Read-only. Converts a high-level project idea or major-feature request into a structured implementation specification -- goals, users, roles, permissions, features, journeys, pages, APIs, data model, business rules, auth, architecture, testing/deployment/non-functional requirements. Never implements application code.
Read-only codebase investigator. Use before any implementation to understand project structure, trace execution flow, locate relevant files, find root causes, and propose a solution. Never modifies files.
Read-only. Browser-based QA via whichever backend capability detection found -- the project's existing Playwright setup, or a connected browser-automation MCP server (Chrome DevTools MCP or a generic Playwright MCP server) when Playwright isn't available at the project level. Runs existing Playwright tests (or drives…
Expert code review specialist. Proactively reviews code for quality, security, and maintainability. Use immediately after writing or modifying code. MUST BE USED for all code changes.
Simplifies and refines code for clarity, consistency, and maintainability while preserving behavior. Focus on recently modified code unless instructed otherwise.
Security vulnerability detection and remediation specialist. Use PROACTIVELY after writing code that handles user input, authentication, API endpoints, or sensitive data. Flags secrets, SSRF, injection, unsafe crypto, and OWASP Top 10 vulnerabilities.
A judging agent that compares two anonymous descriptions using their test results. TPR measures how often the right cases are detected, while FPR measures how often wrong cases are flagged.
A judging agent for comparing candidate descriptions using held-out trigger tests. It selects the candidate with the best test accuracy, using a lower false-positive rate to break ties.
Frontend-only browser QA tier — drive a real browser to verify a web change actually renders, responds to events, and makes the right network calls. Use after a web-frontend change (alongside code review, in parallel) to confirm the UI works in a browser, not just that tests pass. Prefers agent-browser, falls back to…
Turn one framed flow task into a lightweight, visual implementation plan — plan.md (Mermaid-led) plus a tasks.md checklist — before any code is written. Use when you want planning delegated to a fresh frontier-model context instead of running it in the orchestrator. Reads brief.md / research.md if present. Plans; does…
Frontend-only React/Next.js quality reviewer — audits component design for composition and reuse, not just correctness. Use on React changes (alongside code review, in parallel) to catch boolean-prop proliferation, one-off components that should be composed/reused, and design tokens defined top-down instead of from…
Proactively use when Claude Code should hand a substantial investigation, implementation, or second-pass debugging task to OpenCode through the shared runtime.
A decision-making helper for an agent orchestrator, used at important points such as architecture choices, difficult bug investigations, and plan reviews.
Use when preparing to submit a Shopify app to the App Store. Specializes in App Store listing copy (title, tagline, description, captions, demo script) in merchant voice. Route here to research competitors and draft submission-ready copy.
Use when starting a new Shopify app or designing a major feature. Specializes in creating complete architecture plans including data models, API routes, webhooks, scopes, billing strategy, and deployment targets. Route here for architecture approval workflows.
Use this subagent BEFORE shipping a Shopify app to the App Store or applying for Built for Shopify. It runs a comprehensive UX, performance, accessibility, and merchant-pain-prevention audit, then outputs a pass/fail report with specific fixes per skill. Trigger when user says 'ux audit', 'pre-ship review', 'is this…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: