act101 Documentation

act is the first dev tool that lets an AI agent actually refactor and port code. 183 AST refactor operations, 30 codebase analyzers, 15 query operations, 8 porting operations, and 10 pre-built agent skills — across 163 grammars. Exposed to Claude Code, Cursor, Codex, and OpenCode through a built-in MCP server.

Query Tools

Core AST query tools: skeleton, symbols, graph, references, definition, and more.

Languages

Per-language operation reference for every supported language.

Analysis Tools

Deep analysis operations: patterns, coupling, cycles, dead code, and 25+ more.

Agent Skills

Pre-built multi-step agent workflow patterns for common engineering tasks.

History

Operation history: list, undo, and redo refactoring checkpoints.

Porting

Cross-language porting tools: contract, inventory, ordering, and manifest operations.