Recordsnpm@babel/core7.29.6buildExternalHelpers
OS × runtime at a glance
1 12026-09-16
Reading a cell: The number is how many recorded observations the rate divides — one build files an observation per stage it reached, so it counts neither builds nor machines nor people. The document beside it is a different fact from a different source: whether a sample exists at that coordinate, and how our own run of it went there.
- no sample at this coordinate yet
- there is a sample here, and nothing of ours has run it at this coordinate yet
- there is a sample here, and our run of it at this coordinate came back clean
- there is a sample here, and our run of it at this coordinate failed
- there is a sample here, and this coordinate records both a passing and a failing run of it
- nothing recorded — unknown, never "works" and never "broken"
- there is a level below this cell — click to open it
A document means there is a sample at that coordinate. Whether one EXISTS is a fact about this release and this API and does not change with OS, runtime or package manager; its COLOUR is how that sample ran in the environment you are looking at.
Published samples
- @babel/core 7.29.6: buildExternalHelpers This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOW@babel/core.buildExternalHelpersnode 22.23.2 MIT-0 · 2026-09-03
- @babel/core 7.29.6: buildExternalHelpers This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. HOWbuildExternalHelpers MIT-0 · 2026-09-03
Compatibility matrix
Project-level observations and symbol/contract verifications are counted separately and never combined.
These counts do not distinguish how the symbol was called: overloads, argument shapes and options are pooled together. What a particular call shape does is proven by a sample's contract, not by these numbers.
| Environment | Confidence | Observations | Verified | Pass rate | Peers | Last seen |
|---|---|---|---|---|---|---|
| node 22 · JS · npm · linux glibc · docker
Observations: PROJECT_TEST 1✓
|
LOW | 1 | 0 | 100% | 1 | 2026-09-16 |
| node 22 · JS · npm · linux glibc · docker
Observations: PROJECT_TEST 1✓ — Verified: CONTRACT 1✓
|
LOW | 1 | 1 | 100% | 1 · 1✓ | 2026-09-16 |
| node 22.23 · JS · npm · linux glibc
Observations: PROJECT_PROCESS 4✓ — Verified: UNKNOWN 0✓ 6✕
|
ELEVATED FAILURE | 4 | 6 | 40% | 1 | 2026-09-03 |
snapshot · 2026-09-16
Failure clusters
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observed UNKNOWN exit 1 ERR_MODULE_NOT_FOUND Evidence gap ×7 7.29.6 → 7.29.7 → 8.0.0-rc.6 executionContext=node · os=linux · runtime=node@22.23 sha256:88af852f99a8…node:internal/modules/package_json_reader:<n> · throw new ERR_MODULE_NOT_FOUND(packageName, fileURLToPath(base), null); · ^ …node · unclassified-diagnostic · outer node · gap stage-unknownEvidence quality: complete · Environment variants: 2 · First recorded: 2026-08-30 · Last seen: 2026-09-05Diagnostic re-verification candidate
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observed UNKNOWN exit 1 Evidence gap ×2 7.26.0 → 7.29.6 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:56bc1af5426b…evalmachine.<anonymous>:<n> · }), e && babelHelpers.setPrototypeOf(t, e); · ^ · TypeError: babelHelpers.setPrototypeOf is not a functionnode · unclassified-diagnostic · outer node · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-09-03 · Last seen: 2026-09-03Diagnostic re-verification candidate
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observed UNKNOWN exit 1 ERR_ASSERTION Evidence gap ×1 7.29.6 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:3fb0ff068918…node:internal/modules/run_main:<n> · triggerUncaughtException( · ^ · AssertionError [ERR_ASSERTION]: Arrow function must compile to function expression· unclassified-diagnostic · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-09-03 · Last seen: 2026-09-03Diagnostic re-verification candidate
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observed UNKNOWN exit 1 Evidence gap ×1 7.29.6 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:9129525d2604…<url>]:<n> · tar -zxf $(npm pack @babel/preset-env@8.0.2) · ^ · SyntaxError: Unexpected identifier <str>node · unclassified-diagnostic · outer node · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-09-03 · Last seen: 2026-09-03Diagnostic re-verification candidate
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observed UNKNOWN exit 1 Evidence gap ×1 7.29.6 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:cae11d1c2ac8…<url>]:<n> · const modern = presetEnv(api, { targets: { chrome: <str> }, modules: false }); · ^ · TypeError: presetEnv is not a functionnode · unclassified-diagnostic · outer node · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-09-03 · Last seen: 2026-09-03Diagnostic re-verification candidate
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observed UNKNOWN exit 1 Evidence gap ×1 7.29.6 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:0cd3a66e3ae2…Contract failed: Error: Unexpected require: <path> · at mockRequire (<url>) · at eval (eval at evaluateCjs (<url>), <anonymous>:<n>:<n>) …node · unclassified-diagnostic · outer node · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-09-03 · Last seen: 2026-09-03Diagnostic re-verification candidate
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observed UNKNOWN exit 1 Evidence gap ×1 7.29.6 executionContext=node · moduleSystem=cjs · os=linux · runtime=node@22.23 sha256:b4964cdcf3b0…Contract failed: Error: Unexpected require: external-dep-b · at mockRequire (<url>) · at eval (eval at evaluateCjs (<url>), <anonymous>:<n>:<n>) …node · unclassified-diagnostic · outer node · gap stage-unknownEvidence quality: complete · Environment variants: 1 · First recorded: 2026-09-03 · Last seen: 2026-09-03Diagnostic re-verification candidate