Scaffold agent eval harness skills

.claude-plugin/plugin.json

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+{
+  "name": "agent-eval-harness",
+  "version": "0.1.0",
+  "description": "Agent and skill evaluation harness with MLflow integration",
+  "author": {
+    "name": "opendatahub-io"
+  },
+  "homepage": "https://github.com/opendatahub-io/agent-eval-harness",
+  "repository": "https://github.com/opendatahub-io/agent-eval-harness",
+  "license": "Apache-2.0",
+  "keywords": [
+    "evaluation",
+    "testing",
+    "skills",
+    "agents",
+    "mlflow"
+  ]
+}

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*.egg-info/
+*.egg
+dist/
+build/
+.venv/
+venv/
+
+# Eval runs and state
+eval/runs/
+tmp/
+
+# MLflow
+mlflow.db
+mlruns/
+
+# Environment and secrets
+.env
+.env.*
+*.key
+*.pem
+secrets/
+credentials/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+
+# OS
+.DS_Store

CLAUDE.md

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+# Agent Eval Harness
+
+Generic evaluation framework for Claude Code skills projects. Uses MLflow as the backbone for tracing, evaluation, datasets, and reporting.
+
+## Project Status
+
+Phase 1 (core framework) and Phase 2 (scoring integration) are implemented. See `eval/plans/agent-eval-harness-design.md` in the rfe-creator project for the full design doc.
+
+## Architecture
+
+```
+agent_eval/              # Python package (config, runner, state)
+  config.py              # EvalConfig from eval.yaml
+  state.py               # Shared state persistence (key-value store)
+  agent/
+    base.py              # EvalRunner ABC + RunResult
+    claude_code.py       # Claude Code CLI runner (claude --print)
+  mlflow/
+    experiment.py        # MLflow experiment setup, server check, feedback logging
+    datasets.py          # Dataset create/sync utilities
+    traces.py            # Trace search and input extraction
+
+skills/eval-setup/       # Skill: environment setup
+  SKILL.md               # Dependencies, MLflow, API keys, directories
+  scripts/
+    check_env.py         # Preflight environment checks
+
+skills/eval-analyze/     # Skill: bootstrap eval config
+  SKILL.md               # Analyze skill, generate eval.yaml + eval.md
+  scripts/
+    find_skills.py       # Skill discovery (reads plugin.json for paths)
+    validate_eval.py     # Config and memory validation
+  prompts/
+    analyze-skill.md     # Skill analysis prompt
+    generate-eval-md.md  # eval.md generation prompt
+  references/
+    eval-yaml-template.md # Full eval.yaml template for generation
+
+skills/eval-dataset/     # Skill: generate test cases
+  SKILL.md               # Bootstrap, expand, or extract cases from traces
+
+skills/eval-run/         # Skill: execute eval suite
+  SKILL.md               # Prepare, execute, collect, score, report
+  scripts/
+    workspace.py         # Workspace creation, batch.yaml, symlinks
+    execute.py           # Skill execution via agent runner
+    collect.py           # Artifact collection + case mapping
+    score.py             # Scoring: inline checks, LLM judges, pairwise, regression
+    report.py            # HTML report generation (scoring summary, per-case details, diffs)
+    tools.py             # PreToolUse hook for tool interception
+  prompts/
+    analyze-results.md   # Results interpretation prompt
+    comparison-judge.md  # Pairwise comparison judge prompt
+  references/
+    data-pipeline.md     # Dataset → workspace → execution → scoring flow
+    tool-interception.md # Tool interception format and field reference
+
+skills/eval-review/      # Skill: interactive human review
+  SKILL.md               # Present results, collect feedback, propose changes
+  prompts/
+    review-results.md    # Analysis framework for feedback patterns
+
+skills/eval-mlflow/      # Skill: MLflow integration
+  SKILL.md               # Dataset sync, result logging, trace feedback
+  scripts/
+    sync_dataset.py      # Push cases to MLflow dataset registry
+    log_results.py       # Log run params, metrics, artifacts to MLflow
+    attach_feedback.py   # Push/pull feedback between harness and traces
+    from_traces.py       # Extract inputs from production traces
+
+skills/eval-optimize/    # Skill: automated refinement loop
+  SKILL.md               # Composes with /eval-run via Skill tool
+```
+
+## How It Works
+
+Skills projects create an `eval.yaml` config file with:
+- `skill` — skill to evaluate
+- `arguments` — arguments string passed to the skill invocation
+- `runner` — agent runner (`claude-code`, etc.), `runner_options` for runner-specific settings
+- `permissions` — `allow`/`deny` tool patterns for headless execution
+- `dataset` — `path` to test cases directory, `schema` describing case structure in natural language
+- `inputs.tools` — tool interception for headless eval: `match` describes what to intercept, `prompt` how to handle it
+- `outputs` — list of artifact dirs (`path`) and/or tool calls (`tool`) with natural language schemas
+- `traces` — execution data to capture: stdout/stderr, events, metrics (exit code, tokens, cost)
+- `judges` — inline `check` scripts, LLM `prompt`/`prompt_file`, external `module`/`function`
+- `thresholds` — regression detection per judge
+
+Runs are stored in `$AGENT_EVAL_RUNS_DIR` (default `eval/runs`), configured during `/eval-setup`.
+
+The `schema` descriptions are documentation for the LLM agents and judges. Scripts operate on file paths from eval.yaml directly — no extraction spec, no hardcoded field names.
+
+## Usage
+
+```
+/eval-setup                            # Setup: dependencies, MLflow, API keys
+/eval-analyze --skill my-skill         # Analyze: understand skill, generate eval.yaml
+/eval-dataset                          # Dataset: generate test cases
+/eval-run --model opus                 # Run: execute eval suite
+/eval-review --run-id <id>             # Review: interactive human feedback + changes
+/eval-mlflow --run-id <id>             # MLflow: sync dataset, log results
+/eval-optimize --model opus            # Optimize: automated refinement loop
+```
+
+## Key Design Decisions
+
+1. **Schema-driven** — dataset and output structures described in natural language in eval.yaml; agents and judges interpret them, scripts just move files
+2. **Agent-agnostic runner** — `EvalRunner` ABC with `--agent` flag on execute.py; Claude Code included, extensible to OpenCode/Agent SDK
+3. **Three judge types** — inline `check` scripts, LLM `prompt`/`prompt_file`, external `module`/`function`
+4. **MLflow as separate skill** — `/eval-mlflow` handles dataset sync, result logging, trace feedback; eval-run works without it
+
+## Remaining Work
+
+- Skills and refinement loop (`/eval-optimize` implementation)
+- MLflow tracing integration (extended transcript parser with subagent hierarchy)
+- CI integration patterns
+- Testing and documentation
+- Publish to PyPI or marketplace