yacb2

Impl Sonnet — Testing & QA agent for Claude Code

Testing & QA community

Use proactively when what to build is already decided and it has a test or gate: a plan phase, a backlog item, a change touching more than two files, a refactor.

How to install Impl Sonnet

Installs to ~/.claude/agents/yacb2-aidex-impl-sonnet.md

Terminal

mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/yacb2/aidex/HEAD/agents/impl-sonnet.md -o ~/.claude/agents/yacb2-aidex-impl-sonnet.md

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

What Impl Sonnet does

name: impl-sonnet description: Use proactively when what to build is already decided and it has a test or gate: a plan phase, a backlog item, a change touching more than two files, a refactor. Handoff: five sections — worktree and command rules, files to read first, what to build, tests that must pass, what to return. Never commits; the main session reviews the diff and commits. Not for bugs (`aidex:bugfix-opus`) or undecided designs. model: sonnet effort: medium tools: Bash, Read, Edit, Wri

Alternatives in Testing & QA

Omd Final QA — Read-only final-gate critic 465 ★
Playwright Test Generator — Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants 246 ★
Fixer Sonnet — Fix-only agent, tier 1. Fixes known-cause findings confined to one module with a regression test, then commits 77 ★