Anamnesis — JSON Schemas

The open cognitive-fingerprint standard (formerly Phaedo Protocol). v0.1.x.

The normative spec, the MCP binding, and the reference server live at github.com/phaedo-labs/phaedo-mcp. These files are the wire-format contracts:

• fingerprint.schema.json
  The cognitive fingerprint: 8 signal layers + consult policies
• vault-data.schema.json
  The vault-data envelope contract (spec Appendix C)
• consultation-request.schema.json
  Agent → fingerprint: the decision-point query (§10.2)
• consultation-response.schema.json
  proceed / clarify / escalate / decline / insufficient_signal + confidence (§10.3)
• consultation-policy.schema.json
  User-authored deference policies & standing authorizations (§10.5)
• authorization-check-response.schema.json
  Deterministic pre-flight over standing authorizations
• consultation-receipt.schema.json
  The encrypted, append-only audit record (§10.6)
• decision-risk-signal.schema.json
  Per-signal decision & risk schema with evidence basis

Conformance. Anamnesis defines three levels — Level 0 (Projection Consumer) needs no cryptography: read the phaedo://fingerprint/projection resource and insert it (any MCP host qualifies), through Level 2 (full producer). Prove conformance with the published suite: phaedo-validate (spec/validate-fingerprint.mjs), the §12 test vectors (spec/test-vectors.mjs), and a self-identification statement (spec/conformance.json). spec/test-schemas.mjs ties the schemas to what the reference implementation actually emits, so the standard and the product can't drift.