eval

A benchmark evaluation workflow for testing a finished machine-learning model on the benchmark's real test process and recording the results.

In plain words
What is it for?
Use it to run evaluations, compare model checkpoints, summarize scores, inspect example outputs, and identify whether problems come from data, training, or how the model is run.
Why use it?
It keeps model comparisons reproducible and makes failures easier to understand by requiring logs, metrics, sample results, and notes about likely causes.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/simple-agent-lab/autotrainess/eval
Any agent
npx skills add simple-agent-lab/AutoTrainess --skill eval
Clone the repo
git clone --depth 1 https://github.com/simple-agent-lab/AutoTrainess

Made for: Claude Code, Codex.

Per session 13 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 576 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00013 $0.00576
Opus 5 $0.00006 $0.00288
Sonnet 5 $0.00003 $0.00115
Haiku 4.5 $0.00001 $0.00058

Measured 2d ago against content hash 391ece948e40, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

eval scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/summarize_eval_samples.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

autotrainhub/eval/SKILL.md · 42 lines

How it starts

The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.

eval

Purpose

Run the benchmark's real evaluation on final_model/ and record reproducible evidence needed for the next stage decision.

Inputs

  • Workspace repository (current working directory).
  • final_model/.

Required outputs

  • eval_results/ with raw outputs or logs.
  • The exact evaluation command or config used.
  • A concise metrics summary.
  • eval_results/sample_summary.md with 15 randomly selected evaluation samples, including score, input, target, and model output.
  • A brief note on the main 1-3 observed failure modes and whether each one looks more like a data problem, a training problem, or an inference/template problem.

Rules

  • Use the benchmark's real evaluation entrypoint.
  • If evaluation fails, stay in the benchmark's real evaluation workflow, debug the failure, and retry.
  • For any evaluation used to compare checkpoints, judge model quality, or choose the next iteration, use at least max(32, ceil(5% of the benchmark)) samples. If the benchmark has fewer than 32 samples, evaluate the full benchmark.
  • Runs below that sample floor are allowed only as smoke tests for command or runtime validity; do not use them as evidence that one checkpoint or approach is better.
  • Always produce eval_results/sample_summary.md with 15 random evaluation samples.
  • Use skills/eval/scripts/summarize_eval_samples.py when the benchmark outputs compatible inspect_ai logs; otherwise, add the minimum benchmark-specific script or logging needed to generate the sample summary from the real evaluation run.
  • Keep the output focused on evidence needed for the next decision.

Procedure

  1. Locate the canonical evaluation entrypoint.
  2. If using a limited evaluation, determine the benchmark sample count and choose a limit that satisfies the sample-floor rule.
  3. Run evaluation on final_model/.
  4. Save raw outputs, commands, the sample count or limit used, and a concise metrics summary under eval_results/.
  5. If evaluation fails, debug it inside the benchmark's real evaluation workflow, then retry with the minimum necessary fix.
  6. Generate eval_results/sample_summary.md with 15 random samples including score, input, target, and model output. Use skills/eval/scripts/summarize_eval_samples.py when compatible inspect_ai logs are available; otherwise, add the minimum benchmark-specific script or logging needed.
  7. Verify that eval_results/sample_summary.md was generated and contains 15 samples.
  8. Summarize the main 1-3 observed failure modes and whether each one looks more like a data problem, a training problem, or an inference/template problem.

Read the full file on GitHub · 42 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 42 lines · 13 tokens per session scan A 391ece948e40

Subscribe to this mod's changes

eval is a skill published in the GitHub repository simple-agent-lab/AutoTrainess (21 stars, last pushed 1mo ago), licensed MIT. It adds 13 tokens to every session and 576 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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