Eval Harness Design
Use when agent evals need graders, pass@k, regression gates, or reliability evidence.
Install
$ agentstack add skill-jukrap-ai-agent-playbook-eval-harness-design ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-jukrap-ai-agent-playbook-eval-harness-design) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Eval Harness Design
Use this as the primary delivery skill for eval-driven changes to agent workflows, prompts, MCP tools, skills, or automation surfaces.
Workflow
- Define the target behavior, risk class, baseline, failure modes, and release decision before changing the harness.
- Choose deterministic code, schema, or rule graders before model or human graders.
- Separate capability evals from regression evals, then set pass@k, pass^k, cost, latency, and repeatability expectations.
- Store eval definitions and run reports as runtime evidence until reviewed and promoted.
Reference
Read references/eval-artifact-contract.md for eval definition, run report, evidence envelope, and storage boundaries.
Read references/grader-and-metric-rubric.md for grader choice, metric thresholds, pass@k usage, and anti-overfitting checks.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: jukrap
- Source: jukrap/ai-agent-playbook
- License: MIT
- Homepage: https://www.npmjs.com/package/ai-agent-playbook
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.