agentmods.dev

rudder

A plugin marketplace entry for Rudder, a tool that generates focused unit tests from the intent of a coding session and the changes in a worktree.

In plain words
What is it for?
Use it for intent-based unit-test generation, especially when you want tests for recent worktree changes or improved coverage.
Why use it?
It helps turn the reason for a code change and the resulting diff into relevant unit tests using the existing coding agent.

Plugin for Claude Code

22 12d ago A scan tokens not measured original Apache-2.0
View the source file RudderCode/Rudder
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 plugins/ruddercode/rudder/marketplace
Claude Code
/plugin marketplace add RudderCode/Rudder
Clone the repo
git clone --depth 1 https://github.com/RudderCode/Rudder

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

rudder 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 · 43 lines

What it actually says

{
  "name": "rudder",
  "owner": {
    "name": "RudderCode",
    "email": "[email protected]"
  },
  "metadata": {
    "description": "Intent-driven unit-test generation for coding agents."
  },
  "plugins": [
    {
      "name": "rudder",
      "source": {
        "source": "npm",
        "package": "@ruddercode/rudder-plugin",
        "version": "0.2.0",
        "registry": "https://registry.npmjs.org"
      },
      "description": "Generate focused unit tests from coding-session intent and worktree changes using your existing coding agent.",
      "version": "0.2.0",
      "author": {
        "name": "RudderCode",
        "email": "[email protected]"
      },
      "homepage": "https://github.com/RudderCode/Rudder/blob/main/docs/install.md",
      "repository": "https://github.com/RudderCode/Rudder",
      "license": "Apache-2.0",
      "keywords": [
        "coding-agents",
        "unit-tests",
        "test-generation",
        "prompt-intent",
        "coverage"
      ],
      "category": "Productivity",
      "tags": [
        "testing",
        "developer-tools"
      ]
    }
  ]
}
Files

What ships with it

1 file beside marketplace.json 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 · 43 lines scan A dc63c0c556eb

Subscribe to this mod's changes

rudder is a plugin published in the GitHub repository RudderCode/Rudder (22 stars, last pushed 12d 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.

Git and workflowTestingagentic-aiai-agentsclaude-codeclicodexcoding-agents
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