The Driftproof receipt for grill-with-docs on Claude Haiku 5.5, dated 2026-11-08, and what it can say.
grill-with-docs on claude-haiku-5-5
Not enough draws
Not enough draws to conclude at this effect floor.
Draws needed: no draw count at these spreads (case decision: the two arms' spreads sum to 0.165, at or above the 0.05 floor).
Skill token cost: +99 input and +203 output tokens per call against no skill (measured, grading excluded).
The two arms
| arm | mean | spread across cases | cases |
|---|---|---|---|
| with the skill | 0.923 | ± 0.025 | 3 |
| without the skill | 0.916 | ± 0.043 | 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/canary/2026-11-08/grill-with-docs-claude-haiku-5-5-2026-11-08-001cec366d9b.json; run.transcripts records hashes-only.
Receipt hash: 001cec366d9b4f274d58f7eca3ebc5208924c00c99bd4c367ae677e4ef3b8fbe
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/canary/2026-11-08/grill-with-docs-claude-haiku-5-5-2026-11-08-001cec366d9b.json
npx driftproof@0.28.0 validate grill-with-docs-claude-haiku-5-5-2026-11-08-001cec366d9b.json