comparator

comparator is an agent for Claude Code from DennisLiuCk/claude-plugin-marketplace. It costs 78 tokens per session (2,052 once invoked), scanned A, original, no licence file.

An evaluation agent that compares two outputs without knowing which skill produced each one. It judges only their quality and how fully they complete the task.

In plain words
What is it for?
It compares two skill versions or other outputs and selects the better result based on task completion and output quality.
Why use it?
Blind comparison reduces the chance that knowledge of the source changes the evaluation.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the skill-creator plugin — 1 skill, 3 agents shipped together

Good fit It compares two skill versions or other outputs and selects the better result based on task completion and output quality.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/dennisliuck/claude-plugin-marketplace/comparator
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.

Clone the repo
git clone --depth 1 https://github.com/DennisLiuCk/claude-plugin-marketplace

Made for: Claude Code.

Or install skill-creator, the plugin that ships this one along with the rest of its 1 skill, 3 agents.

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 comparator

README.md
[![agentmods](https://agentmods.dev/badge/agents/dennisliuck/claude-plugin-marketplace/comparator.svg)](https://agentmods.dev/agents/dennisliuck/claude-plugin-marketplace/comparator)
Your own site
<a href="https://agentmods.dev/agents/dennisliuck/claude-plugin-marketplace/comparator"><img src="https://agentmods.dev/badge/agents/dennisliuck/claude-plugin-marketplace/comparator.svg" alt="Measured on agentmods" height="20"></a>
Per session 78 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,052 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00078 $0.02052
Opus 5 $0.00039 $0.01026
Sonnet 5 $0.00016 $0.00410
Haiku 4.5 $0.00008 $0.00205

Measured 7d ago against content hash 529558b22a44, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

comparator 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 7d 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.

plugins/skill-creator/agents/comparator.md · 202 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 7d ago First seen · 202 lines · 78 tokens per session scan A 529558b22a44

Subscribe to this mod's changes

comparator is an agent published in the GitHub repository DennisLiuCk/claude-plugin-marketplace (26 stars, last pushed 6mo ago), with no licence file. It adds 78 tokens to every session and 2,052 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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