Sombra

Sombra (Portuguese for "shadow") is a local PII anonymization proxy for agent and LLM CLIs. It intercepts traffic and masks sensitive Brazilian data — CPF, CEP, CNPJ, street addresses, e-mails and names — in real time before it reaches a remote LLM provider.

Zero sensitive data is persisted remotely.

Quickstart

cp .env.example .env    # set your OPENCODE_ZEN_API_KEY
make up                 # start the stack (analyzer, anonymizer, litellm)
make call-analyzer      # verify PII detection

Documentation

Full docs — install, configure OpenCode, architecture, and development — live in the docs site. Run it locally with:

make docs-serve

Author

Igor Brandao - <@mrbrandao>

License

Apache-2.0 — see LICENSE.