Prove AI work happened

Use this skill when someone asks whether a tool call ran, wants to verify an output, or needs an audit trail to show someone else.

mkdir -p ~/.claude/skills/receipt && curl -sL https://zambo.dev/skills/receipt/SKILL.md -o ~/.claude/skills/receipt/SKILL.md

Honesty contract

A verifiable receipt proves a specific tool ran with specific inputs at a specific time, and that the quoted output is byte exact. It does not prove the output is correct or prove anything outside the recorded call.

AER-1 means AI Agent Execution Receipt. It is an open draft RFC, not a finalized standard. Read AER-1 and execution receipts.

Version 1.0.0. Read the raw SKILL.md · Read receipts reference · Install the flagship skill