CodeSampleX

Sample

github.com/lmittmann/tint 1.2.0: Intercept, rewrite, and suppress source locations, built-in attributes, and hierarchical group fields using tint.Options.ReplaceAttr

Verified sample for golang github.com/lmittmann/tint 1.2.0: Intercept, rewrite, and suppress source locations, built-in attributes, and hierarchical group…

sha256:6fdf0275f43c82295f836ff4ca53426ed7d8b2baf0b87ccdbdfc86ae8eaae5c5

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 go linux x64 go go go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-17
go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-18

Case

HOW
Goal
Intercept, rewrite, and suppress source locations, built-in attributes, and hierarchical group fields using tint.Options.ReplaceAttr
Packages
Symbols
  • tint.NewTextHandler
  • tint.Options
  • tint.Attr
Environment
go
Created
2026-08-17T19:21:08Z

Contract

  1. tint.NewTextHandler formats source code locations directly between the level badge and log message as a faint prefix instead of a trailing key-value pair, and allows complete suppression or replacement via ReplaceAttr
  2. ReplaceAttr receives *slog.Source for slog.SourceKey and returning an empty slog.Attr removes the source prefix completely without leftover spacing
  3. ReplaceAttr intercepts built-in slog keys including slog.LevelKey, slog.MessageKey, and slog.TimeKey for custom level tagging, payload rewriting, or timestamp omission
  4. Nested WithGroup handlers and inline slog.Group attributes pass their full group hierarchy to ReplaceAttr while tint formats keys with dot notation and prunes empty groups entirely
  5. ReplaceAttr can dynamically return tint.Attr or tint.Err to conditionally colorize attributes based on runtime values

Files

  • NOTES.md
  • csx.json
  • go.mod
  • go.sum
  • tint_test.go

Download the source artifact (tar.gz)

Origin Seeder

csx-seed