Catalog
Search by harness name, ID, provider, or confirmed surface. This page is a reference directory, not a recommendation engine.
4 of 4 harnesses
Claude Code
Anthropic documents Claude Code as an agentic coding tool that works in a real working tree with the shell, editing files, running tests, and coordinating sub-agents to complete engineering tasks end to end.
Codex
OpenAI documents Codex as a coding agent that can read, edit, and run code across web, IDE, and CLI surfaces.
Hermes
Nous Research documents Hermes as a self-improving autonomous agent with CLI usage, toolsets, a skills system, persistent memory, and MCP integration. On HarnessRouter it runs any frontier model.
Pi
Pi is an upcoming HarnessRouter coding harness. Its route is reserved; capability notes will be published here when it is available.
Source discipline
Do not infer capability from a harness name. If an official source or HarnessRouter-owned capability map does not confirm the claim, leave it out of product copy and docs.
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