agentic-bench: Skill for Claude Code

.claude/skills/eval-reporter/SKILL.md

eval-reporter is a skill for Claude Code from nyosegawa/agentic-bench. It costs 81 tokens per session (951 once invoked), scanned B, original, MIT.

A workflow for turning model evaluation results into HTML reports and structured metrics files. Model evaluation compares how well different AI models perform on defined tests.

In plain words
What is it for?
Use it to collect benchmark results, write metrics.json, embed generated images or audio, and create reports in dated model-result folders.
Why use it?
It organizes outputs, measurements, timings, costs, and device details so results can be reviewed and compared consistently.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths.

This is nyosegawa/agentic-bench's own configuration. It tells Claude Code how to work on agentic-bench itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything agentic-bench configures →

Reuse

Borrowing it

Nothing to install: this file belongs to nyosegawa/agentic-bench. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/nyosegawa/agentic-bench/main/.claude/skills/eval-reporter/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/nyosegawa/agentic-bench

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for eval-reporter

README.md
[![agentmods](https://agentmods.dev/badge/skills/nyosegawa/agentic-bench/eval-reporter/github.svg)](https://agentmods.dev/skills/nyosegawa/agentic-bench/eval-reporter)
Your own site
<a href="https://agentmods.dev/skills/nyosegawa/agentic-bench/eval-reporter"><img src="https://agentmods.dev/badge/skills/nyosegawa/agentic-bench/eval-reporter/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for eval-reporter

Your own site · 80×15
<a href="https://agentmods.dev/skills/nyosegawa/agentic-bench/eval-reporter"><img src="https://agentmods.dev/badge/skills/nyosegawa/agentic-bench/eval-reporter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 951 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00081 $0.00951
Opus 5 $0.00041 $0.00476
Sonnet 5 $0.00016 $0.00190
Haiku 4.5 $0.00008 $0.00095

Measured 9d ago against content hash d2d5460dfd1e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

eval-reporter scanned grade B with 1 finding 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 9d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/generate_index.py, scripts/metrics_writer.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.

Asks the agent to reveal its instructionsmediumSystem prompt leakage

Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.

- Image gen: show prompt above each `<img>`
.claude/skills/eval-reporter/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Eval Reporter

You are generating evaluation reports from model benchmark results.

Your Goal

Given evaluation outputs and metrics:

  1. Write structured metrics.json with all measurements
  2. Write a beautiful HTML report directly (no template — you design the page)
  3. Save everything to results/YYYY-MM-DD_modelname/

Workflow

Step 1: Collect Data

Gather from the previous phases:

  • Model profile from research phase: name, URL, description, architecture, params, license, notable features
  • Stage results: smoke test pass/fail, quality outputs, performance metrics
  • Generated artifacts: images, audio, text files in artifacts/
  • Timing and cost information
  • Device info: GPU, VRAM, framework versions

Step 2: Write metrics.json

Run the metrics writer:

python .claude/skills/eval-reporter/scripts/metrics_writer.py \
  --output results/YYYY-MM-DD_modelname/metrics.json \
  --model MODEL_ID \
  --model-type MODEL_TYPE \
  --provider PROVIDER \
  --gpu GPU_NAME \
  --json-data '{"stages": {...}}'

Or construct the JSON directly following references/report-format.md.

Step 3: Write HTML Report

Write the HTML yourself. Do not use a template. You are an ML engineer writing a report for a technical audience. Design the page to be informative, honest, and beautiful.

Consult references/report-format.md for design guidelines (CSS palette, component examples).

Required sections:

  1. Header — Model name (linked to HuggingFace page), type badge, date, provider/GPU
  2. Model Overview — Architecture, parameter count, license, key features, 1-2 sentence description from model card
  3. Execution Environment — GPU, VRAM, framework versions, provider
  4. Smoke Test — Pass/fail, load time, any issues
  5. Quality Results — Test inputs paired with outputs:
    • TTS: show input text above each <audio> player
    • Image gen: show prompt above each <img>
    • LLM: show prompt and response together
    • Always show what went IN and what came OUT
  6. Performance — Key metrics table, comparison to published benchmarks if known
  7. Conclusion — Your honest assessment: strengths, weaknesses, comparison to claimed performance, practical recommendations
  8. Reproduction — Link to workspace/run.py, note the provider and cost

Read the full file on GitHub · 107 lines

Files

What ships with it

3 files 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. 9d ago First seen · 107 lines · 81 tokens per session scan B d2d5460dfd1e

Subscribe to this mod's changes

eval-reporter is a skill published in the GitHub repository nyosegawa/agentic-bench (5 stars, last pushed 6mo ago), licensed MIT. It adds 81 tokens to every session and 951 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 1 finding (asks the agent to reveal its instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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