starlight-neutron

starlight-neutron is a plugin for Claude Code from frankxai/claude-skills-library. Its manifest loads nothing; the 2 skills, 1 hook it bundles cost 166 tokens per session together, scanned A, original, MIT.

An agent-workflow add-on for reducing the amount of command output and context an AI coding agent needs to process. It includes routing guidance, measurement, diagnostic and benchmark commands, and a hook that handles shell output without blocking work.

In plain words
What is it for?
Use it to route agent tasks, measure context or token usage, run diagnostics and benchmarks, and filter shell output while keeping the workflow able to continue if the hook cannot act.
Why use it?
It addresses wasted context and token use when agents receive more terminal output than they need. The included checks help measure and diagnose the effect instead of relying on guesswork.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to route agent tasks, measure context or token usage, run diagnostics and benchmarks, and filter shell output while keeping the workflow able to continue if the hook cannot act.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add frankxai/claude-skills-library
/plugin install starlight-neutron
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/frankxai/claude-skills-library

Made for: Claude Code.

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 starlight-neutron

README.md
[![agentmods](https://agentmods.dev/badge/plugins/frankxai/claude-skills-library/starlight-neutron/github.svg)](https://agentmods.dev/plugins/frankxai/claude-skills-library/starlight-neutron)
Your own site
<a href="https://agentmods.dev/plugins/frankxai/claude-skills-library/starlight-neutron"><img src="https://agentmods.dev/badge/plugins/frankxai/claude-skills-library/starlight-neutron/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for starlight-neutron

Your own site · 80×15
<a href="https://agentmods.dev/plugins/frankxai/claude-skills-library/starlight-neutron"><img src="https://agentmods.dev/badge/plugins/frankxai/claude-skills-library/starlight-neutron.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills, 1 hook cost 166 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

starlight-neutron 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.

packs/starlight-neutron/.claude-plugin/plugin.json · 10 lines

What it actually says

{
  "name": "starlight-neutron",
  "version": "0.2.0",
  "description": "Spend fewer tokens without lowering the ceiling: a router skill, a measurement protocol, a doctor/bench CLI and a fail-open RTK hook for shell output.",
  "author": { "name": "FrankX", "url": "https://github.com/frankxai" },
  "homepage": "https://github.com/frankxai/claude-skills-library/tree/main/packs/starlight-neutron",
  "license": "MIT",
  "keywords": ["tokens", "cost", "context", "rtk", "headroom", "orchestration"]
}
Contents

What it installs

The manifest is a name and a version. 2 skills, 1 hook travel with it, and installing the plugin installs all of them — 166 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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 · 10 lines scan A 413c1686315c

Subscribe to this mod's changes

starlight-neutron is a plugin published in the GitHub repository frankxai/claude-skills-library (47 stars, last pushed yesterday), licensed MIT. 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 2026-10-15.

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