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Best agent skills for LLM evaluation

We found 489 agent skills for LLM evaluation in the catalog; these are the 15 that rank highest. The order comes from our rank, which weighs adoption, freshness, documentation and publisher identity. Nobody can pay for a place on this list. agent-evals, bmad-eval and eval lead it. research is published by the company that makes it. bmad-eval comes from the largest repository here (54,505 stars). 12 of the 15 had activity in the last 30 days. Each entry lists why it made the list and links to its install page.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

Top 15 of 489

  1. 1
    agent-evals

    devops-skills

    Build automated evaluation suites for AI agents using golden datasets, rubrics, and regression gates.

    • Repository has 48.4K stars
    • Active in the last 30 days
    • Open source (MIT)

    ★ 48.4KLast active Oct 24, 2026Claude Code, Claude apps, Codex, Cursor +6

  2. 2
    bmad-eval

    bmad-code-org

    Runs the evals of a BMad skill through the agent harness the user works in and reports what they show: baseline against the bare model, variant against a…

    • Largest repository here (54,505 stars)
    • Active in the last 30 days
    • Ships helper scripts

    ★ 54.5KLast active Oct 14, 2026Claude Code, Claude apps, Codex, Cursor +6

  3. 3
    eval

    PrimeIntellect-ai

    Launch and monitor prime-rl evals — the `uv run eval` entrypoint, its config and CLI shorthands, run directory, resume, logs and metrics.

    • Repository has 2.2K stars
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 2.2KLast active Oct 23, 2026Claude Code, Claude apps, Codex, Cursor +6

  4. 4

    Capture and review Agent Skill observations, and create, run, diagnose, or iteratively improve Skill evaluations (evals) with the skill-up CLI.

    • Repository has 1.3K stars
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 1.3KLast active Oct 22, 2026Claude Code, Claude apps, Codex, Cursor +6

  5. 5
    research

    fw-aiOfficial

    Plan Fireworks post-training from a task-shaped goal — recommend a method, cookbook entry, data plan, and eval from what the user already said, ask only…

    • Published by the vendor
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 231Last active Oct 21, 2026Claude Code, Claude apps, Codex, Cursor +6

  6. 6
    eval-improve

    malloydata

    Make the smallest safe edit that closes a diagnosed gap the model repo owns: a Malloy model edit, or a package skill under skills/.

    • Active in the last 30 days
    • Open source (MIT)
    • Ships helper scripts

    ★ 118Last active Oct 18, 2026Claude Code, Claude apps, Codex, Cursor +6

  7. 7
    eval-answer

    malloydata

    Score one analytical answer against a verified golden, and score which of the entities the golden depends on retrieval delivered to the answerer.

    • Active in the last 30 days
    • Open source (MIT)
    • Ships helper scripts

    ★ 118Last active Oct 18, 2026Claude Code, Claude apps, Codex, Cursor +6

  8. 8
    mllm-eval

    Aperivue

    Use when designing or auditing how an LLM or multimodal LLM is evaluated on a clinical task (report generation, VQA, text extraction).

    • Active in the last 30 days
    • Open source (MIT)
    • Ships helper scripts

    ★ 349Last active Oct 4, 2026Claude Code, Claude apps, Codex, Cursor +6

  9. 9
    analyze

    UiPath

    Analyze a finished coder-eval run and write analysis.md — cluster failures into systemic patterns and recommend fixes.

    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 154Last active Oct 21, 2026Claude Code, Claude apps, Codex, Cursor +6

  10. 10

    Generate and run a coder-eval activation suite for a Claude Code skill.

    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 154Last active Oct 21, 2026Claude Code, Claude apps, Codex, Cursor +6

  11. 11

    Eval-driven skill tuning.

    • Repository has 1.2K stars
    • Open source (MIT)
    • Ships helper scripts

    ★ 1.2KLast active Sep 11, 2026Claude Code, Claude apps, Codex, Cursor +6

  12. 12

    Spawns the decision-scorer agent after architect proposes 2+ variants in an ADR.

    • Active in the last 30 days
    • Open source (MIT)

    ★ 105Last active Oct 23, 2026Claude Code, Claude apps, Codex, Cursor +6

  13. 13
    eval-harness

    sangrokjung

    Formal evaluation framework for Claude Code sessions implementing eval-driven development (EDD) principles

    • Open source (MIT)

    ★ 863Last active Aug 25, 2026Claude Code, Claude apps, Codex, Cursor +6

  14. 14
    advanced-evaluation

    muratcankoylan

    This skill should be used for advanced LLM evaluation: LLM-as-judge systems, direct scoring, pairwise comparison, rubric calibration, evaluator bias…

    • Repository has 18.2K stars
    • Open source (MIT)
    • Ships helper scripts

    ★ 18.2KLast active Jun 29, 2026Claude Code, Claude apps, Codex, Cursor +6

  15. 15
    suede-ai-eval

    JasonColapietro

    Suede AI eval design and coverage audit: AI-SPEC, failure-mode rubric with severity scoring, concrete pass/fail eval cases, coverage and infrastructure…

    • Active in the last 30 days
    • Open source (MIT)

    ★ 125Last active Oct 24, 2026Claude Code, Claude apps, Codex, Cursor +6