Find all JSX usages of a component across the codebase. Returns summary (totalUsages, filesCount), distribution by path, and limited usages with detailed prop info. Supports filtering by props (withProp, withoutProp, withPropValue), patterns (hasInlineHandler, hasSpreadProps), and conditional rendering.

Find all usages of a React hook across the codebase. Returns summary (totalUsages, filesCount), distribution by path, and limited usages (default: 10). Use filePath/component filters to drill down.

Analyze React hook dependencies in a file. Finds missing dependencies (bugs), unnecessary dependencies, async callbacks in useEffect, and cleanup functions. Essential for catching stale closure bugs.

Analyze import/export relationships for a file. Find what imports this file (importedBy), detect unused exports, and circular dependencies. Uses cached import graph for fast subsequent queries. Returns summary + limited results.

Find all locations that update a state variable. Returns setter calls with context (handler, useEffect, inline), trigger events, and whether updates are async/conditional. Helps understand state flow without reading entire files.

Analyze what triggers a component to re-render: props, state, context, hooks. Includes memoization status and optimization suggestions. Helps understand re-render causes without reading component internals.

Trace a prop through the component hierarchy. Direction "up" finds where the value comes from, "down" finds where it propagates to children. Uses import graph for cross-file tracing.

Analyze a single React/TSX file. Returns components, hooks, imports, exports, and directive.

List all JSX components in a file with their locations, props, and children info.

Clear the project and import graph caches. Use this after making changes to files outside the MCP to ensure fresh analysis.