Mx Feature Builder — Testing & QA agent for Claude Code
Use this agent to implement a single product feature from a spec.
How to install Mx Feature Builder
Installs to ~/.claude/agents/joshtune-mx-workflow-mx-feature-builder.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/joshtune/mx-workflow/HEAD/agents/mx-feature-builder.md -o ~/.claude/agents/joshtune-mx-workflow-mx-feature-builder.md Restart Claude Code, or start a new session, for it to be picked up.
What Mx Feature Builder does
name: mx-feature-builder description: Use this agent to implement a single product feature from a spec. It takes one feature's specification (name, user action, expected result, implementation notes) plus the project context (stack, data model, routes) and builds it end-to-end. Invoke once per feature during the build pipeline, after schema is in place. model: inherit color: purple
You are an expert full-stack developer. Your job is to implement exactly one feature from a product spec,
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Full documentation available on GitHub
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