Delete the pre-generated starters/ directory tree (previously
synced from packages/ by generate-starters.ts). Add
extract-starter.ts which produces a starter tarball on demand
from any integration. Move shared starter template files to
showcase/shared/starter-template/.
Extract drift-comparison logic out of validate-pins.ts into
validate-pins-core.ts (pure module, CLI re-exports + remains thin
orchestrator) and extract the formatter out of
redirect-decommission-report.ts into redirect-decommission-core.ts.
Add vitest coverage for both cores with baseline fixtures so
showcase-ops ProbeDrivers can reuse the same logic without forking.
Drop legacy generate-status.ts — superseded by showcase-ops live
status feed.
The scrub and #4084 touched the same surface: #4084 re-added an `open:`
generative_ui profile listing `open-gen-ui`/`open-gen-ui-advanced`, and
re-added both features to `constrained-explicit.allowed`. Extending the
branch's scrub to both re-additions keeps the semantic consistent with
the schema (which already dropped `open` from the approaches enum).
- `showcase/shared/constraints.yaml`: drop `open-gen-ui` +
`open-gen-ui-advanced` from `constrained-explicit.allowed`; drop main's
re-added `open:` profile entirely.
- `showcase/packages/langgraph-python/manifest.yaml`: drop the now-orphan
`open-gen-ui` + `open-gen-ui-advanced` feature and demo entries
(validator confirmed they had no allowed approach left).
- Regenerated `showcase/shell/src/data/registry.json` + sibling
`shell-docs`/`shell-dojo` registries and `constraints.json` via
`pnpm --dir showcase/scripts generate-registry`. All 17 integrations
validate.
`feature-registry.json` intentionally still defines both features — the
original scrub commits (2b996c54d, 27f886e59) left it untouched, so the
demo source files on disk also stay. Follow-up deletion if desired is
out of scope for this merge.
Audits each showcase package's manifest-declared demos for matching
spec (tests/e2e/*.spec.ts) and qa/*.md coverage, and enforces a
monotonic demo-count baseline via fail-baseline.json.
Key design:
- PackageIssue tagged union (13 variants) cleanly separates MUST
errors from warnings; deriveMessage is the single renderer so new
variants cannot emit mismatched prose.
- ProbeResult tagged union (missing | ok | unreadable) driven by
statSync + errno inspection, distinguishing ENOENT from EACCES and
surfacing ENOTDIR as a misconfiguration rather than a silent miss.
- runParityImpl isolates each slug's audit in try/catch; a crash in
one slug surfaces as a crashed PackageIssue variant and forces
EXIT_INTERNAL without aborting siblings.
- runParity never throws for content errors. InvalidBaselineError
covers coerceBaseline failures; unknown errors route to
EXIT_INTERNAL via formatErrorChain (walks .cause with cycle
guard + depth cap).
- parseMainArgs rejects unrecognised flags and duplicate --baseline
with EXIT_INVALID_INPUT (2), mirroring audit.ts parseArgs
discipline.
- BASELINE_DEMO_COUNT default must match
fail-baseline.json.baselineDemoCount; enforced by
__tests__/baseline-sync.test.ts.
- Exit codes: 0 ok, 1 should-warnings-only, 2 invalid-input, 3
unreadable, 4 internal, 5 must-failure.
Tests cover every PackageIssue variant, every exit code
(in-process + subprocess), per-slug crash isolation, EACCES routing,
ENOTDIR classification, cascade suppression when tests/e2e or qa
dirs are unreadable, and baseline coercion edge cases (leading
zeros, negative, float, hex, non-numeric).
Compares framework dependency pins across showcase/packages/*/ and
the corresponding dojo examples/integrations/* trees, flagging drift
between the two and rejecting non-exact specs on the showcase side.
Key design:
- Parses package.json, requirements.txt, and pyproject.toml
(including Poetry's [tool.poetry.dependencies] and PEP 621
[project.dependencies] / optional-dependencies). Separate jsDeps
and pythonDeps maps prevent cross-ecosystem name collisions.
- isExactSpec enforces exact-version pins per ecosystem (npm: no
operators, workspace refs, or ranges; Python: ==X / ===X / ~=X
with PEP 440 body). Symmetric rejection of bare MAJOR-only forms.
- parseRequirementsTxt and parsePyprojectToml thin wrappers throw
when the detailed form produced skipped[] or dropped[] entries,
preventing silent data loss in simpler callers.
- canonicalizeDepMap canonicalises names per PEP 503 and surfaces
same-file collisions with differing specs as warnings.
- First-writer-wins at both file and package levels.
- UnreadableInputError carries an optional partialReport so an
infra failure mid-slug-loop preserves already-collected drift
findings for other slugs.
- Exit codes: 0 ok, 1 drift, 2 internal, 3 unreadable.
fail-baseline.json is the single source of truth for the CI ratchet
(validatePinsFailCount + validatePinsFailHash) and the demo-count
floor (baselineDemoCount, cross-checked against validate-parity.ts
in a dedicated sync test).
Test coverage spans every parser variant, EACCES routing via chmod
probe + fs spies, exit-code taxonomy subprocess tests, partial-report
preservation on mid-loop infra throws, and Poetry/PEP 503 edge cases
via committed fixture files under __tests__/fixtures/pins/.
Jordan Ritter