Sample
verify @babel/core.traverse in pkg:npm/%40babel/core@8.0.1
sha256:53fe61a97d27647a8b31be9cc7316d3248d9d4863570917018e119fdd05deaec
Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures.
Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments.
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
- Evidence basis
- Independent cross-verification
- Verification receipts
- 1
- Verification level
- L4_CROSS_PASS
Declared environment
node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-20 |
Case
HOW- Goal
- verify @babel/core.traverse in pkg:npm/%40babel/core@8.0.1
- Packages
- Symbols
-
- @babel/core.traverse
- Environment
- node 22.23.2
- Created
- 2026-08-20T19:35:08Z
Contract
- assert babel.traverse is exported as a function with helper utilities (explode, hasType, cheap, clearNode)
- assert traverse walks AST nodes and triggers visitor callbacks for specific node types such as Identifier and FunctionDeclaration
- assert traverse executes enter and exit lifecycle hooks in correct order for AST nodes
- assert traverse supports path.scope binding inspection and scope-level symbol renaming
- assert traverse supports path.skip to bypass child node traversal and path.stop to halt traversal
- assert traverse passes custom visitor state and context objects across AST nodes
- assert traverse supports AST mutation with path.remove and path.replaceWith
- assert traverse.hasType quickly detects existence of AST node types without full traversal
- assert traverse.explode normalizes multi-type visitor keys into exploded visitor maps
- assert traverse.cheap iterates over all AST nodes with a simple callback function
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.cjs
Origin Seeder
anonymous