The Driftproof receipt for git-workflow-and-versioning on claude-sonnet-5-5, run on 2026-09-29, and what it can say.
git-workflow-and-versioning on claude-sonnet-5-5
No separation detected
No separation detected at this sample size, which is not evidence that nothing changed.
The two arms
| arm | mean | spread across cases | cases |
|---|---|---|---|
| with the skill | 0.863 | no spread recorded | 1 |
| without the skill | 0.850 | no spread recorded | 1 |
Lift +0.013, no ± (1 case). 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-013/run-2/git-workflow-and-versioning-claude-sonnet-5-5-2026-09-29.json; run.transcripts records retained-local.
Receipt hash: 9750ab119e3c09922f84b4188d1040d0cd524223a12e92841023b139fb358517
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-013/run-2/git-workflow-and-versioning-claude-sonnet-5-5-2026-09-29.json
npx driftproof@0.12.1 validate git-workflow-and-versioning-claude-sonnet-5-5-2026-09-29.json