Publish Psyche protocol v1 schemas, golden vectors, and conformance runner

[BunsDev]

Outcome

Publish the first consumer-ready Psyche protocol release surface: versioned machine-readable schemas, canonical golden vectors, a compatibility policy, and a standalone conformance runner that adapters can execute without copying internal Rust structures by hand.

Parent roadmap: #9
Priority: P0 after #10
Target phase: Phase 1 — Sep 9–Sep 29, 2026
Accountable owner: @BunsDev

Protocol publication contract

• Inventory every public record kind, identifier prefix, enum, digest, transition, and structured denial currently covered by the G2 foundation.
• Classify each as stable-v1, experimental, internal, or deprecated.
• Publish versioned JSON Schemas or an explicitly justified equivalent for stable wire/storage records.
• Publish byte-exact canonical JSON and SHA-256 golden vectors.
• Publish positive, denial, stale-correlation, unknown-version, crash/restart, and downgrade fixtures.
• Provide a standalone CLI or package command that validates an adapter against the supported conformance profile.
• Make generated artifacts reproducible and fail CI on uncommitted drift.
• Document semantic versioning, compatibility windows, unknown-field/enum behavior, migration, downgrade, deprecation, and rollback.
• Produce a signed/checksummed immutable protocol artifact set for downstream pinning.

Required profiles

At minimum, the consumer profile must cover:

• contract and capability negotiation;
• stable session/execution correlation;
• snapshot/attempt binding;
• adoption and durable non-adoption proof;
• ambiguity reconciliation and fencing;
• ordered cursor/restart behavior;
• terminal authority;
• cancellation acknowledgement and unresolved outcomes;
• result/artifact binding;
• crash/restart persistence;
• structured denial and quarantine.

The existing C-S1 through C-S12 suites are the evidence baseline, not automatically the public artifact format.

Acceptance criteria

• A downstream repository can fetch one immutable release and run conformance without checking out Psyche source.
• Schema, fixture, and generated-language drift are detected deterministically.
• Every stable record has explicit canonical bytes and compatibility behavior.
• Unknown major versions and authority-widening changes fail closed.
• Minor-version evolution does not require expression-order or source-text coupling in consumers.
• The conformance runner emits bounded machine-readable results and never requires production credentials.
• Psyche Build can pin the artifact set in Prove Psyche Build as the first Psyche-conforming reference client #13.
• Release evidence identifies source SHA, artifact digests, toolchain, command, and result.

Non-goals

• Declaring every current internal Rust type stable.
• Publishing to crates.io merely for visibility.
• Requiring a networked daemon for ordinary conformance.
• Treating successful decode as proof of authorized execution.
• Skipping negative and recovery vectors.

Dependencies

• Land Psyche repository and agent-readiness foundation #10 repository and agent-readiness foundation.
• Define OpenCoven cross-repository protocol ownership and compatibility #12 ownership and compatibility policy must approve cross-repository boundaries before the profile is declared stable.

Evidence

Link the schema inventory, generated artifacts, fixture digests, conformance-runner PRs, release/tag, downstream dry run, and CI evidence.