paperthin

paperthin is a plugin for Claude Code from LilMGenius/paperthin. Its manifest loads nothing; the 28 skills it bundles cost 2,036 tokens per session together, scanned A, original, MIT.

A collection of small working habits for coding agents, covering planning, checking, simplifying, fact-checking, and Git work. It is designed to make these habits part of an agent’s normal workflow.

In plain words
What is it for?
It helps agents plan tasks, review files and assumptions, reduce unnecessary code, maintain shared sources of truth, and manage Git commits, merges, and releases.
Why use it?
It reduces the need to repeatedly remind an agent to inspect its work, clarify goals, keep changes focused, and handle releases carefully.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit It helps agents plan tasks, review files and assumptions, reduce unnecessary code, maintain shared sources of truth, and manage Git commits, merges, and releases.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add LilMGenius/paperthin
/plugin install paperthin
About the project

Paperthin is a collection of low-level design patterns that coding agents can apply as repeatable checks and actions during software work. It is for people using agents such as Claude Code, Codex, Cursor, or other supported tools, and its catalogue entries package the patterns as skills, an instruction, and a plugin.

LilMGenius/paperthin · 1,136 stars · on GitHub · paperthin.ai

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/LilMGenius/paperthin

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 paperthin

README.md
[![agentmods](https://agentmods.dev/badge/plugins/lilmgenius/paperthin/paperthin/github.svg)](https://agentmods.dev/plugins/lilmgenius/paperthin/paperthin)
Your own site
<a href="https://agentmods.dev/plugins/lilmgenius/paperthin/paperthin"><img src="https://agentmods.dev/badge/plugins/lilmgenius/paperthin/paperthin/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 paperthin

Your own site · 80×15
<a href="https://agentmods.dev/plugins/lilmgenius/paperthin/paperthin"><img src="https://agentmods.dev/badge/plugins/lilmgenius/paperthin/paperthin.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 28 skills cost 2,036 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

paperthin 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 1mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.claude-plugin/plugin.json · 35 lines

What it actually says

{
  "name": "paperthin",
  "description": "Low-level agentic design patterns. Turning old engineering wisdom into reflexes your agent reaches for on its own—on any agent.",
  "skills": [
    "./skills/depth/re0",
    "./skills/depth/readchk",
    "./skills/depth/aim",
    "./skills/depth/modelchk",
    "./skills/depth/hate",
    "./skills/depth/macrothink",
    "./skills/depth/feynman",
    "./skills/depth/autobahn",
    "./skills/depth/reorder",
    "./skills/depth/detool",
    "./skills/depth/dedash",
    "./skills/depth/debloat",
    "./skills/depth/shower",
    "./skills/depth/factchk",
    "./skills/depth/mandela",
    "./skills/depth/sip",
    "./skills/depth/re0-git",
    "./skills/depth/re0-release",
    "./skills/depth/re0-merge",
    "./skills/breadth/ssotize",
    "./skills/breadth/re0-upgrade",
    "./skills/coil/re0-plan",
    "./skills/coil/re0-loop",
    "./skills/coil/re0-memo",
    "./skills/coil/re0-work",
    "./skills/coil/catchup",
    "./skills/coil/nba",
    "./skills/mesh/prism"
  ]
}
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. 1mo ago First seen · 35 lines scan A 7ac2df50d744

Subscribe to this mod's changes

paperthin is a plugin published in the GitHub repository LilMGenius/paperthin (1,136 stars, last pushed 4d ago), 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 2026-08-30.

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