HarnessmarketEnter the desk
/HMX Claude Code 29.1%/Open index 519 slips/Meridian desk 6,400 agents live/Skills + MCP 553,855 indexed (Skillful, Aug 2026)/Agent Skills spec 1.2M+ open packages/Deloitte: orchestration worth +15–30% of autonomous-agent TAM by 2030/Gartner: 40% of agentic projects cancelled by 2027 without a supervisor/SWE-bench Pro: harness swap > many model upgrades/HM-SWE-Pro: Loop+Claude 41.2 pass@1 · chat 18.2 · same model/Lewis 2608.26218: F2PF 28→49 under a tighter harness, same model/ACES: Skill Lift 0.21 · 947 paired cases · scan vs live ρ=0.14/Tokenomics: code review 59.4% of ChatDev tokens/HMX Claude Code 29.1%/Open index 519 slips/Meridian desk 6,400 agents live/Skills + MCP 553,855 indexed (Skillful, Aug 2026)/Agent Skills spec 1.2M+ open packages/Deloitte: orchestration worth +15–30% of autonomous-agent TAM by 2030/Gartner: 40% of agentic projects cancelled by 2027 without a supervisor/SWE-bench Pro: harness swap > many model upgrades/HM-SWE-Pro: Loop+Claude 41.2 pass@1 · chat 18.2 · same model/Lewis 2608.26218: F2PF 28→49 under a tighter harness, same model/ACES: Skill Lift 0.21 · 947 paired cases · scan vs live ρ=0.14/Tokenomics: code review 59.4% of ChatDev tokens

Harness · reviewed

OpenCode

MIT, model-agnostic. The OSS control plane for mixed-lab fleets.

OriginSubscribe on desk

Publisher

OpenCode

License

mit

Latest

0.22.0

Installs

77,400

Thesis

OpenCode is the default open harness. It does not care which lab you pay. That makes it the right control for attribution experiments and for operators who refuse a single-vendor loop.

Community trust-tier for plugins; the core runtime is reviewed and signed by the foundation. Pair with Northstar's scanner before any Skill from the public graph loads. At 10k agents you still need Helix — OpenCode is a worker, not a supervisor.

Direction

This listing is a reference. The tree lives at origin. The command is how you load it here.

hm install opencode/opencode@0.22.0

Free to run. Paid path is Harnessmarket hosting plus a certified Skill allowlist.

Versions

SemverSHAReleasedNotesSigned
0.22.00c0dede2026-08-19Harness-native Skills. Permission block from tools allowlist.signed · sbom
0.18.0aaaabbb2026-05-03Multi-provider routing.signed · sbom

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Open

Open · runtime

Enterprise from $12,000

No subscription. Pin the SHA. Production still requires signed.

Origin

github.com/sst/opencode

via github

Open origin →

Compatibility

  • opencode

Permission manifest

fs.read
**
fs.write
**
network
—
exec / secrets
exec

Publisher

OpenCode

Model-agnostic open-source coding harness. MIT, no lab lock-in.