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Fish Functions

Category: Engineering  ·  Sub-category: code-quality  ·  Last updated:
Write Fish shell functions in idiomatic fish syntax with delightful UX. Use when (1) Creating new Fish functions, (2) Refactoring or improving existing functions, (3) Adding flags, help text, or error handling, (4) Working with any `*.fish` files, (5) Converting bash/zsh scripts to Fish, (6) Debugging Fish syntax issues
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About this skill (catalog notes)

Fish Functions includes worked examples; pricing or quota commentary; 24 code blocks for direct copy-paste. At roughly 2,648 words the SKILL.md is on the longer end of the catalog distribution.

Original author
gwenwindflower
Indexed lastmod
Catalog position
Engineering · code-quality
Indexed related skills
10

How Fish Functions fits the catalog

Fish Functions sits in the Engineering category under the code-quality sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Create and enhance Fish shell functions with excellent developer experience, colorful output, and robust error handling.

What this skill does

Fish Functions is a community-contributed Claude Code skill in the code-quality sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/fish-functions/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when (1) Creating new Fish functions, (2) Refactoring or improving existing functions, (3) Adding flags, help text, or error handling, (4) Working with any `*.

Who uses this skill

The Fish Functions Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 115,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/fish-functions
curl -L https://claudskills.com/skills/fish-functions/SKILL.md \
  -o ~/.claude/skills/fish-functions/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/fish-functions/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/fish-functions/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\fish-functions\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

Frequently asked questions

How do I install the Fish Functions Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/fish-functions/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Fish Functions skill do?
Write Fish shell functions in idiomatic fish syntax with delightful UX. Use when (1) Creating new Fish functions, (2) Refactoring or improving existing functions, (3) Adding flags, help text, or error handling, (4) Working with any `*.fish` files, (5) Converting bash/zsh scripts to Fish, (6) Debugging Fish syntax issues
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Fish Functions skill?
Use Fish Functions when your Claude Code task falls under the Engineering category — specifically in the code quality area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Fish Functions" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Fish Functions skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Fish Functions is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
gwenwindflower. (2026). Fish Functions [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/fish-functions/
BibTeX
@misc{fish-functions-2026,
  author    = {gwenwindflower},
  title     = {Fish Functions [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/fish-functions/}
}

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Security scan

Grade A · scanned 2026-06-13 — free static scan against the OWASP Agentic Skills Top 10.

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Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Engineering skills → Top 100 skills
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