The Engine of Certainty.
Standalone. Self-iterating. Rust-native.
The agent that doesn't stop until the job is done perfectly.
cargo install openkoiScroll to explore
Perfection through iteration.
Unlike "fire and forget" agents, OpenKoi follows a rigorous Plan-Execute-Evaluate-Refine cycle. It critiques its own work using domain-specific rubrics until quality thresholds are met.
Built for Speed.
Rust-native core means <10ms startup and ~5MB memory footprint. Powerful enough for researchers, light enough for your daily CLI.
Standardized Skills.
Fully compatible with the OpenClaw Skill system. Use your existing .SKILL.md files and connect to the world via MCP.
One engine. Multiple worlds.
CLI First
Designed for the terminal. Piped input support, interactive REPL, and zero-config setup.
Model Agnostic
Switch between Claude, GPT, Gemini, Bedrock, or local Llama models with a single flag. No vendor lock-in.
Three-Tier Plugins
Extend with MCP tool servers, sandboxed WASM modules, or Rhai scripts. Full hook system included.
The Open Ecosystem