coder-eval

A test and benchmarking toolkit for coding-agent skills, checking whether skills activate when they should and how well an AI coding agent completes defined tasks.

In plain words
What is it for?
Use it to write evaluation tasks, run them against coding agents, measure results, test skill triggering, and review the evidence.
Why use it?
It replaces guesswork about agent behavior with repeatable evaluations that can be analyzed locally or used as a continuous-integration gate.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add UiPath/coder_eval
agentmods
npx agentmods add plugins/uipath/coder_eval/marketplace
Clone the repo
git clone --depth 1 https://github.com/UiPath/coder_eval

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

coder-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 yesterday.

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.

.claude-plugin/marketplace.json · 36 lines

What it actually says

{
  "$schema": "https://json.schemastore.org/claude-code-marketplace.json",
  "name": "coder-eval",
  "owner": {
    "name": "UiPath",
    "email": "[email protected]",
    "url": "https://github.com/UiPath/coder_eval"
  },
  "description": "Test whether your Claude Code skills actually trigger, and benchmark AI coding agents against your own tasks.",
  "plugins": [
    {
      "name": "coder-eval",
      "displayName": "Coder Eval",
      "source": "./plugins/coder-eval",
      "description": "Test whether your Claude Code skills actually trigger, and benchmark any coding agent — author, run, and analyze the eval suite that proves it, locally or as a CI gate.",
      "author": { "name": "UiPath", "email": "[email protected]", "url": "https://github.com/UiPath/coder_eval" },
      "homepage": "https://coder-eval.com",
      "repository": "https://github.com/UiPath/coder_eval",
      "license": "Apache-2.0",
      "category": "testing",
      "keywords": [
        "claude-code-skills",
        "skill-testing",
        "skill-activation",
        "evaluation",
        "benchmark",
        "agent-testing",
        "github-actions",
        "sandbox",
        "llm-judge",
        "ci"
      ]
    }
  ]
}
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 · 36 lines scan A 960923d3682f

Subscribe to this mod's changes

coder-eval is a plugin published in the GitHub repository UiPath/coder_eval (119 stars, last pushed 3d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.