fish

Fish friendly interactive shell. Use for terminal shell.

7 stars

byG1Joshi

View on GitHub Installation ↓

Best use case

fish is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

Fish friendly interactive shell. Use for terminal shell.

Teams using fish should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

You only need a quick one-off answer and do not need a reusable workflow.
You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/fish/SKILL.md --create-dirs "https://raw.githubusercontent.com/G1Joshi/Agent-Skills/main/skills/tools/fish/SKILL.md"

Manual Installation

Download SKILL.md from GitHub
Place it in .claude/skills/fish/SKILL.md inside your project
Restart your AI agent — it will auto-discover the skill

How fish Compares

Feature / Agent	fish	Standard Approach
Platform Support	Not specified	Limited / Varies
Context Awareness	High	Baseline
Installation Complexity	Unknown	N/A

Frequently Asked Questions

What does this skill do?

Fish friendly interactive shell. Use for terminal shell.

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

SKILL.md Source

# Fish (Friendly Interactive Shell)

Fish v4.0 (2025) is rewritten in **Rust**. It is famous for "It just works" – 90% of what you need (autosuggestions, coloring) is enabled by default.

## When to Use

- **Interactive Use**: It is arguably the best shell for _typing_ commands manually.
- **Discoverability**: Man page completions are generated automatically.

## Core Concepts

### Autosuggestions

Fish suggests commands as you type based on history and completions. Right arrow accepts.

### Universal Variables

`set -U my_var value` sets a variable across _all_ current and future shell instances instantly.

### Web Config

`fish_config` launches a browser UI to change colors and prompt.

## Best Practices (2025)

**Do**:

- **Use it as Interactive Shell**: Set it as your login shell.
- **Don't write scripts in Fish**: Write scripts in `bash` or `sh` for portability. Run them _from_ Fish.
- **Use "Fisher"**: The plugin manager for themes.

**Don't**:

- **Don't copy-paste Bash**: Fish syntax is different (`env var=val` -> `set -x var val`).

## References

- [Fish Shell Documentation](https://fishshell.com/docs/current/index.html)