LucasDuys

Backprop — Testing skill for Claude Code

Testing community

Trace a bug back to a spec gap and generate regression tests.

How to install Backprop

Installs to ~/.claude/skills/lucasduys-forge-backprop/SKILL.md

Terminal

mkdir -p ~/.claude/skills/lucasduys-forge-backprop && curl -fsSL https://raw.githubusercontent.com/LucasDuys/forge/HEAD/commands/backprop.md -o ~/.claude/skills/lucasduys-forge-backprop/SKILL.md

Restart Claude Code, or start a new session, for it to be picked up.

What Backprop does

description: "Trace a bug back to a spec gap and generate regression tests" argument-hint: "\"DESCRIPTION\" [--from-test PATH]" allowed-tools: ["Read()", "Write()", "Edit()", "Glob()", "Grep()", "Bash()", "Agent(*)"]

Forge Backprop

Trace a runtime bug back to a specification gap, update the spec, generate a regression test, and log the correction for pattern detection.

Pre-flight Check

Verify .forge/ exists. If it does not, stop and tell the user:

`.forge/` not f

Alternatives in Testing

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Aod.Clarify — Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification ques 89 ★
Publish Both — Publish new versions of BOTH extensions (VS Code + spec-kit) back-to-back 85 ★