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double-checking-before-acting

Checks a critical agent action against its exact target, expected result, and stop condition before and after execution. Use when an agent is about to make a critical edit, run a command or migration, use a credential or tool, change a dependency or model, make a public claim, or affect a release. Do not use for low-stakes reversible edits.

skills/double-checking-before-acting/SKILL.md

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Nov 6, 2026

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Nov 6, 2026
License
MIT

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# Double-Checking Before Acting

## Overview

A self-check turns a high-stakes action into a careful one. Before you claim success, name the target, the result you expect, when to stop, the action itself, and the check you will run afterward.

## Decision contract

- **Claim checked:** the target, expected result, and stop condition were named before the action, and the real result was compared against the expected one before claiming success.
- **Artifact observed:** the proposed action, target, and authority -> a `self-check.md` note of action, target, expected/real result, stop condition, evidence, and any mismatch.
- **Decision affected:** block -- whether to proceed with or abort the critical action: a big edit, command, public claim, trust change, or release.
- **Failure class:** wrong-target-or-unverified-action (acting on an assumed target, or claiming success without comparing the result).
- **Next action:** pause and escalate when authority, target, or evidence is unclear; a mismatch halts the action rather than triggering a retry.