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ci: verify every published package installs and carries provenance - #524
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bestax-migrate was excluded from verify-provenance because its published manifest carried an unresolved `workspace:^` specifier: `npm install` of it failed with EUNSUPPORTEDPROTOCOL and would have masked real signature failures. That is fixed and released (2.0.0), so restore it. Add it to the provenance assertion loop as well, not just the install list. Leaving that loop at two packages would mean a silently dropped attestation on bestax-migrate stays green forever, which is the exact hole that step exists to close. Also state what the install step is for. It already asserts installability — a failing `npm install` fails the job — but it reads as setup for the audit that follows. This is the only automated check that installs the *published* artifact rather than the workspace, which is why #412 shipped undetected. Closes #416
WalkthroughThe supply-chain workflow now installs ChangesPublished provenance verification
Estimated code review effort: 2 (Simple) | ~5 minutes Merge Risk: 🟡 Moderate · up to The workflow may verify provenance for a different package version than the one it installed if a registry tag changes between steps, creating a false-green security check. The PR needs this bounded correctness issue addressed or explicitly accepted before merge. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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In @.github/workflows/supply-chain.yml:
- Around line 304-305: Update the provenance-check logic for the packages
installed by the npm install command to obtain each installed version from npm
ls, then query npm view using the package name combined with that exact version
instead of relying on a mutable dist-tag.
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`npm view "$pkg"` re-resolves the `latest` dist-tag, which is mutable. The install step and this assertion resolved it independently, so a publish landing between them would have the job vouch for a version it never installed or audited. Read the version back out of the scratch tree instead, so all three steps describe one set of artifacts. Absent from the tree gets its own error rather than being folded into the "no provenance" message: a missing install and a dropped attestation want different investigations. Both paths still fail closed, per rule 4. Raised by CodeRabbit on #524.
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Deep review — 0 blocking · 2 advisory
| # | Severity | Area | Finding | Location |
|---|---|---|---|---|
| 1 | 🔵 Advisory | Robustness | Install list and provenance loop are hand-synced; a future published package (e.g. bestax-mcp once #502 lands) must be added to both by hand or it silently escapes the guard |
.github/workflows/supply-chain.yml:305,320 |
| 2 | 🔵 Advisory | Coverage | Guard verifies the registry artifact only; the pre-publish tarball path that let #412 ship is still unchecked (tracked in #437, explicitly out of scope) | .github/workflows/supply-chain.yml:299 |
Overall: The change is sound and does exactly what #416 asks — plus the correct extra step the issue's own diff omitted (adding bestax-migrate to the provenance-assertion loop, not just the install list; leaving it at two would let a dropped attestation stay green forever). I corroborated the key claims against the local bestax-migrate/package.json@2.0.0: runtime deps are all plain semver (no workspace:/catalog:), @allxsmith/bestax-bulma is dev-only so it neither breaks install nor gets dragged in, and publishConfig.provenance: true means the assertion loop will find an attestation. Security surface is unchanged — no permissions:, trigger, action-SHA, or credential change; the job still inherits contents: read. The riskiest part is simply that this reds the weekly job the moment the published bestax-migrate ever regresses, which is the intended guard, not a bug. Human focus: none required beyond confirming the cited run stayed green (network was blocked in my sandbox, so I verified the manifest statically rather than re-installing from the registry).
Residual risk:
- A published package silently loses installability/provenance and CI stays green — refuted for all three shipped packages:
bulma-ui,create-bestax, and nowbestax-migrateare in both the install list and the assertion loop, and the assertion fails closed on empty/network/404. bestax-mcpescapes the guard — currently correct, since #502 means nothing is published to install; becomes a live gap the day #502 lands, at which point this list must be updated (advisory #1).- Pre-publish tarball regression — still unguarded, but knowingly deferred to #437 (advisory #2), so not a gap introduced by this PR.
🏄 Clean little set wave, dude — paddled out, added the third board to the rack and the wax check the ticket forgot, no gnarly permission wipeouts anywhere. Registry's glassy and green; ship it and ride on.
…aims bestax-mcp was left out of verify-provenance on the strength of #502, which says CI has no release step for it. That issue is stale: ci.yml has had a `Semantic Release (bestax-mcp)` step since the pipeline change, and 1.0.0 is on the registry with a SLSA provenance attestation. Verified it installs clean alongside the other three, so it belongs in both lists. SECURITY.md's supported-versions table had drifted two majors behind on two packages and never gained a row for the fourth: create-bestax is 4.x not 3.x, bestax-migrate is 2.x not 1.x, and bestax-mcp was missing entirely. Both majors were the Node 22 requirement from #447, not an API break. That table is what tells users which line receives security fixes, so being wrong about it is a security-relevant inaccuracy rather than a docs nit. The provenance bullet said "all three published packages" for the same reason. The docs security guide carried a narrower version of the same claim, naming only two of the four packages.
allxsmith
changed the title
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`npm view "$pkg"` re-resolves the `latest` dist-tag, which is mutable. The install step and this assertion resolved it independently, so a publish landing between them would have the job vouch for a version it never installed or audited. Read the version back out of the scratch tree instead, so all three steps describe one set of artifacts. Absent from the tree gets its own error rather than being folded into the "no provenance" message: a missing install and a dropped attestation want different investigations. Both paths still fail closed, per rule 4. Raised by CodeRabbit on #524.
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🎉 This PR is included in version 2.0.1 🎉 The release is available on: Your semantic-release bot 📦🚀 |
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🎉 This PR is included in version 5.11.2 🎉 The release is available on: Your semantic-release bot 📦🚀 |
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🎉 This PR is included in version 4.1.1 🎉 The release is available on: Your semantic-release bot 📦🚀 |
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🎉 This PR is included in version 1.0.1 🎉 The release is available on: Your semantic-release bot 📦🚀 |
Closes #416.
bestax-migratewas excluded fromverify-provenancebecause its published manifest carried an unresolvedworkspace:^specifier —npm installof it failed withEUNSUPPORTEDPROTOCOL(#412) and would have masked real signature failures. #412 is fixed and released, #411 is merged, so the workaround becomes a permanent regression guard.While verifying that, two further gaps turned up. The job now covers all four published packages, and the user-facing claims about which versions are supported are correct again.
What changed
.github/workflows/supply-chain.yml— theverify-provenancejob:npm installlist and thefor pkg in …provenance loop both gainbestax-migrateandbestax-mcp. The issue's diff only named the install list; leaving the assertion loop behind would mean a silently dropped attestation stays green forever, which is the exact hole that step exists to close.npm view "$pkg@$version") instead of re-resolving the mutablelatestdist-tag. Install,npm audit signatures, and the assertion now provably describe one set of artifacts rather than three independent resolutions. Absent-from-tree gets its own::error::— a missing install and a dropped attestation want different investigations. Both paths still fail closed, per rule 4.SECURITY.mdanddocs/docs/guides/security.md— the supported-versions table had drifted two majors behind on two packages and never gained a row for the fourth:create-bestaxis 4.x not 3.x,bestax-migrateis 2.x not 1.x, andbestax-mcpwas missing entirely. Both majors were the Node 22 requirement from #447, not an API break. That table is what tells users which line receives security fixes, so being wrong about it is a security-relevant inaccuracy rather than a docs nit. The provenance bullet said "all three published packages" for the same reason, and the docs guide named only two of the four.bestax-mcp— a correction to this PR's own first draftI originally excluded
bestax-mcphere citing #502 ("CI has noSemantic Release (bestax-mcp)step, so the package can never publish"). #502 is stale.ci.yml:298has that step, andbestax-mcp@1.0.0is on the registry with a SLSA provenance attestation and clean dependencies. Verified it installs alongside the other three before adding it.That issue is still open and should probably be closed, but that is a maintainer call rather than something to fold into this PR.
Security review
Per
.github/CLAUDE.md, this is a bottom-row change, and here is the check rather than the assertion:permissions:change.verify-provenancedeclares none and inherits the workflow-levelcontents: read.verify-provenanceis one of the three jobs grandfathered by the "existing live job" clause. Addingharden-runnerto it is out of scope here.The change widens what the job installs, which is the point of the guard. It cannot widen what the job is permitted to do.
Rejected alternative: hoisting the package list into a job-level
env:consumed by both steps. It removes the drift risk the sync comment only warns about, but both call sites would then depend on unquoted shell word-splitting inside a security check — not worth the subtlety for two lists fifteen lines apart.Verification
Dispatched on this branch after each commit. Latest — run 32041442143 —
verify-provenancegreen, release-only jobs skipped as expected:Both fail-closed branches were also exercised directly: an empty scratch tree produces the not-in-tree error, and
bestax-migrate@0.0.1(predates provenance) yields an empty predicate.bestax-migrate@2.0.0's published manifest was checked directly too — all four dependencies are plain semver ranges, noworkspace:/catalog:in any section, and it does not drag in@allxsmith/bestax-bulma(the second bug from #417).Out of scope
#437 (nothing installs the packed tarball pre-publish) stays open. That check runs
npm packand installs the tarball before publishing; this one verifies what is already on the registry.