The Driftproof receipt for git-workflow-and-versioning on Claude Sonnet 5, from Report 006, dated 2026-08-28, and what it can say.
git-workflow-and-versioning on claude-sonnet-5
Not measured
This receipt carries no verdict: it does not record that a model answered the run.
Skill token cost: about +3447 input tokens per call, estimated from the SKILL.md length (not measured).
The two arms
| arm | mean | spread across cases | cases |
|---|---|---|---|
| with the skill | 0.787 | ± 0.221 | 7 |
| without the skill | 0.788 | ± 0.220 | 7 |
No lift is stated for a state that did not measure one. A spread is the sample standard deviation of the per-case means: a descriptive spread with no coverage probability. The verdict above reads each case's two bands, not these aggregates.
What was verified
receipt_hash verified when this page was built from receipts/report-006/git-workflow-and-versioning-claude-sonnet-5-2026-08-28.json; run.transcripts records hashes-only.
Receipt hash: d35e2fd6c01c55a871c805f1ac31b43252e6901d19134bf24c825259816c0e3b
Check this file yourself
validate shows that this file is unchanged since it was sealed. It does not show who made it or who sealed it.
curl -fsSLO https://raw.githubusercontent.com/driftproofhq/driftproof/main/receipts/report-006/git-workflow-and-versioning-claude-sonnet-5-2026-08-28.json
npx driftproof@0.28.0 validate git-workflow-and-versioning-claude-sonnet-5-2026-08-28.json