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verification-before-completion

Forces the agent to prove a change works before claiming it's done. Kills the #1 agent failure mode. From the Superpowers library.

Testing & DebuggingBEGINNERby obra (Jesse Vincent)
Claude Codeverificationqualityworkflow

Key Information

Install / Load
/plugin install superpowers@claude-plugins-official
View Source & Install Guide

How This Skill Works

From the Superpowers library. Adds a hard gate before the agent declares a task complete: it must run the tests/build/relevant checks and show the evidence, not assert success from memory.

Directly targets the most common agent failure — confidently reporting broken work as done. Installs as part of the Superpowers plugin.