act101 transforms code refactoring by making AI edits deterministic and verifiable. Instead of guessing whether an LLM's code changes are safe, act101 provides an agent that refactors or ports your code, then returns a definitive MERGE/REVIEW/BLOCK verdict with a signed receipt and one-command rollback.
Supports 163 grammars, 183 AST refactor operations, and 41 codebase analyzers. Exposed via MCP protocol for Claude Code, Cursor, Codex, and OpenCode, plus a native CLI binary. Capabilities include agent-assisted refactoring in Python and porting legacy code from C to Rust or Ruby to Elixir.
