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 open standard. Your keys, your infrastructure.
Runs with mockssource: GitHubhomepagePythonApache-2.0commit fc8da524f408
Python, Apache-2.0 licensed. The project labels itself: agent api, agent framework, agent harness, ai agents, ai infrastructure, coding agent, conformance testing and deepseek harness.
harnessrouter runs, with stand-ins for the services it depends on. An Argusic agent installed it in 15 minutes and hit 1 error and fixed every one without help on a clean machine with no GPU, and the whole session was recorded.
Gateway Python tests pass (622/622), runner Python tests pass (490/490), UI TypeScript checks pass, UI production build succeeds, gateway HTTP server answers /healthz with 200, and UI HTTP server serves the login page at 200.
What the agent ended up with on a clean machine, in its own words. How this is measured
Measured by Argusic on a fresh machine every time. Every number links to its evidence. Argusic Score 92 of 100 (the mean of this project's run scores).
At a glance
Subject data from GitHub, linked at the top of this page, refreshed . Test data by Argusic (CC BY 4.0); every number links to a run page with the full log, the recording, and their sha256 hashes.
What was measured
From the run that decided this verdict. Every line is a recorded value, not an estimate.
What went wrong, in the agent's own words
The agent's own words, worst first, never rewritten into advice.
- Next.js build OOM-killed during static page generation with default Node memory (8 GB container limit, but Next.js static generation exceeds available heap)10 minutes
- Install time
- 15 minutes
- Cold machine to finish
- 17 minutes
- Errors hit and fixed
- 1 hit, 1 fixed with no human help
- How the result was proved
- cd /work/repo && HR_SECRET_KEY='test-key-32-chars-minimum-length!!!!' PYTHONPATH=gateway:runner . /tmp/hr-venv/bin/activate && python -m uvicorn app:app --app-dir gateway --host 127.0.0.1 --port 3001 --log-level error (gateway serving /healthz=200 /version=200); and cd ui && HOSTNAME=127.0.0.1 PORT=3002 node .next/standalone/server.js (UI serving login page at HTTP 200 after redirect)
- Model tokens used
- 190,066
- Exact commit tested
- fc8da524f408
- Container image
- sha256:cdd920bce783
What was not measured
The other half, so you can see exactly how far this evidence goes. A gap is printed as a gap and never filled in.
- Peak GPU memory
- this ran on a CPU machine, so there was no GPU to sample
- Behaviour over a long run
- each attempt uses the smallest documented settings and a fixed time budget, so this measures whether it runs, not how it holds up under load
- Behaviour against real services
- this run was verified against stand-in services only
The end of the recording
The last lines of the terminal session that decided this verdict, exactly as they were recorded.
tokens used
190,066
Now I have everything I need. Here's the final summary:
**Python deps** — `pip install` succeeded for both gateway and runner requirements.
**Gateway tests** — 622 passed, 17 skipped.
**Runner tests** — 490 passed, 2 skipped.
**UI deps** — `npm ci` installed 1033 packages (13 vulnerabilities, none blocking).
**UI type-check** — passed (`tsc --noEmit` exit 0).
**UI build** — succeeded with `NODE_OPTIONS=--max_old_space_size=2048` (out-of-memory killed with d…
**UI tests** — no test files found (`jest` matched 0 files).
**Gateway server** — `uvicorn` on port 3001 responds to `/healthz` (200 `{"ok":true,"pool":false,"v…
**UI server** — Next.js standalone on port 3002 serves the self-hosted login page (307 → 200, HTML …Replay the whole session, every command from a clean machine to this point.
How it was tested
One agent, one container, no human help. It installs the project the way its own documentation says to, runs it, and fixes what breaks. Everything below is recorded as it happened: the terminal session, the log and the exact commit. The full method.
Strengths and limits
Measured facts, not opinions. How this is written.
What went well
- Installed in 15 minutes.
- Recovered from all 1 error without a human stepping in, which says the failures are documented well enough to solve.
- Licensed Apache-2.0, as reported by its host.
What did not, or is not known
- Only reached a running state against stand-in services, so nothing here proves it works against the real ones.
- Measured once so far. A single attempt shows it can run, not that it runs reliably.
Also tested, in the same area
Every one of these was installed and run by Argusic on a clean machine. Nothing appears here that was not tested.
Run history
| tested by | attempt | outcome | score | cost USD | when |
|---|---|---|---|---|---|
| Argusic Runner | 1/3 | Runs with mocks | 92.00 | 0.08 |
Topics (from GitHub)
agent-apiagent-frameworkagent-harnessai-agentsai-infrastructurecoding-agentconformance-testingdeepseek-harnessharness-engineeringhermesllmopen-protocolopen-sourceopen-standardpi-coding-agentself-hosteduhpunified-apiunified-harness-protocolunified-interface
Embed the badge
Markdown for the project README. It links back here; terms on the terms page.
[](https://argusic.com/subject/harnessrouter)Questions
- Does harnessrouter run?
- harnessrouter runs, with mocks standing in for external services. Argusic installed and launched it on a clean machine in 15 minutes, hitting 1 error on the way, and recorded the session.
- How did Argusic test harnessrouter?
- On a fresh, disposable machine, with every command recorded and the repository pinned at commit fc8da524f408. One attempt is recorded, and the full method is on the methodology page.
- What did it cost to test harnessrouter?
- The run that produced this verdict cost $0.08: real compute and model cost, not a list price per million tokens. It is recorded on that run's page.
- How long does harnessrouter take to install?
- 15 minutes in the run that decided this verdict, from a clean machine to a running state. That is one measured attempt, not an average.
- Does harnessrouter need a GPU?
- Not to start. Argusic reached a running state on a machine with no GPU.
- What goes wrong when installing harnessrouter?
- 1 thing broke in the recorded run, and 1 were fixed without human help. Each one, and the time it cost, is listed on this page.
- Where is the evidence for harnessrouter?
- The recorded run is on this page, each linking to its full log and terminal recording, stored with a sha256 fingerprint so it cannot be quietly altered.