skills/0xdarkmatter/tool-discovery/SKILL.md
Recommend the right agents and skills for any task. Covers both heavyweight agents (Task tool) and lightweight skills (Skill tool). Triggers on: which agent, which skill, what tool should I use, help me choose, recommend agent, find the right tool.
npx skillsauth add aiskillstore/marketplace tool-discoveryInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Recommend the right agents and skills for any task.
Is this a reference/lookup task?
├── YES → Use a SKILL (lightweight, auto-injects)
└── NO → Does it require reasoning/decisions?
├── YES → Use an AGENT (heavyweight, spawns subagent)
└── MAYBE → Check catalogs below
Rule: Skills = patterns/reference. Agents = decisions/expertise.
| Skill | Triggers | |-------|----------| | file-search | fd, rg, fzf, find files | | find-replace | sd, batch replace | | code-stats | tokei, difft, line counts | | data-processing | jq, yq, json, yaml | | structural-search | ast-grep, sg, ast pattern | | git-workflow | lazygit, gh, delta, rebase | | python-env | uv, venv, pyproject | | rest-patterns | http methods, status codes | | sql-patterns | cte, window functions | | sqlite-ops | sqlite, aiosqlite | | tailwind-patterns | tailwind, tw classes | | mcp-patterns | mcp server, protocol |
| Agent | Triggers | |-------|----------| | python-expert | Python, async, pytest | | typescript-expert | TypeScript, types, generics | | react-expert | React, hooks, state | | postgres-expert | PostgreSQL, query optimization | | cloudflare-expert | Workers, KV, D1, R2 | | Explore | "where is", "find" | | Plan | design, architect |
Skills:
Skill tool → skill: "file-search"
Agents:
Task tool → subagent_type: "python-expert"
→ prompt: "Your task"
| Task | Skill First | Agent If Needed | |------|-------------|-----------------| | "How to write a CTE?" | sql-patterns | sql-expert | | "Optimize this query" | — | postgres-expert | | "Find files named X" | file-search | Explore | | "Set up Python project" | python-env | python-expert | | "What HTTP status for X?" | rest-patterns | — |
For complete catalogs, load:
./references/agents-catalog.md - All agents with capabilities./references/skills-catalog.md - All skills with detailsdevelopment
Apple Human Interface Guidelines for content display components. Use this skill when the user asks about charts component, collection view, image view, web view, color well, image well, activity view, lockup, data visualization, content display, displaying images, rendering web content, color pickers, or presenting collections of items in Apple apps. Also use when the user says how should I display charts, what's the best way to show images, should I use a web view, how do I build a grid of items, what component shows media, or how do I present a share sheet. Cross-references: hig-foundations for color/typography/accessibility, hig-patterns for data visualization patterns, hig-components-layout for structural containers, hig-platforms for platform-specific component behavior.
tools
Automate HelpDesk tasks via Rube MCP (Composio): list tickets, manage views, use canned responses, and configure custom fields. Always search tools first for current schemas.
testing
Expert Haskell engineer specializing in advanced type systems, pure functional design, and high-reliability software. Use PROACTIVELY for type-level programming, concurrency, and architecture guidance.
tools
GraphQL gives clients exactly the data they need - no more, no less. One endpoint, typed schema, introspection. But the flexibility that makes it powerful also makes it dangerous. Without proper controls, clients can craft queries that bring down your server. This skill covers schema design, resolvers, DataLoader for N+1 prevention, federation for microservices, and client integration with Apollo/urql. Key insight: GraphQL is a contract. The schema is the API documentation. Design it carefully.