fix(templates): fail when a stack is handed a tool it is not given - #2893
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A key added to a parent stack's `package.lisa.json` force section is written
verbatim into every child stack's package.json. Inheritance is keyed on the
type hierarchy and never on the receiving stack's toolchain, so a Jest stack
and a vitest stack inherit identically — and an unreferenced script costs
nothing and proves nothing until something invokes it, which can be weeks
later, in a consumer, from a pre-push hook. The invisibility is the defect;
the one bad pin is only its first symptom.
The check resolves each stack the way `apply` does — through
`PackageLisaStrategy.planPackageJson`, not a second copy of the merge rules —
and asks whether every tool a resolved script names comes from a package that
stack actually receives. Two properties keep it from becoming a roster:
- the stacks come from `PROJECT_TYPE_HIERARCHY`, so adding one is covered with
no edit here;
- which tools are *governed* is derived from the templates too. A tool is
governed when some stack pins a package providing it. Tools no stack pins
(`node`, `tsc` before this commit, `bash`, `docker`) are the host's to
supply and are ignored — but the moment one stack pins a tool, every stack
whose scripts name it must pin it too. That asymmetry is exactly what makes
an inherited pin dangerous, so the exemption can never hide the hazard.
Binary names come from each installed package's own `bin` field, so `tsc` maps
to typescript and `ast-grep` to @ast-grep/cli with no alias table, and
`@types/node` — which declares no binary — is not mistaken for the provider of
`node`. That reading is required rather than preferred: with no installed
packages to read, the map would have to guess from names, which cannot see
that `@playwright/test` provides `playwright`. The check refuses instead of
degrading, because an empty result from a check that could not do its job is
the failure mode this whole class is made of.
Restoring the original defect reproduces it by name: with expo's own
`test:cov:unit` pin deleted, the check reports
expo: script "test:cov:unit" runs `vitest` (inherited from typescript)
but expo is given none of: vitest
The check found six live instances of the same class and they are fixed here.
The typescript base forces lint, format, typecheck, prepare and six vitest
scripts while pinning none of the tools they name, so a project detected as
plain `typescript` received commands it could not run; two stacks pinned the
same toolchain for themselves, which is what made those tools governed while
five stacks went without. The base now supplies them as `defaults`, where a
host's own pin wins, per the force/defaults/merge semantics. vitest is pinned
there too and removed on the Jest stack, following the entry that stack
already carries for the vitest mutation runner — a Jest project must not be
handed a runner it cannot use. nestjs pinned tsx for its migration scripts
nowhere; it does now.
The pair-specific coverage-unit runner guard still stands: it asserts
something stronger about one pair of keys that no dependency-derived check can
see.
Work-Item: #2848
Co-Authored-By: Claude <noreply@anthropic.com>
CodySwannGT
enabled auto-merge
August 22, 2026 03:56
Contributor
|
Important
This repository does not receive automatic reviews because it has fewer than 10 stars. ⚙️ Run configurationConfiguration used: Repository YAML (base), Organization UI (inherited) Review profile: CHILL Plan: Pro Plus Run ID: 📝 WalkthroughWalkthroughThe change adds template toolchain validation, updates template development dependencies, and records the modified configuration and test files in the upstream evidence manifest. ChangesTemplate toolchain validation
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🔵 Low · up to The PR prevents inherited scripts from naming tools a stack does not receive, but two supported command and package-binary forms can still evade that validation. The change is mergeable with explicit owner follow-up to close these bounded correctness gaps. Sequence Diagram(s)sequenceDiagram
participant TemplateTests
participant findToolchainViolations
participant PackageLisaStrategy
participant InstalledPackageManifests
TemplateTests->>findToolchainViolations: validate template stacks
findToolchainViolations->>PackageLisaStrategy: planPackageJson
PackageLisaStrategy-->>findToolchainViolations: resolved scripts and packages
findToolchainViolations->>InstalledPackageManifests: index package binaries
InstalledPackageManifests-->>findToolchainViolations: governed tools and providers
findToolchainViolations-->>TemplateTests: ToolchainViolation records
Suggested reviewers: 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Actionable comments posted: 2
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Inline comments:
In `@tests/helpers/template-toolchain.ts`:
- Around line 77-82: Update the command classification around SCRIPT_DELEGATES
and commandTools so bun run only delegates when it targets a package script;
otherwise resolve the requested binary like other executable commands,
preserving script delegation for actual bun scripts. Add a test covering
commandTools("bun run vitest") when vitest is unavailable and assert that the
binary-resolution path is used rather than returning no tool.
- Around line 187-196: Update binariesOf to handle manifests with
directories.bin when bin is absent by enumerating the declared binary-directory
entries and returning those executable names. Add or adjust a fixture using an
installed package manifest with directories.bin so the package-name fallback is
not used and the toolchain check includes the discovered binaries.
🪄 Autofix
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Organization UI (inherited)
Review profile: CHILL
Plan: Pro Plus
Run ID: a604999e-54b1-499b-923a-c929417372e3
📒 Files selected for processing (6)
expo/package-lisa/package.lisa.jsonnestjs/package-lisa/package.lisa.jsonsrc/core/upstream-evidence-manifest.tstests/helpers/template-toolchain.tstests/unit/config/template-script-toolchain.test.tstypescript/package-lisa/package.lisa.json
Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.
Both findings from review, and both are the failure this check exists to catch
turned on the check itself: it reported success while proving nothing.
1. `bun run <name>` is not always script delegation. Bun's documented resolution
order is scripts, then source files, then `node_modules/.bin`, then $PATH —
so `bun run vitest` in a stack with no `vitest` script runs the vitest
BINARY. Every `bun` command was treated as delegation, so `commandTools`
returned no tool at all and a stack missing that dependency passed.
Scoped to `bun` deliberately. `npm run <name>`, `pnpm run` and `yarn run`
fail when no such script exists rather than falling through to a binary, so
for those the next word really is always a sibling script and reading it as
a tool would invent violations. Sibling script names now reach `commandTools`
from the call site, which already had them, so the distinction is made
against the stack's real scripts rather than a guess.
2. `binariesOf` read `bin` only. npm also exposes every file in
`directories.bin` as an executable, so a package declaring only that field
appeared to provide nothing — its binary was governed by no package, and a
child stack that dropped the dependency passed.
Three tests, each confirmed to FAIL against the pre-fix helper and pass with it,
with the whole file green either way otherwise (15 passed / 3 failed pre-fix,
15 passed post-fix):
reads a binary `bun run` falls through to when no such script exists
expected [] to strictly equal [ 'vitest' ]
looks past flags between the verb and the binary
expected [] to strictly equal [ 'vitest' ]
sees the binaries a package exposes only through directories.bin
expected [] to have a length of 1 but got +0
The third asserts a violation IS found, because the pre-fix failure direction is
a false PASS, not a false alarm — a test asserting the clean case would have
passed against the defect and pinned nothing.
The `directories.bin` fixture uses package and binary names distinct from the
other cases on purpose: the fixture root is shared across that block, and an
earlier draft installed a manifest under a reused name and broke a neighbouring
test that had been passing.
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Work-Item: #2848
CodySwannGT
dismissed
coderabbitai[bot]’s stale review
August 22, 2026 06:30
Stale: raised on 61a0a9e, two commits behind the current head d0c3e71. Both findings were valid and are fixed in d0c3e71, both threads are replied to and resolved, and each of the three added tests is confirmed to fail against the pre-fix helper by name and pass with it. Dismissing so auto-merge can proceed; a fresh review of the current head is welcome.
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A key added to a parent stack's
package.lisa.jsonforce section is writtenverbatim into every child stack's package.json. Inheritance is keyed on the
type hierarchy and never on the receiving stack's toolchain, so a Jest stack
and a vitest stack inherit identically — and an unreferenced script costs
nothing and proves nothing until something invokes it, which can be weeks
later, in a consumer, from a pre-push hook. The invisibility is the defect;
the one bad pin is only its first symptom.
The check resolves each stack the way
applydoes — throughPackageLisaStrategy.planPackageJson, not a second copy of the merge rules —and asks whether every tool a resolved script names comes from a package that
stack actually receives. Two properties keep it from becoming a roster:
PROJECT_TYPE_HIERARCHY, so adding one is covered withno edit here;
governed when some stack pins a package providing it. Tools no stack pins
(
node,tscbefore this commit,bash,docker) are the host's tosupply and are ignored — but the moment one stack pins a tool, every stack
whose scripts name it must pin it too. That asymmetry is exactly what makes
an inherited pin dangerous, so the exemption can never hide the hazard.
Binary names come from each installed package's own
binfield, sotscmapsto typescript and
ast-grepto @ast-grep/cli with no alias table, and@types/node— which declares no binary — is not mistaken for the provider ofnode. That reading is required rather than preferred: with no installedpackages to read, the map would have to guess from names, which cannot see
that
@playwright/testprovidesplaywright. The check refuses instead ofdegrading, because an empty result from a check that could not do its job is
the failure mode this whole class is made of.
Restoring the original defect reproduces it by name: with expo's own
test:cov:unitpin deleted, the check reportsThe check found six live instances of the same class and they are fixed here.
The typescript base forces lint, format, typecheck, prepare and six vitest
scripts while pinning none of the tools they name, so a project detected as
plain
typescriptreceived commands it could not run; two stacks pinned thesame toolchain for themselves, which is what made those tools governed while
five stacks went without. The base now supplies them as
defaults, where ahost's own pin wins, per the force/defaults/merge semantics. vitest is pinned
there too and removed on the Jest stack, following the entry that stack
already carries for the vitest mutation runner — a Jest project must not be
handed a runner it cannot use. nestjs pinned tsx for its migration scripts
nowhere; it does now.
The pair-specific coverage-unit runner guard still stands: it asserts
something stronger about one pair of keys that no dependency-derived check can
see.
Work-Item: #2848
Co-Authored-By: Claude noreply@anthropic.com
Summary by CodeRabbit
Improvements
Tests