Each per-feature AGENTS.md now reflects the post-Plan-9 layout:
entity/error paths, public-API split (./ui), use-case schemas, presenter
pattern, feature-scoped tRPC error map, and feature-specific
errors-to-codes table.
core-testing/AGENTS.md gains a Plan 9 test-patterns section documenting
R25 (output validation), R26 (router error mapping), R27/R28
(presenter shape) test obligations.
auth: documents real PayloadUsersRepository + AuthenticationService and
the deferred session methods.
media: documents the full Clean Architecture scaffold introduced in
Plan 8.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Captures the decision to add @repo/core-testing, factories, contract
suites, vitest safety defaults, coverage thresholds, Storybook
test-runner, and CI as one cohesive TDD foundation. Per-feature
AGENTS.md gains a Tests section pointing to factories, contract suite,
and the canonical test commands.
Spec: §7.4, §7.5
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
