anthropic-docs

Router skill for the Anthropic Messages API and adjacent surfaces (admin endpoints, compliance, beta features, models catalog) hosted under platform.claude.com/docs/en/api/. Use when the user asks about: POST /v1/messages, tool_use / tool_result blocks, count_tokens, message batches, streaming responses, prompt caching, prompt cache TTL / breakpoints, system prompts, anthropic-beta headers, the admin API (organizations / workspaces / API keys / invites), compliance endpoints (data residency, audit logs, retention), beta-only features behind a beta header, or the models catalog (model IDs, deprecation dates, context window sizes). Skip: questions about Claude Code (use claude-code skill), the Claude Agent SDK (use claude-agent-sdk), platform features beyond the raw API such as Agent Skills format or tool-use guides (use anthropic-platform-features), MCP connector docs (claude-connectors), or per-language auto-generated SDK reference (use anthropic-sdk's TypeScript / Python types directly via your IDE).

Router skill for Anthropic platform-side features that sit above the raw Messages API: Agent Skills format (the spec for `.skill` packages used by platform-managed agents), MCP connectors hosted by Anthropic, tool use (computer use, code execution, bash tool, define-your-own tools), build-with-claude features (extended thinking, message batches, citations, Amazon Bedrock, Google Vertex, embeddings, fast mode, context editing), manage-claude operations (workload identity federation, billing, identity), and the Managed Agents product. Use when the user asks about: writing an Agent Skill `.skill` package, Anthropic's hosted MCP connector, MCP Tunnels (connecting private-network MCP servers without opening inbound ports), the computer-use tool, the code_execution tool, bash tool, extended thinking, message batches, prompt caching strategy at the platform level, citations, deploying via Bedrock or Vertex, embeddings models, fast-mode behavior, context editing strategies, WIF setup, billing / cost reports, identity & SSO setup, customer-managed encryption keys (CMEK via AWS KMS / Google Cloud KMS / Azure Key Vault), the Managed Agents product, or self-hosted sandboxes (running agent sessions in your own infrastructure). Skip: raw POST /v1/messages requests (use anthropic-api), Claude Code CLI (use claude-code), Claude Agent SDK (use claude-agent-sdk), user-facing Claude Connectors directory (use claude-connectors).

Router skill for Anthropic's news + research feeds — auto-refreshed daily from anthropic.com/news and anthropic.com/research. Use when the user asks about TIME-SENSITIVE Anthropic content: model launches ("did Claude X just release?"), product announcements, partnership news, region launches, new research papers, recent policy positions, or "what's new from Anthropic?" / "what did Anthropic just announce?" / "any recent research on X?" Skip: deep technical reference (use the other 7 skills — claude-code, anthropic-api, etc.); historical news older than ~30 items (link out to anthropic.com instead); detailed paper content (the digest carries title + summary + URL — Claude WebFetches the paper for depth on demand).

Router skill for the Claude Agent SDK — Anthropic's libraries for building autonomous AI agents that wrap the Claude Code CLI runtime. Ships in TypeScript (`@anthropic-ai/claude-agent-sdk` on npm) and Python (`claude-agent-sdk` on PyPI). Covers `query()` / `ClaudeSDKClient`, hooks (PreToolUse / PostToolUse / Stop / etc.), subagents, MCP servers (stdio / HTTP / SSE / SDK in-process), permission modes, the sandbox (Docker / Kubernetes), structured outputs (JSON Schema validation), session capture / resume / fork, and session storage adapters (`SessionStore`, `InMemorySessionStore`, S3/Redis/Postgres). Use when the user asks about: importing `@anthropic-ai/claude-agent-sdk` in TypeScript or `from claude_agent_sdk import ...` in Python, writing an agent that uses `query()` or `ClaudeSDKClient`, registering hooks via the SDK (`hooks: { PreToolUse: [...] }` / `hooks={"PreToolUse": [...]}`), defining MCP servers in SDK options, configuring `permissionMode` / `permission_mode`, building subagents with `AgentDefinition`, enabling structured outputs, running agents in a Docker/K8s sandbox, capturing and resuming sessions, mirroring session transcripts to external storage (S3, Redis, Postgres) via `SessionStore`, or troubleshooting SDK-specific errors (the SDK wraps Claude Code, so its errors differ from raw Messages API errors). Skip: questions about the Claude Code CLI itself such as `.claude/ settings.json` or `.mcp.json` files (use claude-code), the Anthropic Messages API directly without the SDK (use anthropic-api), the MCP protocol spec itself (use mcp-spec), or Anthropic's hosted Managed Agents product (use anthropic-platform-features).

Router skill for Claude Code (the CLI tool itself). Contains intent hints and a dispatch table that maps a user's question to the surface-specific deep-reference file Claude should Read next. Use when the user asks about Claude Code internals: editing .claude/settings.json or settings.local.json, authoring or debugging hooks (PreToolUse, PostToolUse, Stop, SubagentStop, Notification, UserPromptSubmit, PreCompact, SessionStart, SessionEnd, etc.), writing slash commands or agents, configuring MCP servers in .mcp.json, building plugins or marketplaces, setting ANTHROPIC_* / CLAUDE_* env vars, troubleshooting permission modes, understanding the ~/.claude/ directory layout, or asking "what does <feature> in Claude Code do". Skip: questions about the Anthropic Messages API (use anthropic-api), the Claude Agent SDK (use claude-agent-sdk), the MCP protocol spec (use mcp-spec), or general shell / git / programming topics not specific to Claude Code internals.