operator-eval

operator-eval is a skill for Claude Code, Codex from JetXu-LLM/DocMason. It costs 27 tokens per session (345 once invoked), scanned A, original, Apache-2.0.

A private workflow for evaluating and reviewing coding-agent behavior using local test requests and saved results. It is intended for advanced operator tasks rather than normal user requests.

In plain words
What is it for?
It helps run one of four evaluation actions: a test suite, regression review, candidate promotion, or baseline freezing, then report the resulting files and next correction.
Why use it?
It gives operators a controlled way to run evaluations, inspect regressions, approve candidates, and record a fixed baseline. It also keeps live evaluation data separate from tracked project files.

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/jetxu-llm/docmason/operator-eval
Any agent
npx skills add JetXu-LLM/DocMason --skill operator-eval
Clone the repo
git clone --depth 1 https://github.com/JetXu-LLM/DocMason

Made for: Claude Code, Codex.

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 operator-eval

README.md
[![agentmods](https://agentmods.dev/badge/skills/jetxu-llm/docmason/operator-eval.svg)](https://agentmods.dev/skills/jetxu-llm/docmason/operator-eval)
Your own site
<a href="https://agentmods.dev/skills/jetxu-llm/docmason/operator-eval"><img src="https://agentmods.dev/badge/skills/jetxu-llm/docmason/operator-eval.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 345 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 $0.00027 $0.00345
Opus 5 $0.00014 $0.00172
Sonnet 5 $0.00005 $0.00069
Haiku 4.5 $0.00003 $0.00034

Measured 5d ago against content hash 1caccec51b07, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

operator-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 5d ago.

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/operator/operator-eval/SKILL.md · 38 lines

What it actually says

Operator Eval

Use this workflow only for advanced operator-quality tasks such as replayable evaluation runs, regression review, candidate promotion, and baseline freezing.

This workflow is intentionally open-source but non-first-contact. Do not surface it in ordinary user entry flows, and do not treat it as part of the default ask experience.

Required Capabilities

  • local file access
  • shell or command execution
  • ability to inspect structured JSON output

Procedure

  1. Read the current operator request from runtime/eval/requests/current.json.
  2. Validate the request against the tracked examples in skills/operator/operator-eval/examples/.
  3. Execute exactly one requested action through the operator-eval runtime surface:
    • run-suite
    • review-regressions
    • promote-candidate
    • freeze-baseline
  4. Keep live eval truth under runtime/eval/, not under tracked repository paths.
  5. Keep review of ordinary runtime activity under runtime/logs/.
  6. Treat tracked examples as schema guidance only. Never commit confidential runtime/eval payloads.
  7. Return the operator-facing result, written artifacts, and next corrective step to the main agent.

Notes

  • This workflow is intentionally absent from first-contact guidance.
  • Frozen baselines and promotion decisions remain human-governed even though this workflow is productized.
  • skills/operator/operator-eval/examples/ exists so fresh open-source users can understand the local-only artifact contracts without access to private corpus data.
Files

What ships with it

7 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. 5d ago First seen · 38 lines · 27 tokens per session scan A 1caccec51b07

Subscribe to this mod's changes

operator-eval is a skill published in the GitHub repository JetXu-LLM/DocMason (135 stars, last pushed yesterday), licensed Apache-2.0. It adds 27 tokens to every session and 345 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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