Agent skill

Modern CLI Tools

by shepherdjerred in shepherdjerred/monorepo

Safe, current usage of ripgrep, fd, bat, eza, fzf, zoxide, sd, jq, yq, hyperfine, delta, bottom, dust, duf, procs, btop, and tldr.

GPL-3.0Auto-check passedWriting & Content

Install Modern CLI Tools

skills CLI
$ npx skills add shepherdjerred/monorepo --skill modern-cli-tools -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install shepherdjerred/monorepo modern-cli-tools --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/shepherdjerred/monorepo.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/dotfiles/dot_agents/skills/modern-cli-tools .claude/skills/modern-cli-tools && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
modern-cli-tools
GitHub stars
112
Token cost
~1.9k tokens
SKILL.md length
872 words
Files
5 (incl. references)
Skills in repo
63
Repo updated
First seen
Licence
GPL-3.0

At a glance

Safe, current usage of ripgrep, fd, bat, eza, fzf, zoxide, sd, jq, yq, hyperfine, delta, bottom, dust, duf, procs, btop, and tldr.

  • Invoking modern Unix CLI tools
  • SKILL.md covers Current baseline, Filename safety, ripgrep and fd, plus 10 more sections
  • Calls rg, jq and yq
  • Especially instead of fragile shell pipelines

What it does

Modern CLI Tools is an agent skill from shepherdjerred/monorepo. Safe, current usage of ripgrep, fd, bat, eza, fzf, zoxide, sd, jq, yq, hyperfine, delta, bottom, dust, duf, procs, btop, and tldr. Use when selecting or invoking modern Unix CLI tools, especially instead of fragile shell pipelines.

Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `references/data-benchmarks-and-git.md`, `references/interactive-and-system-tools.md` and `references/releases.md`).

It sits in Writing & Content, covering Summarization. It works with Git. The repository describes itself as: Monorepo for all of my projects. The licence is GPL-3.0.

When your agent uses it

  • Invoking modern Unix CLI tools
  • Especially instead of fragile shell pipelines

Example prompts

  • “/modern-cli-tools”

Requirements

  • Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit 46ddf2f. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • rg
    • jq
    • yq
    • sh
    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Modern CLI Tools loads about 1.9k tokens when it runs, and up to ~3.5k if it reads all its reference files. Until then it costs about 62 tokens; SKILL.md has 872 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~62
When it runs · the whole SKILL.md, loaded when a task matches
~1.9k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from shepherdjerred/monorepo at commit 46ddf2f, republished under its GPL-3.0 licence (© shepherdjerred). 872 words, ~1,926 tokens.

Download SKILL.mdSave it as .claude/skills/modern-cli-tools/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.
name
modern-cli-tools
description
Safe, current usage of ripgrep, fd, bat, eza, fzf, zoxide, sd, jq, yq, hyperfine, delta, bottom, dust, duf, procs, btop, and tldr. Use when selecting or invoking modern Unix CLI tools, especially instead of fragile shell pipelines.

Modern CLI Tools

Prefer a tool because its semantics fit the task, not because it is newer. Preserve filenames as data, use machine-readable output, validate empty selections, and never turn filenames into shell source.

Current baseline

Verified 2026-08-03:

ToolCurrent releasePrimary use
ripgrep15.2.0Recursive text/regex search
fd10.4.2Filesystem path search
bat0.26.1Syntax-aware file viewing
eza0.23.5Interactive directory listing
fzf0.74.2Interactive fuzzy selection
zoxide0.10.0Frecency directory navigation
sd1.1.0Search/replace with regex or fixed strings
jq1.8.2JSON filtering/transformation
yq4.53.3YAML and structured-data transformation
hyperfine1.20.0Reproducible command benchmarking
delta0.19.2Git diff/pager rendering
bottom0.14.7Terminal process/system monitor (btm)

Read references/releases.md for the 34-page research ledger. Read references/search-files-and-text.md for ripgrep, fd, eza, bat, and sd semantics. Read references/data-benchmarks-and-git.md for jq, yq, hyperfine, and delta. Read references/interactive-and-system-tools.md for fzf, zoxide, bottom/btop, dust, duf, procs, and tldr.

Filename safety

Filenames can contain spaces, newlines, leading dashes, quotes, and shell metacharacters. Prefer:

  • native fd --exec / --exec-batch,
  • argv arrays in the current language/shell,
  • NUL-producing and NUL-consuming options only when every pipeline stage supports them,
  • -- before path operands,
  • machine-readable output instead of parsing decorated tables.

Do not interpolate {} into sh -c. Do not pipe newline-delimited paths into xargs rm, command substitution, or a shell loop that reparses text.

ripgrep

bash
rg 'pattern' src
rg --hidden --glob '!.git/**' 'pattern'
rg --count-matches 'pattern'
rg --multiline --multiline-dotall 'start.*end'
  • rg -c counts matching lines; --count-matches counts occurrences.
  • -U / --multiline permits matches across lines, but dot still excludes newline unless dotall is enabled.
  • -u disables ignore rules but still omits hidden files; -uu includes hidden, and -uuu additionally searches binary data.
  • --no-ignore --hidden searches the working tree, not Git history. Use Git history commands for commit history.

fd

bash
fd --absolute-path 'pattern' root
fd --full-path 'src/.+\.ts$'
fd --changed-within 2d
fd --type d --type empty --exec rmdir -- {}
  • -p means match against the full path, not print an absolute path; use -a / --absolute-path for output.
  • -S +1m selects files at least one decimal megabyte in size, including exactly 1,000,000 bytes; use +1mi for one MiB (1,048,576 bytes) — m/mi are separate decimal/binary units, not aliases.
  • -c is color control; use --changed-within and --changed-before for time filters.
  • Native exec preserves argv and avoids shell injection.

eza and bat

Use eza for interactive display, not as a parser input. -h enables the column header row. --color-scale color-scales age/size fields; it is not a custom-theme loader. Use documented theme or EZA_COLORS configuration.

Use bat for human viewing. In pipelines or scripts, disable decoration/color or use the underlying file directly so control sequences do not become data.

sd

Current sd processes line by line by default. Use -A / --across for cross-line replacements, -F for fixed strings, -p for preview, and -- before operands that can begin with -.

Review replacements before in-place mutation. Regex replacement syntax is not identical to every sed dialect.

jq

bash
jq -e -r '.items[]?.name' input.json
jq --arg name "$NAME" '.name = $name' input.json
jq --argjson config "$CONFIG_JSON" '.config = $config' input.json
  • -r emits strings without JSON quoting.
  • -e makes false/null/no-result affect exit status.
  • --arg passes a string; --argjson parses JSON.
  • Shell-quote jq programs so the shell does not consume $, brackets, or quotes.
  • Slurp loads all inputs; streaming changes the data model. Consider memory before using either on large input.

yq

This skill refers to Mike Farah's Go yq, not the separate Python wrapper with the same name.

bash
yq eval '.services.api.image' compose.yaml
yq eval --inplace '.version = "2"' config.yaml

Treat in-place editing as a local mutation and inspect the diff. Configure input/output format when extension detection is ambiguous. Preserve null and missing-value semantics deliberately; YAML round trips can change representation.

Show full SKILL.md (336 more words)Show less

fzf

Fuzzy selection can return no value and can return text beginning with -. Capture the result without word splitting, validate cancellation/empty output, then pass it as one argument with -- where supported.

Do not use vim $(fzf), cd $(...), or git checkout $(...). Prefer shell arrays/read primitives or native NUL protocols.

hyperfine

Replace invented performance numbers with a reproducible local benchmark:

bash
hyperfine --warmup 3 --runs 20 \
  --export-json benchmark.json \
  'rg pattern corpus' \
  'grep -R pattern corpus'

Record tool versions, corpus, hardware, filesystem, cache state, warmup, and environment. Hyperfine commands run through a shell; do not interpolate untrusted input. A local result is not a universal speed or memory claim.

Git delta

Configure delta as a Git pager through reviewed Git config. Side-by-side, navigation, line numbers, syntax themes, and pager environment all affect output. Do not feed decorated pager output into automation.

System tools

  • btm is bottom; btop is a different monitor.
  • dust visualizes disk usage; duf summarizes filesystem space.
  • procs presents process data; do not parse its human table for process control.
  • tldr clients implement a specification and vary by language/version; verify the installed client.

Use system-native structured interfaces for destructive process/storage operations. A fuzzy human selection is not authorization to kill or delete without exact target resolution.

Interactive aliases

Do not transparently alias cat, ls, find, or grep in automation: replacements are not CLI-compatible. Distinct interactive abbreviations/functions are fine when the user wants them.

Install through a trusted package manager or reviewed release artifact. Do not pipe a mutable installer into a shell. If Cargo installation is intentionally used, select the exact crate and use its locked package graph.

Review checklist

  • Verify the installed tool and release before using recent flags.
  • Preserve filenames with native argv/NUL mechanisms and --.
  • Distinguish ripgrep matching lines, occurrences, multiline, hidden, ignored, and binary semantics.
  • Use fd absolute-path and time flags correctly.
  • Keep human decoration out of machine pipelines.
  • Use jq -e, typed args, and deliberate raw/slurp/stream behavior.
  • Confirm the intended yq implementation before scripting.
  • Validate fzf cancellation and exact selection.
  • Benchmark a fixed corpus instead of repeating universal speed claims.
  • Keep destructive process/file actions outside brittle text pipelines.

© shepherdjerred, GPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 4 other files (references) in packages/dotfiles/dot_agents/skills/modern-cli-tools of shepherdjerred/monorepo.

  • SKILL.md
  • references/data-benchmarks-and-git.md
  • references/interactive-and-system-tools.md
  • references/releases.md
  • references/search-files-and-text.md

Open the folder on GitHubat commit 46ddf2f

Compare with similar skills

Modern CLI Tools next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

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Modern CLI Tools this skillshepherdjerred/monorepo112—~1.9kAutomated safety check: PassGPL-3.0
Weekly Project Digeststhedotmack/claude-mem97k—~3.5kAutomated safety check: PassApache-2.0
News Aggregator Skillcclank/news-aggregator-skill1.3k—~2.1kAutomated safety check: PassNone
Os Big Picturekharmanskyi/open-steps1.2k—~1.9kAutomated safety check: PassMIT
Vss Search ArchiveNVIDIA-AI-Blueprints/video-search-and-summarization1.9k—~3.6kAutomated safety check: PassApache-2.0
AI Daily Newsgeekjourneyx/ai-daily-skill235—~2.3kAutomated safety check: PassNone

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Works with

Questions about Modern CLI Tools

What does Modern CLI Tools do?

Safe, current usage of ripgrep, fd, bat, eza, fzf, zoxide, sd, jq, yq, hyperfine, delta, bottom, dust, duf, procs, btop, and tldr. Modern CLI Tools is an agent skill from shepherdjerred/monorepo. Safe, current usage of ripgrep, fd, bat, eza, fzf, zoxide, sd, jq, yq, hyperfine, delta, bottom, dust, duf, procs, btop, and tldr.

When should I use Modern CLI Tools?

Modern CLI Tools fits situations like: invoking modern Unix CLI tools; especially instead of fragile shell pipelines.

How do I install Modern CLI Tools in Claude Code?

Run `npx skills add shepherdjerred/monorepo --skill modern-cli-tools -a claude-code`. Or copy the skill folder (packages/dotfiles/dot_agents/skills/modern-cli-tools in shepherdjerred/monorepo) into .claude/skills/modern-cli-tools in your project. Claude Code loads it when a task matches its description.

How do I install Modern CLI Tools in Codex?

Run `npx skills add shepherdjerred/monorepo --skill modern-cli-tools -a codex`. Or copy the skill folder (packages/dotfiles/dot_agents/skills/modern-cli-tools in shepherdjerred/monorepo) into .agents/skills/modern-cli-tools in your project. Codex loads it when a task matches its description.

Can I use Modern CLI Tools in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add shepherdjerred/monorepo --skill modern-cli-tools -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/modern-cli-tools, .gemini/skills/modern-cli-tools, .github/skills/modern-cli-tools and .opencode/skills/modern-cli-tools in your project.

What does Modern CLI Tools need to run?

Going by SKILL.md and its folder, Modern CLI Tools needs the command-line tools its instructions call (rg, jq, yq, sh and git). Our summary lists: Python 3.

Does Modern CLI Tools access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Modern CLI Tools safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Modern CLI Tools use?

Modern CLI Tools is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Modern CLI Tools use?

About 1.9k tokens (SKILL.md is roughly 7.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.6k tokens, read only when the agent opens those files.

What are the alternatives to Modern CLI Tools?

Skills that share tags, products or a category with Modern CLI Tools: Weekly Project Digests (thedotmack/claude-mem, 97k stars), News Aggregator Skill (cclank/news-aggregator-skill, 1.3k stars), Os Big Picture (kharmanskyi/open-steps, 1.2k stars) and Vss Search Archive (NVIDIA-AI-Blueprints/video-search-and-summarization, 1.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Modern CLI Tools?

shepherdjerred (a GitHub user) maintains it in shepherdjerred/monorepo, which has 112 GitHub stars. The repository holds 63 skills in this directory. The repository was last updated on October 7, 2026.

Source: shepherdjerred/monorepo on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.