Harness · managed
Grok Build
Model-native coding harness. Worktrees, fan-out, harness-aware evals.
Publisher
xAI
License
proprietary
Latest
0.9.2
Installs
41,800
Thesis
Grok Build is xAI's coding harness: isolated worktrees, multi-agent fan-out, and a runtime that treats the harness as the product rather than a wrapper around a chat API.
Grok Build is listed as managed. The interesting property for mixed fleets is the native fan-out: a parent agent can open N worktrees without the operator standing up Helix. At 200 agents this is cheaper than an orchestrator. At 2,000 it is not — pair it with helix-supervisor.
Direction
This listing is a reference. The tree lives at origin. The command is how you load it here.
Subscribe (usage) → hm install xai/grok-build@0.9.2
Export OpenTelemetry gen-ai spans. Harnessmarket attribution will not invent what the runtime did not emit.
Versions
| Semver | SHA | Released | Notes | Signed |
|---|---|---|---|---|
| 0.9.2 | b7d21e9 | 2026-08-21 | Worktree pool reuse. Attribution spans exported. | signed · sbom |
| 0.8.0 | 44aa11b | 2026-06-30 | Multi-agent fan-out GA. Desk telemetry. | signed · sbom |
Subscribe
$0.01
Usage · agent-hour hosted
Enterprise from $42,000
Subscribe, then pin. Entitlement is checked at deploy, not in a PDF.
Compatibility
- grok-build
Permission manifest
- fs.read
- **
- fs.write
- **
- network
- registry.harness.market, api.github.com
- exec / secrets
- exec · GITHUB_TOKEN