research
Use when needing to understand requirements before implementation. Gathers context from Jira, Confluence, codebase, and docs. Produces research document with confidence scoring.
agent-mail
Multi-agent coordination via agent-mail CLI. Use when communicating with other agents, coordinating file access, sending/receiving messages, checking inbox, or reserving files. Triggers on "send message to agent", "check inbox", "reserve files", "coordinate with other agents", multi-agent workflows, file reservations, acknowledgements, "list agents", "delete agent", "clean up agents", "purge agents".
hugo-blog
A set of resources to help me write blog posts for hugozhu.site
index-knowledge
Generate hierarchical AGENTS.md knowledge base for a codebase. Creates root + complexity-scored subdirectory documentation. Use when running /init, onboarding to a new codebase, bootstrapping project documentation, or regenerating stale AGENTS.md files.
eslint-plugin
Author custom ESLint plugins and rules with test-driven development. Supports flat config (ESLint 9+) and legacy formats. Uses @typescript-eslint/rule-tester for testing. Covers problem, suggestion, and layout rules including auto-fixers and type-aware rules. Use when creating or modifying ESLint rules, plugins, custom linting logic, or authoring auto-fixers.
documenting-code-comments
Standards for writing self-documenting code and best practices for when to write (and avoid) code comments. Use when auditing, cleaning up, or improving inline code documentation.
customizing-opencode
Configure OpenCode via opencode.json, agents, commands, MCP servers, custom tools, plugins, themes, keybinds, and permissions. Use when setting up or modifying OpenCode configuration.
beautiful-mermaid
Render Mermaid diagrams as SVG and PNG using the Beautiful Mermaid library. Use when the user asks to render a Mermaid diagram.
xcodebuildmcp
Official skill for XcodeBuildMCP. Use when doing iOS/macOS/watchOS/tvOS/visionOS work (build, test, run, debug, log, UI automation).
writing-tests
Write behavior-focused tests following Testing Trophy model with real dependencies, avoiding common anti-patterns like testing mocks and polluting production code. Use when writing new tests, reviewing test quality, or improving test coverage.
visualizing-with-mermaid
Create professional Mermaid diagrams with proper styling and visual hierarchy. Use when creating flowcharts, sequence diagrams, state machines, class diagrams, or architecture visualizations.
verification-before-completion
Run verification commands before claiming work is complete or fixed. Use before asserting any task is done, bug is fixed, tests pass, or feature works.
systematic-debugging
Four-phase debugging framework with root cause tracing - understand the source before proposing fixes. Use when investigating bugs, errors, unexpected behavior, or failed tests.
swiftui-expert-skill
Write, review, or improve SwiftUI code following best practices for state management, view composition, performance, modern APIs, Swift concurrency, and iOS 26+ Liquid Glass adoption. Use when building new SwiftUI features, refactoring existing views, reviewing code quality, or adopting modern SwiftUI patterns.
opensrc
Fetch source code for npm, PyPI, or crates.io packages and GitHub/GitLab repos to provide AI agents with implementation context beyond types and docs. Use when needing to understand how a library works internally, debug dependency issues, or explore package implementations.
slidev
Markdown-based presentation slides powered by Vue and Vite. Use when creating slide decks, technical presentations, conference talks, or any presentation that benefits from code highlighting, diagrams, and web technologies.
remotion-best-practices
Best practices for Remotion - Video creation in React
refactoring-code
Improve code structure while preserving behavior with test verification. Use when cleaning up code, reducing duplication, simplifying complexity, or reorganizing modules.
ralph-prd
Generate structured prd.json files for autonomous agent loops (Ralph Wiggum pattern). Use when planning bulk/batch tasks, migrations, refactoring campaigns, or any work that can be decomposed into independent items with verification steps.
jscodeshift-codemods
Write and debug AST-based codemods using jscodeshift for automated code transformations. Use when creating migrations, API upgrades, pattern standardization, or large-scale refactoring.
natural-writing
Write like a human, not a language model. Avoid AI-tell vocabulary, formulaic structures, and hollow emphasis. Apply to ALL written output including prose, documentation, comments, and communication. Use when drafting prose, documentation, comments, or any written output that should sound human.
agent-skills
Author and improve Agent Skills following the agentskills.io specification. Use when creating new SKILL.md files, modifying existing skills, reviewing skill quality, or organizing skill directories with proper naming, descriptions, and progressive disclosure.
adversarial-code-review
Review code through hostile perspectives to find bugs, security issues, and unintended consequences the author missed. Use when reviewing PRs, auditing codebases, or before critical deployments.
hook-creator
Create native Claude Code hooks in ~/.claude/hooks/. Use when adding event-triggered automation (PreToolUse, PostToolUse, Stop, etc.).
using-tmux
Control interactive CLI tools that require a real terminal via tmux send-keys. Use for git rebase -i, git add -p, vim, nano, Python/Node REPLs, or any command that hangs waiting for terminal input.
code-smell-detection
Use when reviewing code quality, before refactoring, when complexity increases, when code feels "hard to change", during code review, or when onboarding to unfamiliar code - systematic identification of code smells with specific refactoring recipes
verification-before-completion
Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims; evidence before assertions always
receiving-code-review
Process external code review feedback systematically. Use when responding to PR comments, review feedback, or technical suggestions from reviewers.
Comprehensive PDF manipulation toolkit for extracting text/tables, creating PDFs, merging/splitting, and handling forms.
skill-creator
Create skills that extend Claude with specialized knowledge and workflows. Use when Claude needs to learn a methodology or approach.
multi-llm
Route tasks to optimal LLM provider (Gemini, Codex, Copilot, Claude)
memory-management-optimization
Debug memory leaks, profile memory usage, optimize allocations. Use when heap grows unexpectedly, OOM errors occur, or profiling shows memory bottleneck. Covers C++ (Valgrind, ASAN, RAII), Python (tracemalloc, objgraph), and general patterns.
mcp-cli
On-demand MCP server access via CLI without adding to settings.json. Use when exploring MCP server capabilities before installing, making one-off calls, testing MCP servers during development, or avoiding context pollution from rarely-used servers.
incremental-implementation
Use when building multi-day features, avoiding long-lived branches, features taking >1 day, changes touching multiple systems, or high-risk changes needing gradual rollout - break features into deployable increments that each provide value
subagent-driven-development
Use when executing implementation plans with independent tasks in the current session or facing 3+ independent issues that can be investigated without shared state or dependencies - dispatches fresh subagent for each task with code review between tasks, enabling fast iteration with quality gates
test-driven-development
Use when implementing any feature or bugfix, adding tests, fixing flaky tests, refactoring, or changing behavior. Default approach for new features, bug fixes. Exceptions only for throwaway prototypes or generated code. Covers TDD workflow (red-green-refactor), condition-based waiting for async tests, and testing anti-patterns to avoid.
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior (including race conditions, deadlocks, concurrency issues) - four-phase framework (root cause investigation, pattern analysis, hypothesis testing, implementation) with specialized techniques for deep call stack tracing and concurrency debugging
git-workflow
Use when starting feature work that needs isolation, or when completing work and deciding how to integrate - covers full worktree lifecycle from setup through merge/PR/discard
agent-creator
Create custom Task subagents in ~/.claude/agents/. Use when defining new agents for Task tool delegation.
batch-operations
Use when performing 3+ similar operations like file edits, searches, or git operations. Triggers on repetitive tasks, "do the same for", loop-like patterns. Enables parallel tool calls and batch-editor delegation.
browser-automation
Browser automation via Puppeteer MCP for JS-rendered content
command-creator
Create slash commands for user-initiated workflows. Use when building repeatable /name commands for Claude Code.
research
Use when needing to understand requirements before implementation. Gathers context from Jira, Confluence, codebase, and docs. Produces research document with confidence scoring.
implement
Executes implementation plan with quality checks and progress tracking. Follows AGENTS.md patterns strictly.
rpi
Use when implementing features from Jira tickets, PRDs, or user requirements. Orchestrates Research-Plan-Implement workflow with quality gates for hallucination, overengineering, and underengineering detection.
audit-performance
Performance-focused audit that can run in background during implementation. Checks for inefficiencies, memory leaks, widget rebuilds. Injects P0 findings to main agent.
audit
Validates research/plan/code against overengineering, underengineering, and hallucination
audit-security
Security-focused audit that can run in background during implementation. Checks for vulnerabilities, auth issues, data exposure. Injects P0 findings to main agent.
code-review
Code reviewer focusing on correctness, regressions, security, and test coverage - P0/P1/P2 severity
plan
Creates detailed implementation plan from validated research. Produces task breakdown with dependencies.
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