feat: add strongly-typed hook inputs with TypedDict #240
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km-anthropic
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Oct 10, 2025
ashwin-ant
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km-anthropic’s stale review
The base branch was changed.
Add typed hook input structures (PreToolUseHookInput, PostToolUseHookInput, etc.) to provide better IDE autocomplete and type safety for hook callbacks. Also convert HookContext from dataclass to TypedDict to match runtime behavior. Changes: - Add BaseHookInput, PreToolUseHookInput, PostToolUseHookInput, UserPromptSubmitHookInput, StopHookInput, SubagentStopHookInput, and PreCompactHookInput TypedDict classes - Update HookCallback signature to use HookInput union type - Convert HookContext from dataclass to TypedDict (fixes type mismatch) - Export all new hook input types from __init__.py - Update all examples and tests to use typed hook inputs Benefits: - Zero breaking changes (TypedDict is dict-compatible at runtime) - Full type safety and IDE autocomplete for hook callbacks - Matches TypeScript SDK structure exactly - Self-documenting hook input fields 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
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km-anthropic
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Oct 10, 2025
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Add typed hook input structures (PreToolUseHookInput, PostToolUseHookInput, etc.) to provide better IDE autocomplete and type safety for hook callbacks. Also convert HookContext from dataclass to TypedDict to match runtime behavior.
Changes:
Benefits:
🤖 Generated with Claude Code