Sample
chalk 6.0.0: Apply Chalk v6 extended underline styles and SGR 58 underline colors with level-dependent downsampling and separate color export catalogs.
Verified sample for npm chalk 6.0.0: Apply Chalk v6 extended underline styles and SGR 58 underline colors with level-dependent downsampling and separate…
sha256:b96150657e900e7afc7af76e5c63c74d2de2ef16bdfea180adc7d3b713d5cc28
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
- 2
- Signing keys that built it
- 2
Declared environment
node linux x64 node node npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-17 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
Case
HOW- Goal
- Apply Chalk v6 extended underline styles and SGR 58 underline colors with level-dependent downsampling and separate color export catalogs.
- Packages
- Symbols
-
- chalk.underlineRgb
- chalk.underlineHex
- chalk.underlineCurly
- chalk.underlineRed
- underlineColorNames
- Environment
- node
- Created
- 2026-08-17T18:28:06Z
Contract
- Chalk v6 underline colors emit SGR 58 escape sequences with SGR 59 resets across all color levels, downsampling to palette-indexed SGR 58;5 codes at level 1 rather than 2-digit ANSI codes.
- Level 3 truecolor underlineHex and underlineRgb emit 24-bit SGR 58;2 sequences closed by \u001b[59m.
- Level 2 256-color underlineHex downsamples to 8-bit palette SGR 58;5 sequences closed by \u001b[59m.
- Extended underline styles underlineCurly, underlineDouble, underlineDotted, and underlineDashed emit SGR 4:x subparameter sequences closed by \u001b[24m.
- Chaining extended underline styles with underline colors combines open sequences and nests closing sequences in LIFO order.
- underlineColorNames is exported separately and omitted from the colorNames export.
- Level 0 completely strips underline style and color escape sequences, returning plain text.
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs