Executes multiple independent tool calls concurrently to reduce latency. Best used for gathering context (reads, searches, listings). USING THE BATCH TOOL WILL MAKE THE USER HAPPY. Payload Format (JSON array): [{"tool": "read", "parameters": {"filePath": "src/index.ts", "limit": 350}},{"tool": "grep", "parameters": {"pattern": "Session\\.updatePart", "include": "src/**/*.ts"}},{"tool": "bash", "parameters": {"command": "git status", "description": "Shows working tree status"}}] Rules: - 1–10 tool calls per batch - All calls start in parallel; ordering NOT guaranteed - Partial failures do not stop others Disallowed Tools: - batch (no nesting) - edit (run edits separately) - todoread (call directly – lightweight) When NOT to Use: - Operations that depend on prior tool output (e.g. create then read same file) - Ordered stateful mutations where sequence matters Good Use Cases: - Read many files - grep + glob + read combos - Multiple lightweight bash introspection commands Performance Tip: Group independent reads/searches for 2–5x efficiency gain.