Isolated Worker — Testing & QA agent for Claude Code
Implements a small, well-specified change once the scope and design are already decided — a bounded fix, a contained feature, a targeted refactor, an added test.
How to install Isolated Worker
Installs to ~/.claude/agents/arcanedge-ai-coding-agent-playbook-claude-code-isolated-worker.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/ArcanEdge-AI/coding-agent-playbook-claude-code/HEAD/agents/isolated-worker.md -o ~/.claude/agents/arcanedge-ai-coding-agent-playbook-claude-code-isolated-worker.md Restart Claude Code, or start a new session, for it to be picked up.
What Isolated Worker does
name: isolated-worker description: Implements a small, well-specified change once the scope and design are already decided — a bounded fix, a contained feature, a targeted refactor, an added test. Use when you can state the intended end state in a sentence or two and name the files involved. Not for work where the design is still open, the requirements are ambiguous, or the blast radius is unknown. model: sonnet effort: high permissionMode: default tools: Read, Grep, Glob, Edit, Write, Bash
Alternatives in Testing & QA
- Gitnexus Test CI Verifier — GitNexus test and CI reviewer 45.8k ★
- Test Architect Agent — You are a testing expert who designs comprehensive test strategies and writes effective tests 1.3k ★
- Review Test Structure — Reviews test code for isolation, independence, readability, documentation quality, and proper setup/teardown 432 ★
Full documentation available on GitHub
View Source RepositoryRelated Agents
Worker Sonnet
Tier-2 worker on Sonnet. Use for well-specified, bounded work - implementing a decided design, writing tests,
TDD Coder
Implements one concrete, already-scoped piece of MeowPay work test-first - writes the failing test from a tdd-
Fast Worker
Mechanical, low-risk bulk work, mechanical edits, inventory sweeps, repetitive migrations, generated-file main
QA Worker
Inspects a small, bounded packet of QA nodes (a route-prefix or one flow, for one actor) and writes verdicts +
Implementer Simple
Implements one SMALL, bounded task test-first - a mechanical change, a rename, a config tweak, a fix touching
QA Fixer
Bounded test-fix loop agent for beast. Diagnoses test failures and applies targeted fixes, max 5 cycles.
Related Skills
Agent Skills Discovery RFC
A mechanism for discovering Agent Skills using the .well-known URI path prefix as specified in RFC 8615 for di
Execute Codex
Codex implements (large), Claude implements (small), Sonnet reviews
Fleet Lane Dispatch
Use when dispatching a batch of autonomous CCC worker lanes with a mission brief and a report_to return addres