CodeSampleX

Sample

negotiate HTTP Accept header content type using goautoneg

sha256:045ec8393f3d193b61123170c99aff268d48c04196d0e39a84d7007e4114880e

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 linux 24 · ubuntu · glibc 2.39 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1golang:1.26-alpine@sha256:28d89ee9cc0f…
2026-08-28

Case

HOW
Goal
negotiate HTTP Accept header content type using goautoneg
Packages
Symbols
  • Negotiate
  • ParseAccept
Created
2026-08-28T00:09:07Z

Contract

  1. Negotiate selects the highest quality media type among available alternatives
  2. Negotiate resolves wildcards and subtype wildcards according to quality values
  3. Negotiate returns an empty string when no alternatives match the accept header
  4. ParseAccept parses media types, quality values, and parameters into ordered clauses
  5. ParseAccept parses wildcard media types with quality parameters

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

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