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feat: GDI (Governed Decision Intelligence) conformance driver#7

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feat: GDI (Governed Decision Intelligence) conformance driver#7
mj3b wants to merge 4 commits into
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@mj3b mj3b commented Apr 27, 2026

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Adds a GDI (Governed Decision Intelligence) conformance driver as the 5th
cross-verifying implementation.

Driver: implementations/gdi/

Produces v2 structured-envelope receipts with a GDR payload embedded in
payload.gdr. The GDR captures pre-decision reasoning state before the
tool fires: confidence score against institutional thresholds, gate
classification, evidence completeness per source, and accountability chain.
result_hash = sha256(JCS(GDR)) seals that payload into the signed receipt.

All three conformance checks pass:

  • Schema: v2 envelope shape
  • Signatures: Ed25519 / JCS canonical, verified by @veritasacta/verify --key
  • Chain: sequence order + parent_receipt_hash linkage

Note on Check 2: this driver uses the shared fixture keypair directly
rather than a hosted JWKS endpoint. Pass --key $(cat implementations/gdi/key.hex)
to @veritasacta/verify. Happy to add a one-line update to conformance/verify.sh
to check for key.hex in the driver directory if that pattern is useful for
other drivers.

Relates to microsoft/agent-governance-toolkit#276.

mj3b added 4 commits April 27, 2026 09:27
Implement GDI driver to produce structured-envelope receipts with embedded GDR payloads, capturing decision-making states and ensuring compliance with specified wire formats.
This script serves as a conformance driver for GDI, handling fixture reading and receipt writing.
Added README.md for GDI Driver detailing its purpose, requirements, and usage instructions.
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