ephem-debugger-py 0.3.2

Dev-only observability for AI agent debugging

ephem-debugger-py

Dev-only observability middleware for Python web frameworks. Part of the debugger project.

Captures HTTP requests, console output, and browser-side data from your dev server. AI agents query this data through the dbg CLI.

Preview — under active development.

Install

pip install ephem-debugger-py

FastAPI

from fastapi import FastAPI
from ephem_debugger_py.middleware.fastapi import instrument

app = FastAPI()
instrument(app, port=8000)

Flask

from flask import Flask
from ephem_debugger_py.middleware.flask import init_debugger

app = Flask(__name__)
init_debugger(app, port=5000)

Django

Add to settings.py:

MIDDLEWARE = [
    'ephem_debugger_py.middleware.django.DebuggerMiddleware',
    # ... other middleware
]

DEBUGGER_PORT = 8000

Query with CLI

npx dbg status
npx dbg server console
npx dbg browser console
npx dbg browser network

How it works

1. Middleware captures HTTP request/response metadata and logging output
2. IPC bridge exposes data via Unix socket (or TCP on Windows)
3. Browser client script is auto-injected into HTML responses
4. dbg CLI queries the session — works the same across all languages

Other languages

• Node.js — @ephem-sh/debugger
• Go — ephem-debugger-go
• Rust — ephem-debugger-rs

License

MIT