Code Search & File Tree Browsing

SkillSearch

Fast, efficient utilities for searching code and browsing file hierarchies.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Code Search & File Tree Browsing skill

About this capability

AI agents and Nix: parametrable skills/instructions and tools, packaged together in a reproducible and modular fashion

What this skill tells your AI

The instructions your AI receives, as published by ypares/rigup.nix in riglets/code-search/SKILL.md and read by ahel’s review.

Fast, efficient utilities for searching code and browsing file hierarchies.

Tools Overview

ripgrep (rg)

Ultra-fast grep alternative that respects .gitignore by default.

Common usage:

rg <pattern> [<path>]              # Search for pattern in files
rg -t <type> <pattern>             # Search files of specific type
rg --no-ignore <pattern>           # Search ignoring .gitignore
rg -w <pattern>                    # Match whole word
rg -C <num> <pattern>              # Show context lines

fd

Faster, simpler alternative to find with better defaults and colorized output.

Common usage:

fd <pattern> [<path>]              # Find files matching pattern
fd -e <ext> <pattern>              # Find by extension
fd -t f <pattern>                  # Find files only
fd -t d <pattern>                  # Find directories only
fd --follow <pattern>              # Follow symlinks

bat

Syntax-highlighting cat with git integration and line numbers.

Common usage:

bat <file>                         # View file with syntax highlighting
bat --line-range <start:end> <file>  # Show specific line range
rg <pattern> | bat --file-name <path>  # Syntax highlight search results

fzf

Fuzzy filtering and pattern matching for command pipelines.

Common usage:

<command> | fzf --filter <pattern>  # Filter output by pattern (non-interactive)
echo -e "file1\nfile2\nfile3" | fzf --filter "file"  # Match lines containing "file"
rg <pattern> | fzf --filter <secondary-pattern>  # Further filter search results

tree

Display directory structure in tree format.

Common usage:

tree [<path>]                      # Show tree structure
tree -L <depth> [<path>]           # Limit depth
tree -I '<pattern>'                # Exclude pattern
tree -a                            # Include hidden files

Common Workflows

Filter search results by secondary pattern

rg <primary-pattern> | fzf --filter <secondary-pattern>

Search code and show context

rg -C 3 <pattern>

Search specific file types

rg -t ts <pattern>      # TypeScript files
rg -t py <pattern>      # Python files
rg -t go <pattern>      # Go files

List directory tree

tree -L 3

Signals

GitHub stars
91
Forks
4
Last commit
Sep 2026
Advanced
Catalog kind
skill
Gateway key
code-search-ypares
Source
github.com/ypares/rigup.nix