Agent SDK Pro

Use this skill when controlling agent behavior in TypeScript Agent SDK platforms — restricting allowed tools, setting budget and turn limits, crafting system prompts that guide agents to specific behaviors, implementing the file pre-creation pattern, augmenting prompts with runtime context, building message loggers, or tracking agent run metadata (cost, duration, iterations).

Use this skill when implementing TypeScript hook callbacks for the Claude Agent SDK — creating PreToolUse hooks to allow/deny tool calls, PostToolUse hooks to inject additionalContext, building factory functions for parameterized hooks, using HookCallback and HookJSONOutput types, applying isPreToolUseInput and isPostToolUseInput type guards, or designing a hooks strategy for an Agent SDK platform. Hooks in the TypeScript SDK are async functions, NOT JSON config files.

Use this skill when developing TypeScript applications with the Claude Agent SDK (@anthropic-ai/claude-agent-sdk), implementing query() calls, configuring SDK options, handling streaming message iteration, working with SDKMessage and SDKResultMessage types, managing AbortSignal, passing custom env variables, or setting up the single-point-of-contact types file for SDK imports.