Agent skill

Write Script Bash

by windmill-labs in windmill-labs/windmill

“MUST use when writing Bash scripts.”

— description from SKILL.md by windmill-labs
Custom licenceAuto-check passedDevelopment

Install Write Script Bash

skills CLI
$ npx skills add windmill-labs/windmill --skill write-script-bash -a claude-code

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

GitHub CLI
$ gh skill install windmill-labs/windmill write-script-bash --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/windmill-labs/windmill.git skills-src && mkdir -p .claude/skills && cp -r skills-src/system_prompts/auto-generated/skills/write-script-bash .claude/skills/write-script-bash && 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
write-script-bash
GitHub stars
18k
Token cost
~2.1k tokens
SKILL.md length
1,183 words
Files
1
Skills in repo
42
Repo updated
First seen
Licence
Custom licence

At a glance

  • SKILL.md covers CLI Commands, General Principles, Return Values and Preprocessor Scripts, plus 3 more sections
  • Calls git

About this skill

Write Script Bash is a skill in windmill-labs/windmill (18k stars). Its SKILL.md is about 2.1k tokens. Licence: Custom licence.

What it can do on your machine

Read from SKILL.md and the folder at commit eab3dd5. 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:

    • 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

Write Script Bash loads about 2.1k tokens when it runs. Until then it costs about 13 tokens; SKILL.md has 1,183 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~13
When it runs · the whole SKILL.md, loaded when a task matches
~2.1k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,183 words (~2,097 tokens).

name
write-script-bash

Read the full SKILL.md on GitHub

Files

Just SKILL.md in system_prompts/auto-generated/skills/write-script-bash of windmill-labs/windmill.

Open the folder on GitHubat commit eab3dd5

Compare with similar skills

Write Script Bash 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.

Write Script Bash compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Write Script Bash this skillwindmill-labs/windmill18k—~2.1kAutomated safety check: PassCustom licence
Mole Bug Patternstw93/Mole69k—~2kAutomated safety check: PassGPL-3.0
CLI DeveloperJeffallan/claude-skills12k1 repos~1.2kAutomated safety check: PassMIT
JSON Processing with jqcharmbracelet/crush29k—~746Automated safety check: PassCustom licence
Shellm Architecture Referencelaude-institute/headlong1.2k—~2kAutomated safety check: NotesApache-2.0
Cppcrazyguitar/cppcheatsheet290—~1.8kAutomated safety check: PassMIT

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Works with

Categories

Questions about Write Script Bash

How do I install Write Script Bash in Claude Code?

Run `npx skills add windmill-labs/windmill --skill write-script-bash -a claude-code`. Or copy the skill folder (system_prompts/auto-generated/skills/write-script-bash in windmill-labs/windmill) into .claude/skills/write-script-bash in your project. Claude Code loads it when a task matches its description.

How do I install Write Script Bash in Codex?

Run `npx skills add windmill-labs/windmill --skill write-script-bash -a codex`. Or copy the skill folder (system_prompts/auto-generated/skills/write-script-bash in windmill-labs/windmill) into .agents/skills/write-script-bash in your project. Codex loads it when a task matches its description.

Can I use Write Script Bash 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 windmill-labs/windmill --skill write-script-bash -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/write-script-bash, .gemini/skills/write-script-bash, .github/skills/write-script-bash and .opencode/skills/write-script-bash in your project.

What does Write Script Bash need to run?

Going by SKILL.md and its folder, Write Script Bash needs the command-line tools its instructions call (git).

Does Write Script Bash 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 Write Script Bash 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 Write Script Bash use?

Write Script Bash has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Write Script Bash use?

About 2.1k tokens (SKILL.md is roughly 8.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Write Script Bash?

Skills that share tags, products or a category with Write Script Bash: Mole Bug Patterns (tw93/Mole, 69k stars), CLI Developer (Jeffallan/claude-skills, 12k stars), JSON Processing with jq (charmbracelet/crush, 29k stars) and Shellm Architecture Reference (laude-institute/headlong, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Write Script Bash?

windmill-labs (a GitHub organization) maintains it in windmill-labs/windmill, which has 18,117 GitHub stars. The repository holds 42 skills in this directory. The repository was last updated on October 7, 2026.

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