personal-os-setup: Skill for Claude Code

.claude/skills/skill-layout/SKILL.md

skill-layout is a skill for Claude Code from AmineDjeghri/personal-os-setup. It costs 24 tokens per session (384 once invoked), scanned A, original, MIT.

Repository instructions for creating and maintaining coding-agent skills. They explain which file is the source of truth, how other agent directories link to it, and how to check those links.

In plain words
What is it for?
Use it when adding, editing, linking, or validating a skill in this codebase.
Why use it?
They prevent edits in the wrong location and keep the same skill available to the different coding agents used by the repository.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; mentions Claude Code; mentions Codex.

This is AmineDjeghri/personal-os-setup's own configuration. It tells Claude Code how to work on personal-os-setup itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything personal-os-setup configures →

Reuse

Borrowing it

Nothing to install: this file belongs to AmineDjeghri/personal-os-setup. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/AmineDjeghri/personal-os-setup/main/.claude/skills/skill-layout/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/AmineDjeghri/personal-os-setup

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 skill-layout

README.md
[![agentmods](https://agentmods.dev/badge/skills/aminedjeghri/personal-os-setup/skill-layout/github.svg)](https://agentmods.dev/skills/aminedjeghri/personal-os-setup/skill-layout)
Your own site
<a href="https://agentmods.dev/skills/aminedjeghri/personal-os-setup/skill-layout"><img src="https://agentmods.dev/badge/skills/aminedjeghri/personal-os-setup/skill-layout/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 skill-layout

Your own site · 80×15
<a href="https://agentmods.dev/skills/aminedjeghri/personal-os-setup/skill-layout"><img src="https://agentmods.dev/badge/skills/aminedjeghri/personal-os-setup/skill-layout.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 384 The whole file, excluding the scripts and references it only reads on demand.
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.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00024 $0.00384
Opus 5.5 $0.00010 $0.00154
Sonnet 5.5 $0.00005 $0.00077
Haiku 4.5 $0.00002 $0.00038

Measured 6d ago against content hash b43553bb97d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skill-layout 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 6d 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.

.claude/skills/skill-layout/SKILL.md · 29 lines

What it actually says

Skill layout in this repo

  • Canonical skills: .claude/skills/<name>/SKILL.md — edit here (Claude Code reads this natively)
  • Cross-agent view: .agents/skills/<name> are git symlinks → ../../.claude/skills/<name> (Hermes, Codex, OpenCode and the skills CLI read .agents/skills)
  • Add a skill: create .claude/skills/<name>/SKILL.md, then run make skills-link
  • Verify: make skills-check
  • Never edit through a symlink — always edit the canonical file
  • Windows note: git symlinks need core.symlinks=true on native Windows checkouts

Every skill's frontmatter records its origin in metadata.hermes.origin (agent | repo:<name> | vendored + source: | hub), plus exposure: private when it must never be published; bundled addon-shipped skills carry no marker. The marker travels with the file — a deploy or copy never adds or strips it. Values and their consequences: agent-skills-architecture.

A repo-bound runbook is a skill, not a docs/ page

Anything under docs/ is crawled into the published site unless excluded, and a doc only helps a human who remembers to go read it — a skill loads itself at task time, for both agents. When a doc starts describing how to do something (a procedure, not reference material for readers), move it into a skill.

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. 6d ago Changed · -20 lines b43553bb97d1
  2. 28d ago Changed · +34 lines 351ee7e168a3
  3. 1mo ago First seen · 15 lines · 24 tokens per session scan A a38d6e774c6a

Subscribe to this mod's changes

skill-layout is a skill published in the GitHub repository AmineDjeghri/personal-os-setup (662 stars, last pushed today), licensed MIT. It adds 24 tokens to every session and 384 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-08.