The agent-roles catalog content files move from JSON to YAML so each role's long
`instructions` system prompt is stored as a literal block scalar (`|-`): editing
one sentence now produces a line-by-line diff and the prompt is editable as plain
multi-line text instead of a single escaped JSON string.
Data:
- `index.json` -> `index.yaml`, `bundles/<id>/<lang>.json` -> `<lang>.yaml`
(old `.json` deleted). Converted programmatically via the `yaml` library with
`lineWidth: 0`; round-trip verified deepEqual against the old JSON, so the
resolved role content is byte-for-byte identical and no `version` is bumped
(content-hash lock unchanged).
Server (`AiAgentRolesCatalogProvider`):
- parse with `yaml`'s safe default (JSON-compatible) schema instead of
`JSON.parse` — `strict: true` (rejects unknown tags / duplicate keys) and
`maxAliasCount: 100` (billion-laughs guard); no custom `!!` tags / no code
execution. Fetched paths become `index.yaml` / `<lang>.yaml`. The streaming
1 MB size cap, `redirect: 'error'`, 10s timeout and `^[a-z0-9-]+$`
path-traversal/SSRF guard are unchanged; the hand-written type guards are
untouched (`instructions` is still a string after parsing).
- add `yaml` as a direct server dependency (already in the lockfile as a
transitive dep).
Catalog tooling:
- `scripts/check.mjs` parses the catalog as YAML (lockfile stays JSON); pin
`yaml` as a devDependency of the catalog package.
Tests:
- provider spec fixtures serialized with `yaml`; new tests for the block-scalar
`instructions` round-trip (exact multi-line string), malformed YAML and
strict duplicate-key rejection -> BadGateway; size-cap and path-traversal
cases retargeted to the `.yaml` paths.
Docs: README, `.env.example`, `catalog-types.ts` comments and CHANGELOG updated
to the YAML layout. `AI_AGENT_ROLES_CATALOG_URL` base-URL contract unchanged.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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