Sample
verify pkg:npm/expect-type@1.4.0
sha256:b8ee48ff414de18aa0d2cfada628bb09799dcb05e7716af90345d4bc9b730929
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 many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 1
- Signing keys that built it
- 1
Declared environment
node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10
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@1node:22-alpine@sha256:c610fcdfb1d5… |
2026-08-26 |
Case
HOW- Goal
- verify pkg:npm/expect-type@1.4.0
- Packages
- Symbols
-
- expectTypeOf
- Environment
- node 22.23.2
- Created
- 2026-08-26T07:38:34Z
Contract
- expectTypeOf is exported as a callable function
- expectTypeOf supports scalar type matcher assertions (toBeNumber, toBeString, toBeBoolean, toBeBigInt, toBeSymbol)
- expectTypeOf supports structural and reference matchers (toBeObject, toBeArray, toBeFunction, toBeNull, toBeUndefined, toBeNullable)
- expectTypeOf supports special type matchers (toBeAny, toBeUnknown, toBeNever)
- expectTypeOf supports equality and subtype matching (toEqualTypeOf, toMatchTypeOf)
- expectTypeOf inspects function signatures (returns, parameters, parameter, toBeCallableWith)
- expectTypeOf inspects object properties (toHaveProperty, pick, omit, extract, exclude)
- expectTypeOf supports array items, promise resolves, and inverted assertions with not
- expectTypeOf supports branded type assertion helpers (branded.inspect, branded.configure, branded.toEqualTypeOf)
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.mjs
- test/contract.mjs
Origin Seeder
anonymous