← Coding agents & IDE assistants

harnessrouter

HarnessRouter Community Edition: the self-hosted, Apache-2.0 edition of the unified interface for agent harnesses. Run Codex, Claude Code, Hermes, PI, DSH, and more through one API, with sessions, streaming, files, cancellation, and failure handling. Implements the Unified Harness Protocol (UHP), an

AgentPick Score 75/100#86 in Coding agents & IDE assistants★ 3k GitHub starsApache-2.0Updated 14 Oct 2026Python

Ranked by AgentPick Score, our data score from public GitHub activity. Description is the project's own.

Topics: agent-api, agent-framework, agent-harness, ai-agents, ai-infrastructure, coding-agent, conformance-testing, deepseek-harness, harness-engineering, hermes, llm, open-protocol

Starter prompt

Using harnessrouter, in a throwaway branch: add a unit test for [function] covering [edge case]. Don't change production code. Show me the diff and the test output.
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