@getbourdon/l5

The L5 agent-memory manifest layer of Bourdon — the per-agent public memory glossary that L6 federation aggregates across agents.

Python (pip install bourdon) is the oracle. This TypeScript mirror is conformant iff it reproduces the oracle's output on the shared @getbourdon/conformance fixtures.

What's in here

• schema/L5_schema.json — the normative JSON Schema (draft 2020-12), copied byte-identical from the Python repo (spec/L5_schema.json). $id = https://bourdon.ai/schema/L5_manifest_v0.1.json.
• Generated types (src/types.gen.ts) — produced from the schema via json-schema-to-typescript (pnpm --filter @getbourdon/l5 gen). Hand-writing the wire types is banned; regenerate instead.
• validateManifest — ajv (2020-12 + formats) compiled over the same schema. Returns { valid, errors } where each error carries keyword + ajv-style instancePath.
• applyVisibility / filterForFederation — the visibility model. Precedence (highest first): private_tags ▸ explicit visibility ▸ team_tags ▸ policy.default (or public). Private entities are dropped from federation.
• toDict — the byte-faithful to_dict() port (the L6 change-detection hash key): drops None/undefined and empty-array fields, keeps Visibility as its lowercase value, and emits keys in dataclass field order.
• writeL5 / writeL5Dict / readL5Dict — atomic YAML write (tmp + fsync + rename) and lenient read.

import { makeManifest, toDict, validateManifest, writeL5 } from "@getbourdon/l5";

const manifest = makeManifest({
  spec_version: "0.1",
  agent: { id: "alpha-agent", type: "note-capture" },
  last_updated: "2026-06-29T12:00:00+00:00",
});

const { valid, errors } = validateManifest(toDict(manifest));
writeL5(manifest, "/path/to/agents/alpha-agent.yaml");

Determinism notes (parity-critical)

• Entity emits valid_from / valid_to after visibility (they were appended later in the dataclass).
• A present visibility_policy always emits default (defaults to "public") even if the caller omits it.
• Empty arrays are dropped; null/undefined fields are dropped — never serialized as null or [].

License: Apache-2.0 (the wire-contract surface is permissive so third parties can build conformant implementations). The Bourdon engine packages are BUSL-1.1.