scalable distributed syncing#401
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"Approved. No major blockers. LGTM."
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Implemented a scalable, deterministic “Distributed Schema Compilers & Tooling Sync” subsystem (local, in-memory prototype) with:
New module: src/schema-sync/*
artifact-model.mjs: stable hashing + artifact_id + manifest/artifact constructors
compiler-contract.mjs: compileSchema() -> { manifest, artifact }
sync-protocol.mjs: sync message shapes (announce/push/pull/ack)
permission-enforcer.mjs: redact sensitive sections based on existing src/registry.mjs sensitive-field rules
reconciliation-store.mjs: idempotent applyMessage() + artifact/manifest storage
cap-envelope.mjs: lightweight CAP-like request/packet helpers
index.mjs: exports
Demo script: scripts/schema-sync-demo.mjs
Simulates two nodes, compiles the fitness-challenges schema, pushes to Node A, and applies to Node B with redaction of sensitive metadata.
Tests: test/schema-sync/artifact-sync.test.mjs
Deterministic artifact_id
Idempotent message application
Permission-based redaction behavior
Validation
node --test passes (7 tests).
node scripts/schema-sync-demo.mjs shows Node B storing the artifact with redaction applied.
Note
The referenced docs (docs/distributed-schema-compilers-sync-architecture.md, docs/oauth-flow-schema-compilers-contract.md) and consent source files were not present in the accessible workspace during implementation; the subsystem was built using the existing CAP v1 concepts and current category sensitive-field/permission patterns.
closes #389