You are an observability engineer specializing in production-grade monitoring, logging, tracing, and reliability systems for enterprise-scale applications. Use it to give an agent explicit responsibilities, steps and constraints.

You are an API mocking expert specializing in creating realistic mock services for development, testing, and demonstration purposes. Design comprehensive mocking solutions that simulate real API behavior, enable parallel development, and facilitate thorough testing. Use it to give an agent explicit responsibilities, steps and constraints.

fastapi-templates — detailed worked examples captures reusable agent playbook guidance for api, backend & databases. Use it to give an agent explicit responsibilities, steps and constraints.

You are a backend system architect specializing in scalable, resilient, and maintainable backend systems and APIs. Use it to give an agent explicit responsibilities, steps and constraints.

Detailed preset team configurations with task templates for common workflows. Use it to give an agent explicit responsibilities, steps and constraints.

Best practices for composing multi-agent teams, selecting team sizes, choosing agent types, and configuring display modes for Claude Code's Agent Teams feature. Use it to give an agent explicit responsibilities, steps and constraints.

Protocols for effective communication between agent teammates, including message type selection, plan approval workflows, shutdown procedures, and common anti-patterns to avoid. Use it to give an agent explicit responsibilities, steps and constraints.

Strategies for decomposing features into parallel work streams, establishing file ownership boundaries, avoiding conflicts, and integrating results from multiple implementer agents. Use it to give an agent explicit responsibilities, steps and constraints.

Systematic improvement of existing agents through performance analysis, prompt engineering, and continuous iteration. Use it to give an agent explicit responsibilities, steps and constraints.

Practical guide to testing web applications with screen readers for comprehensive accessibility validation. Use it to give an agent explicit responsibilities, steps and constraints.

You are an accessibility expert specializing in WCAG compliance, inclusive design, and assistive technology compatibility. Conduct comprehensive audits, identify barriers, provide remediation guidance, and ensure digital products are accessible to all users. Use it to give an agent explicit responsibilities, steps and constraints.

You are an experienced UI visual validation expert specializing in comprehensive visual testing and design verification through rigorous analysis methodologies. Use it to give an agent explicit responsibilities, steps and constraints.

Complete guide to using agents, slash commands, and multi-agent workflows. Use it as a repeatable review, validation or hardening pass.

Browse all 94 marketplace plugins organized by category: 90 local plugins plus 4 externally hosted git-subdir entries (pensyve, qa-orchestra, storymap-skill, ciagent). Use it as a repeatable review, validation or hardening pass.

PluginEval is a three-layer quality evaluation framework for Claude Code plugins and skills. It combines deterministic static analysis, LLM-based semantic judging, and Monte Carlo simulation to produce calibrated quality scores with confidence intervals. Use it to ground design choices in named patterns, trade-offs and examples.

claude-agents is a multi-harness plugin marketplace. Source-of-truth lives under plugins/ as Claude Code markdown. Per-harness artifacts are generated by adapters under tools/adapters/. Use it to ground design choices in named patterns, trade-offs and examples.

Plugin content in this repo ships to five harnesses: OpenAI Codex CLI, Cursor, OpenCode, Gemini CLI, and GitHub Copilot. Claude Code is the source-of-truth. The adapter framework handles per-harness mechanics (frontmatter rewrites, format transforms, output paths) so you auth. Use it to ground design choices in named patterns, trade-offs and examples.

This marketplace follows industry best practices with a focus on granularity, composability, and minimal token usage. Use it as a repeatable review, validation or hardening pass.

Complete reference for all 203 local specialized AI agents organized by category with model assignments. Use it as a repeatable review, validation or hardening pass.

Agent Skills are modular packages that extend Claude's capabilities with specialized domain knowledge, following Anthropic's Agent Skills Specification. This plugin ecosystem includes 175 local specialized skills across 48 plugins, enabling progressive disclosure and efficien. Use it as a repeatable review, validation or hardening pass.