:10:31 +02:00

56 lines
1.7 KiB
Python

"""Cognitive Agent Runtime — modular package.
uvicorn entrypoint: agent:app
"""
import logging
from pathlib import Path
from dotenv import load_dotenv
load_dotenv(Path(__file__).parent.parent / ".env")
logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(name)s] %(message)s", datefmt="%H:%M:%S")
from fastapi import FastAPI, Request
from fastapi.responses import FileResponse
from fastapi.staticfiles import StaticFiles
from starlette.middleware.base import BaseHTTPMiddleware
from .api import register_routes
class NoCacheStaticMiddleware(BaseHTTPMiddleware):
"""Prevent browser/CDN caching of static files during development."""
async def dispatch(self, request: Request, call_next):
response = await call_next(request)
if request.url.path.startswith("/static/"):
response.headers["Cache-Control"] = "no-cache, no-store, must-revalidate"
response.headers["Pragma"] = "no-cache"
return response
STATIC_DIR = Path(__file__).parent.parent / "static"
app = FastAPI(title="cog")
# Register all API + WS routes
register_routes(app)
# Serve frontend from same process (fallback for non-split deploy)
# When running behind cog-frontend nginx, these paths won't be hit
@app.get("/")
async def index():
resp = FileResponse(STATIC_DIR / "index.html")
resp.headers["Cache-Control"] = "no-cache"
return resp
@app.get("/tests")
async def tests_page():
return FileResponse(STATIC_DIR / "tests.html")
@app.get("/callback")
async def callback():
"""OIDC callback — serves the same SPA, JS handles the code exchange."""
return FileResponse(STATIC_DIR / "index.html")
app.mount("/static", StaticFiles(directory=STATIC_DIR), name="static")