One loader: runner/harness/meta.py::load(recipe) -> RecipeMeta (frozen dataclass,
attribute access), backed by the declarative KEYS registry (14 final keys + 3
P2-deprecated). The ONLY exec() of tests/<recipe>/recipe_meta.py. Validation per
the locked decision: unknown ALL-CAPS top-level name or type mismatch = MetaError
(hard error at load); underscore-prefixed names recipe-private; callables only on
hook-typed keys.
Migrated all six legacy loaders (spec §4 L1–L6):
- run_recipe_ci.py::_load_meta deleted; orchestrator loads once, passes meta down
- tests/conftest.py::_recipe_meta deleted; meta fixture returns full RecipeMeta (R3)
- lifecycle.py::_recipe_extra_env/_recipe_meta_flag deleted; deploy_app takes meta
- deps.py::declared_deps deleted; callers read meta.DEPS
- canonical.py::is_enrolled reads through meta.load()
- screenshot.py now actually receives SCREENSHOT through the orchestrator path (R2
fix; proven by unit test through the real load path)
Mumble private constants underscore-prefixed (_WELCOME_TEXT_MARKER/_MAX_USERS) +
importers fixed. New tests/unit/test_meta.py (all-recipes-load-clean typo gate,
MetaError cases, spec §2 baseline defaults, underscore exemption, doc sync). Docs
§4 key table now GENERATED from the registry (scripts/gen-meta-docs.py); drift
fails CI.
Verified on cc-ci: cc-ci-run -m pytest tests/unit -q -> 175 passed; scripts/lint.sh -> PASS.
harness/screenshot.py: best-effort Playwright capture of the live app (reuses harness browser).
Default = landing page (credential-free, secret-safe R7); recipes needing post-login opt into a
recipe-meta SCREENSHOT hook responsible for avoiding secret pages. Every failure swallowed -> None
(cosmetics never block, R7). Pure helpers unit-tested. Orchestrator wiring + live demo come after U0
PASSes (avoid deploy contention with the Adversary's cold U0 re-runs).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
