harness2 SKILL.md skillA
harness2 from akillness/jeo-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add akillness/jeo-skills/harness2@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- akillness/jeo-skills
- Path
.agent-skills/harness2/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Oct 21, 2026
- Size
- 7,158 bytes
- Repository stars
- 52
- License
- none declared
Operate google-research/harness2 (Harness²), the Apache-2.0 framework for recursive agent harnessing: refine the prompts, guardrails, memory, tool guidance, subagents, skills, scripts, and plugins around a fixed model through contrastive Propose-Probe-Compose steps and a per-domain improvement library. Use when a user wants to run the credential-free local demo, preflight or set up the LAB, JobBench, or WorkBuddy benchmarks, budget and launch a parallel or sequential refinement run with…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Harness² operator ## When to use this skill Use it when the job is improving the *harness* around a fixed model — not its weights — and the evidence must come from executions: run the upstream pipeline, budget it, judge it, or apply its Propose–Probe–Compose method to a project's own agent instructions, skills, subagents, or hooks. Designing an agent team belongs here as method mode: a team is the subagents component plus the routing text that triggers it, and each role must win a probe. Route out: reusable `SKILL.md` ratcheting → `skill-autoresearch`; coordination-failure evals for an existing multi-agent system → `multi-agent-eval-harness`; production traces → `agent-observability`; running a team on a runtime → `paperclip`, `ruflo`, or `zeroshot`. ## Instructions 1. **Run the offline gate first.** From the repository root: `python3 .agent-skills/harness2/scripts/preflight.py --json`; from an installed skill root: `python3 "$SKILLS_ROOT/harness2/scripts/preflight.py" --json`. Use `--bench method` for manual method mode (host facts only; no tool is required), or `--bench lab|jb|wb` with …
Read the whole file at its exact version.
How to install
mdr add akillness/jeo-skills/harness2@sha256:67eca80575f4e188The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_4q5gxuj75qfd2egp)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 21, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7158 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
akillness/jeo-skills · 52 stars · license none declared · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4q5gxuj75qfd2egp GET https://markdownregistry.com/api/v1/resolve?ref=akillness/jeo-skills/harness2 GET https://markdownregistry.com/api/v1/blob/67eca80575f4e188edbb1ddf36f89d553de63108b325713794df270527a6ee2a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.