new-source-parserlisted

# Adding a source parser Parsers are decant's extension point (invariant 6), and the canonical workflow is `docs/prompts/add-source.md` — read it and work through it top to bottom. It owns the full checklist: discovery, parser rules, the capability report the PR must include, synthetic fixtures, tests, and golden regeneration. Its privacy rules are hard requirements, not suggestions. Decant-side anchors while you work: - Read `src/sources/codex.ts` first as the reference implementation, and `src/model.ts` for the normalized shape every parser must produce. - Parsers return data and issues; never throw on malformed input, and never write to stdout/stderr (invariant 1). Output and exit-code policy belong in `src/cli.ts` and nowhere else. - If the format needs a new column, that is a schema migration, and migrations freeze once committed. Use the `new-migration` skill. ## Gate `bun test`, `bunx tsc --noEmit`, `bunx biome check .`, or `just check` for all three plus the distribution smoke.