ai.autonomous.harness/harness
Harness
Start Claude Code and Codex agents the person can watch, wait for them and read their answers.
alive probed 2026-10-19
1tools
≈ 56tokens, estimate
≈ <0.1 %of Claude's 200k window
0.0×the median server
69 msto initialize
4 msto list tools
- Run it
- npx -y @autonomous-ai/harness-mcp@0.2.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- harness 0.1.0
- Capabilities
- tools
- Instructions
- 756 characters
- Of a 1M window
- ≈ <0.1 % of a 1M context window, estimate
- Claude count
- The count_tokens endpoint refused the tool schemas: invalid x-api-key. The estimate stands in.
- Repository
- https://github.com/autonomous-ai/openharness
- Website
- https://harness.autonomous.ai/agents
- Registry
- active, updated 2026-10-19 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
Estimates with the o200k_base tokenizer.
| Tool | o200k estimate | Share of this server |
|---|---|---|
| harness_setup | 56 | 100 % |
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The Anthropic count_tokens endpoint refused the tool schemas (invalid x-api-key). A client that validates schemas can refuse them too.