joey114132

Duel Fix Builder — Testing & QA agent for Claude Code

Testing & QA community

Use when one established cause of a defect has a failing repro test and needs the smallest fix that makes that test pass, built inside an isolated git worktree so nothing in the real checkout changes.

How to install Duel Fix Builder

Installs to ~/.claude/agents/joey114132-claude-agent-teams-duel-fix-builder.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/joey114132/claude-agent-teams/HEAD/agents/duel-fix-builder.md -o ~/.claude/agents/joey114132-claude-agent-teams-duel-fix-builder.md

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

What Duel Fix Builder does

name: duel-fix-builder description: Use when one established cause of a defect has a failing repro test and needs the smallest fix that makes that test pass, built inside an isolated git worktree so nothing in the real checkout changes. Give it the surviving hypothesis, the repro test diff and test command, the list of refuted hypotheses, the decision-record paths and, on a later round, the previous diff and the critic's objections. It returns the diff, the failing output and the passing out

Alternatives in Testing & QA

Lens Reviewer — Use this agent for severity-rated code review with 2-stage protocol (spec compliance first, then code quality) 523 ★
Eval Improver — Improver role of the D365FO agent eval loop 136 ★
Backend Test Convention Checker — Use this agent when test code needs to be validated — specifically to check recently changed test files (via g 109 ★