The Driftproof receipt for grill-me on Claude Sonnet 5.5, dated 2026-10-18, and what it can say.
grill-me on claude-sonnet-5-5
Not enough draws
Not enough draws to conclude at this effect floor.
Draws needed: no draw count at these spreads (case plan: the two arms' spreads sum to 0.222, at or above the 0.05 floor).
The two arms
| arm | mean | spread across cases | cases |
|---|---|---|---|
| with the skill | 0.719 | ± 0.258 | 3 |
| without the skill | 0.774 | ± 0.144 | 3 |
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/skill-measurements/published/60b4158dd27d66172098dba403b3cfa7630b77cf79ee86249e28ae9067464f8b.json; run.transcripts records retained-local.
Receipt hash: 0088086baf03cabea487b4555ba4c30ffee50e9e9eb831d856b7b3bb84f43aa5
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/skill-measurements/published/60b4158dd27d66172098dba403b3cfa7630b77cf79ee86249e28ae9067464f8b.json
npx driftproof@0.22.4 validate 60b4158dd27d66172098dba403b3cfa7630b77cf79ee86249e28ae9067464f8b.json