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0.4.0 "Sentinel" — the governed-answer release

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@alexy alexy released this 04 Jul 16:47
v0.4.0
4c7db62

Where Goshawk opened the doors (MCP, A2A, /v1, cross-language crypto), Sentinel stands guard over what comes through them.

  • TypeDID envelope auth on /v1 (serve --require-auth): x-qg-envelope bound to the request path and body hash, Ed25519-verified against the envelope's did:key; failures are 401 receipts carrying the contract.
  • POST /v1/answer and the semantic-model registry (models/import/{osi,croissant}, models, search).
  • MCP stdio server (mcp-serve): dependency-free JSON-RPC 2.0, same governed surface as /v1.
  • Reverse crypto direction closed: PyTypeDidEnvelope::signed mints qg-python-compatible envelopes (same seed → same did:key).
  • Stack realigned to the 0.12 substrate wave: Grust 0.12.0 "Lobster", TypeSec 0.12.0 "Torcello", LakeCat 0.3.0 "Ocelot" — 40/40 green.
  • A second book: The QueryGraph Stack guide (docs/guide), plus the review deck and tri-format one-pager; the dedicated book gains the Goshawk/Sentinel chapter.

See CHANGELOG.md.

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