Skills for Real Engineers. Straight from my .agents directory.
ai-eval-plan
Agent skill frommohitagw15856/pm-claude-skills
Design an evaluation plan for an LLM or AI feature before shipping it. Use when asked how to evaluate a prompt/model/agent, set up an eval harness, define quality metrics for an AI feature, or build a regression gate. Produces an eval plan — task definition, datasets, metrics & rubrics, baselines, automated + human evals, a pass bar, and a regression gate.
How to install ai-eval-plan
npx skills add mohitagw15856/pm-claude-skills# or add only this skill to Claude Code: copy the folder
skills/ai-eval-plan/
# into
~/.claude/skills/ai-eval-plan/ (all projects)
.claude/skills/ai-eval-plan/ (one project)
1# AI Eval Plan Skill23You can't improve an AI feature you can't measure, and "it looks good in the demo" is not measurement.4This skill produces an evaluation plan that turns a fuzzy quality goal into a repeatable, gated test —5so a prompt change that quietly makes outputs worse can't ship.67## Required Inputs89Ask for these only if they aren't already provided:1011- **The feature & task** — what the model does and what "good output" means to a user.12- **Failure modes that matter** — what bad looks like (hallucination, wrong format, unsafe, off-tone, too slow).13- **Available data** — any real examples, logs, or labelled cases; or note there are none yet.14- **Who judges quality** — automated checks, an LLM judge, human raters, or a mix.15- **The decision this gates** — ship/no-ship, model selection, or prompt iteration.1617## Output Format1819### Eval Plan: [feature]2021**1. What we're measuring** — the task, and a one-line definition of a good vs. bad response.2223**2. Eval dataset**24- **Cases:** how many, where they come from (real logs > synthetic), and how they're split (smoke set vs. full set).25- **Coverage:** the slices/scenarios that must be represented (edge cases, adversarial, each major input type).26- **Golden answers / references:** present or not, and how they were created.2728**3. Metrics & rubric**29- **Per-dimension scores** — define each dimension (e.g. correctness, grounding, format, safety, tone) on an explicit 1–5 rubric with anchor descriptions, not vibes.30…
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