Yes, completely. SigMap runs entirely on your machine — no API calls, no cloud, no telemetry. It reads your files and writes a context file locally. Works on a plane, in a VPN-locked environment, anywhere.

Yes. Flask goes from 242,600 tokens down to 3,400 — 98.6% reduction. Django, FastAPI, any Python project works the same way. The Python extractor captures functions, class methods, dataclass fields, and Pydantic BaseModel fields including return types.

npx sigmap — no config needed.