The Driftproof receipt for find-skills on Claude Sonnet 5.5, dated 2026-11-01, and what it can say.
find-skills on claude-sonnet-5-5
No verdict: delegated skill not tested
These text tasks test the router's written response, not the delegated skill. Report 015 Amendment 1.
The two arms
| arm | mean | spread across cases | cases |
|---|---|---|---|
| with the skill | 0.861 | ± 0.117 | 3 |
| without the skill | 0.912 | ± 0.062 | 3 |
These arm summaries describe the recorded answers. They do not measure the delegated skill. A spread is the sample standard deviation of the per-case means: a descriptive spread with no coverage probability. No verdict is assigned to these text tasks.
This receipt also reads the skill against a same-length placebo. Report 017 shows that reading.
What was verified
receipt_hash verified when this page was built from receipts/report-017c/campaign-1/89e4135ba715fdcd8a1c966d04b371fa9ec97f97c1d3f0ad20a35173052c112c.json; run.transcripts records retained-local.
Receipt hash: 1dba083778de982f27fcbfa8e3bde3fc03c91802316ba58a2137deae5ef23c30
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-017c/campaign-1/89e4135ba715fdcd8a1c966d04b371fa9ec97f97c1d3f0ad20a35173052c112c.json
npx driftproof@0.27.0 validate 89e4135ba715fdcd8a1c966d04b371fa9ec97f97c1d3f0ad20a35173052c112c.json