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dotfiles: Skill for Claude Code

.agents/skills/fish-shell-config/SKILL.md

fish-shell-config is a skill for Claude Code, Codex from wcygan/dotfiles. It costs 73 tokens per session (3,266 once invoked), scanned B, original, no licence file.

A set of instructions for configuring the Fish command-line shell, including its startup files, functions, shortcuts, prompts, environment variables, and scripts.

In plain words
What is it for?
Use it to set up Fish, create aliases or abbreviations, write Fish functions and scripts, configure prompts, or migrate from Bash.
Why use it?
It helps make Fish changes correctly and troubleshoot shell behavior without mixing up its configuration with Bash syntax.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is wcygan/dotfiles's own configuration. It tells Claude Code and Codex how to work on dotfiles 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 dotfiles configures →

not rated 195repo +1 4d ago B scan 73 tokens no licence
View source ↗ wcygan/dotfiles wcygan.github.io
Reuse

Borrowing it

Nothing to install: this file belongs to wcygan/dotfiles. 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/wcygan/dotfiles/main/.agents/skills/fish-shell-config/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/wcygan/dotfiles

Made for: Claude Code, Codex.

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 fish-shell-config

README.md
[![agentmods](https://agentmods.dev/badge/skills/wcygan/dotfiles/fish-shell-config/github.svg)](https://agentmods.dev/skills/wcygan/dotfiles/fish-shell-config)
Your own site
<a href="https://agentmods.dev/skills/wcygan/dotfiles/fish-shell-config"><img src="https://agentmods.dev/badge/skills/wcygan/dotfiles/fish-shell-config/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 fish-shell-config

Your own site · 80×15
<a href="https://agentmods.dev/skills/wcygan/dotfiles/fish-shell-config"><img src="https://agentmods.dev/badge/skills/wcygan/dotfiles/fish-shell-config.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,266 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00073 $0.03266
Opus 5.5 $0.00029 $0.01306
Sonnet 5.5 $0.00015 $0.00653
Haiku 4.5 $0.00007 $0.00327

Measured 2mo ago against content hash 8968ff8e9e96, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

fish-shell-config 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 2mo 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.

Asks the agent to reveal its instructionsmediumSystem prompt leakage

Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.

## Output Instructions
.agents/skills/fish-shell-config/SKILL.md · 501 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

4 files beside SKILL.md 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. 2mo ago First seen · 501 lines · 73 tokens per session scan B 8968ff8e9e96

Subscribe to this mod's changes

fish-shell-config is a skill published in the GitHub repository wcygan/dotfiles (195 stars, last pushed 4d ago), with no licence file. It adds 73 tokens to every session and 3,266 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks the agent to reveal its instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

fish-shell-config compared with skills from other repositories

fish-shell-config next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
fish-shell-configwcygan/dotfilesSkill1954d agononeB73Claude Code, Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143ktodayMITA103Claude Code