`Statewright`: state-machine guardrails for more reliable coding agents

Instead of buying reliability with bigger models and longer prompts, it narrows each step with deterministic tool and transition rules. Strong pattern for agent builders; interesting now, but still early until broader IDE support lands.

• —Each phase gets a hard tool budget and valid transitions only, so planning, editing, and testing cannot blur together.
• —The reported sweet spot is 13B-20B models: big enough to navigate the workflow, small enough to benefit from tighter context.
• —Results reportedly improved across qwen-coder, gpt-oss, and gemma4, with gains also showing up on frontier models like Haiku, Sonnet, and Opus.
• —Core architecture is a Rust state-machine engine plus MCP plugins for Claude Code, with Codex and Cursor support planned.