agentv-eval-review

A checker and reviewer for AgentV evaluation YAML files. It checks both the file structure and the quality of the tests and grading rules.

In plain words
What is it for?
Use it before committing evaluation files to validate their structure, review assertions and expected results, and identify quality issues.
Why use it?
It catches missing fields, invalid paths, schema problems, duplicate checks, and evaluations that do not clearly define how success is judged.

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/entityprocess/agentv/agentv-eval-review
Any agent
npx skills add EntityProcess/agentv --skill agentv-eval-review
Clone the repo
git clone --depth 1 https://github.com/EntityProcess/agentv

Made for: Claude Code, Codex.

Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 683 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 $0.00081 $0.00683
Opus 5 $0.00041 $0.00342
Sonnet 5 $0.00016 $0.00137
Haiku 4.5 $0.00008 $0.00068

Measured yesterday against content hash 9175ed132b0e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agentv-eval-review 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 yesterday.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/lint_eval.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.

skills-data/agentv-eval-review/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Eval Review

Overview

Lint and review AgentV eval YAML files for structural issues, schema compliance, and quality problems. Apply this checklist deterministically first, then layer LLM judgment for semantic issues a checklist cannot catch.

Process

Step 1: Structural checklist

Walk every target eval file and report violations grouped by severity (error > warning > info). For each finding, include the file path and a concrete fix.

  • File extension is .eval.yaml (error if not).
  • description field is present at the top level (error if missing).
  • Each entry under tests has id, input, and at least one of criteria / expected_output / assert (error if missing).
  • File-typed inputs (type: file) use a leading / in their path (error if relative).
  • Tests have an assert block — flag tests that rely solely on expected_output (warning).
  • Flag criteria that duplicates assertion strings when assertions already express the grading contract (warning — remove the duplicate criteria).
  • Prefer plain assertion strings over multiple named type: llm-rubric blocks when the default LLM rubric grader can evaluate the checks (info unless custom prompts or grader targets are present).
  • Detect expected_output prose patterns like "The agent should..." or "The output is..." (warning — expected_output should be a golden/reference answer; scoring rules belong in assertions or, for implicit-grader cases, criteria).
  • For historical or repo-state evals, verify the relevant repo is pinned under workspace.repos[].commit; a SHA mentioned only in prompt prose or metadata is not an operational checkout (warning).
  • Identical file inputs repeated across multiple tests in the same eval should be hoisted to a top-level input (info).
  • Eval files in the same directory should share a common id prefix (info — flag drift).

Step 2: Semantic review (LLM judgment)

The structural checklist catches mechanical issues but cannot assess:

  • Factual accuracy — Do tool/command names in expected_output match what the skill documents?
  • Coverage gaps — Are important edge cases missing?
  • Assertion discriminability — Would assertions pass for both good and bad output?
  • Cross-file consistency — Do output filenames match across evals and skills?

Read the full file on GitHub · 57 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. yesterday First seen · 57 lines · 81 tokens per session scan A 9175ed132b0e

Subscribe to this mod's changes

agentv-eval-review is a skill published in the GitHub repository EntityProcess/agentv (15 stars, last pushed 1mo ago), licensed MIT. It adds 81 tokens to every session and 683 once invoked, about $0.0004 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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