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.
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.
npx skills add LilMGenius/paperthin --skill re0-upgradegit clone --depth 1 https://github.com/LilMGenius/paperthinWrote 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.
[](https://agentmods.dev/skills/lilmgenius/paperthin/re0-upgrade)<a href="https://agentmods.dev/skills/lilmgenius/paperthin/re0-upgrade"><img src="https://agentmods.dev/badge/skills/lilmgenius/paperthin/re0-upgrade/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.
<a href="https://agentmods.dev/skills/lilmgenius/paperthin/re0-upgrade"><img src="https://agentmods.dev/badge/skills/lilmgenius/paperthin/re0-upgrade.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk fail
- NVIDIA SkillSpector warn
SkillSpector: 13 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Agent Snooping · line 66 Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
- high Agent Snooping · line 66 Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
- medium MCP Rug Pull · line 31 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 38 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 39 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 42 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 43 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 58 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 59 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 60 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 61 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 62 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 78 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00047 | $0.02578 |
| Opus 5 | $0.00023 | $0.01289 |
| Sonnet 5 | $0.00009 | $0.00516 |
| Haiku 4.5 | $0.00005 | $0.00258 |
Grade B, and why
re0-upgrade scanned grade B with 1 finding 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
- **Claude Code** (`~/.claude/settings.json`) and **Codex** (`~/.codex/config.toml`): add a `SessionStart` command for `~/.re0/session-check.cjs` only if none already runs `session-check.cjs` by **any** path. Keep pre-re How it starts
The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Converge an install on the full current paperthin catalog in one step: retire renamed skills, add every skill not yet installed, refresh the rest, behind one confirmation.
Goal
Upgrade the chosen scope to the full current catalog, not just the originally installed subset. Show the reconciliation plan and name every new-to-user skill before confirmation; users who prefer a narrower install can decline.
Deprecations
The rename SSOT, in release order. Append future renames here; resolve chains to their final current names. The ssot-check row is user-confirmed pre-v0.2.0 history, unverifiable in git after a force-push; do not invent its date or tag.
| Deprecated | Renamed to | Since |
|---|---|---|
ssot-check |
ssotchk |
pre-v0.2.0 history (force-pushed; user-confirmed) |
tasting |
sip |
0.6.0 |
redteam |
hate |
0.7.0 |
scratch |
re0-work |
0.8.2 |
retro |
re0-memo |
0.11.0 |
flywheel |
re0-loop |
0.11.0 |
ssotchk |
ssotize |
0.11.0 |
ppt-upgrade |
re0-upgrade |
0.11.0 |
ppt-release |
re0-release |
0.11.0 |
Current catalog
Install every skill below in the chosen scope, except those declined at confirmation. Use this roster to distinguish current from unknown names in npx skills list and installed directories.
re0, readchk, aim, modelchk, hate, macrothink, feynman, autobahn, reorder, detool, dedash, debloat, shower, factchk, mandela, sip, re0-git, re0-release, re0-merge, ssotize, re0-upgrade, re0-plan, re0-loop, re0-memo, re0-work, catchup, nba, prism
Workflow
- Choose one install scope for the whole run; ask if unspecified. A wrong scope reads the wrong install location.
- Global:
npx skills list --global, inspect~/.agents/skills/<skill>/SKILL.md, and pass--globalto everyremove,add, andupdate. - Project:
npx skills listfrom that project, inspect its installed skill directory if present, and omit--global. - Exact agent: use explicit slugs such as
--agent claude-code, never--agent '*', including removals. Without agent scoping, use global or project scope.
- Global:
- Check for a shadow install before classifying. If paperthin is loaded but the chosen scope's list reports zero paperthin skills, do not conclude the whole catalog is missing. Check for any Current-catalog directory in that scope's managed footprint (
~/.agents/skills/globally, e.g.~/.agents/skills/re0).- Directory present: re-check scope and retry the list (
npx skills list --globalglobally). If it still contradicts the footprint, report the CLI failure and stop; a flaky read is not an empty install. - Directory absent, paperthin loaded: report a shadow install, commonly a clone loaded as a Claude Code plugin (
/paperthin:<skill>). The CLI cannot see, update, or remove it. Offer a managed reinstall vianpx skills addin the chosen scope (recommended for future upgrades and discovery notices), or keep the clone untouched and CLI-invisible, with each upgrade re-flagging it. Await the user's choice; never delete the clone or install a second copy on your own.
- Directory present: re-check scope and retry the list (
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.
- yesterday Changed · -7 lines 3edfde89cb6f
- 9d ago First seen · 104 lines · 47 tokens per session scan B d7add93a668f
re0-upgrade is a skill published in the GitHub repository LilMGenius/paperthin (1,086 stars, last pushed 2d ago), licensed MIT. It adds 47 tokens to every session and 2,578 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
mm-resume
A workflow for restoring project context after starting a new Claude Code session or clearing the conversation. It reads project notes, recent session information, version-control status, and available planning files.
mm-setup
A setup guide that personalizes a shared mm system for one user. It asks for details such as your name, work area, tools, language, and Obsidian vault location, then saves them in private configuration files.
mm
A dispatcher that provides short /mm commands for project setup, session recovery, project overviews, and workflow checks. It maps these aliases to longer system commands.
founder-productivity
Time audits, energy management, deep work scheduling, and priority frameworks for founders who wear too many hats.
automation-workflows
Identify automation opportunities and design workflows for Zapier, Make, n8n, or custom scripts.
delegation-framework
Task audit, delegation matrices, and handoff documentation for founders who need to free up their time.