TS SDK Author
mindfold-ai/Trellis
Design, build, verify, and publish production-grade TypeScript SDKs as npm packages inside a pnpm monorepo.
Guides your agent through writing Windmill scripts in TypeScript on Bun, then previewing, regenerating metadata and deploying them with the wmill CLI.
Install Windmill Bun Script Writer
$ npx skills add windmill-labs/windmill --skill write-script-bun -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install windmill-labs/windmill write-script-bun --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ 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-bun .claude/skills/write-script-bun && rm -rf skills-srcUse ~/.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/
Install the "write-script-bun" agent skill from https://github.com/windmill-labs/windmill/tree/main/system_prompts/auto-generated/skills/write-script-bun into .claude/skills/write-script-bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-script-bun", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/windmill-labs/windmill/tree/main/system_prompts/auto-generated/skills/write-script-bunType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add windmill-labs/windmill --skill write-script-bun -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install windmill-labs/windmill write-script-bun --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/windmill-labs/windmill.git skills-src && mkdir -p .agents/skills && cp -r skills-src/system_prompts/auto-generated/skills/write-script-bun .agents/skills/write-script-bun && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "write-script-bun" agent skill from https://github.com/windmill-labs/windmill/tree/main/system_prompts/auto-generated/skills/write-script-bun into .agents/skills/write-script-bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-script-bun", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add windmill-labs/windmill --skill write-script-bun -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install windmill-labs/windmill write-script-bun --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/windmill-labs/windmill.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/system_prompts/auto-generated/skills/write-script-bun .cursor/skills/write-script-bun && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "write-script-bun" agent skill from https://github.com/windmill-labs/windmill/tree/main/system_prompts/auto-generated/skills/write-script-bun into .cursor/skills/write-script-bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-script-bun", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/windmill-labs/windmill.git --path system_prompts/auto-generated/skills/write-script-bun--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add windmill-labs/windmill --skill write-script-bun -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install windmill-labs/windmill write-script-bun --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/windmill-labs/windmill.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/system_prompts/auto-generated/skills/write-script-bun .gemini/skills/write-script-bun && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "write-script-bun" agent skill from https://github.com/windmill-labs/windmill/tree/main/system_prompts/auto-generated/skills/write-script-bun into .gemini/skills/write-script-bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-script-bun", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install windmill-labs/windmill write-script-bunInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add windmill-labs/windmill --skill write-script-bun -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/windmill-labs/windmill.git skills-src && mkdir -p .github/skills && cp -r skills-src/system_prompts/auto-generated/skills/write-script-bun .github/skills/write-script-bun && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "write-script-bun" agent skill from https://github.com/windmill-labs/windmill/tree/main/system_prompts/auto-generated/skills/write-script-bun into .github/skills/write-script-bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-script-bun", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add windmill-labs/windmill --skill write-script-bun -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install windmill-labs/windmill write-script-bun --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/windmill-labs/windmill.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/system_prompts/auto-generated/skills/write-script-bun .opencode/skills/write-script-bun && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "write-script-bun" agent skill from https://github.com/windmill-labs/windmill/tree/main/system_prompts/auto-generated/skills/write-script-bun into .opencode/skills/write-script-bun/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-script-bun", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
write-script-bun- GitHub stars
- 18k
- Token cost
- ~9.7k tokens
- SKILL.md length
- 4,823 words
- Files
- 1
- Skills in repo
- 42
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Guides your agent through writing Windmill scripts in TypeScript on Bun, then previewing, regenerating metadata and deploying them with the wmill CLI.
- Writing a new TypeScript script for a Windmill workspace
- SKILL.md covers CLI Commands, General Principles, Return Values and Preprocessor Scripts, plus 7 more sections
- Calls git; needs WM_TOKEN
- Testing a local script edit without deploying it
What it does
Bun is treated as the standard TypeScript runtime for Windmill scripts, with Deno kept for scripts that specifically depend on it. The skill tells the agent to place scripts in a folder and, once the code is written, to explain which wmill command fits what you want to do next.
The key rule is choosing by intent. Trying a local edit uses wmill script preview, which executes the file without deploying. The wmill script run command is only for the version already deployed in the workspace, and a deploy through git push or wmill sync push happens only when you ask for one. After an import is added or removed, or the arguments of main change, the agent runs wmill generate-metadata so the .script.yaml schema, the .lock file and wmill-lock.yaml match the code.
When your agent uses it
- Writing a new TypeScript script for a Windmill workspace
- Testing a local script edit without deploying it
- Refreshing the lock file and input schema after changing imports or arguments
Example prompts
- “Write a Windmill script in TypeScript that fetches open invoices and returns the total.”
- “Try out the script I just edited in the workspace folder.”
- “I added an import to the sync script, so make sure the lock and schema files are up to date.”
Requirements
- The wmill CLI
- A Windmill workspace
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
Links to these hosts (documentation or services it may open):
windmill.dev
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
WM_TOKEN
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Windmill Bun Script Writer loads about 9.7k tokens when it runs. Until then it costs about 45 tokens; SKILL.md has 4,823 words of instructions outside code blocks.
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 4,823 words (~9,730 tokens).
- name
- write-script-bun
Files
Just SKILL.md in system_prompts/auto-generated/skills/write-script-bun of windmill-labs/windmill.
Open the folder on GitHubat commit eab3dd5
Compare with similar skills
Windmill Bun Script Writer 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Windmill Bun Script Writer this skillwindmill-labs/windmill | 18k | — | ~9.7k | Automated safety check: Pass | Custom licence | |
| TS SDK Authormindfold-ai/Trellis | 15k | — | ~6.1k | Automated safety check: Pass | MIT | |
| Prepare Rslint npm Releaseweb-infra-dev/rslint | 460 | — | ~1.5k | Automated safety check: Pass | MIT | |
| Pump Build Releasenirholas/pump-fun-sdk | 133 | — | ~620 | Automated safety check: Pass | Custom licence | |
| Releasear-io/ar-io-node | 127 | — | ~4.2k | Automated safety check: Notes | AGPL-3.0 | |
| AWS Cdk Developmentzxkane/aws-skills | 367 | 2 repos | ~2.5k | Automated safety check: Pass | MIT |
Similar skills
Prepare Rslint npm Release
web-infra-dev/rslint
Prepare a stable release PR for the unified rslint npm packages by updating package versions and rule/TypeScript release metadata.
Pump Build Release
nirholas/pump-fun-sdk
Build and release pipeline for the Pump SDK — tsup TypeScript builds, Cargo release profiles, semantic release with commitizen, npm publishing, linting, Makefile targets, Vercel deployment, and MCP…
Release
ar-io/ar-io-node
Drive the AR.IO Node release process end-to-end — preflight checks, prepare commit, finalize with image SHAs, test docker compose profiles, tag & publish, and post-release cleanup.
AWS Cdk Development
zxkane/aws-skills
AWS Cloud Development Kit (CDK) expert for building cloud infrastructure with TypeScript/Python.
Skyvern Browser Automation
Skyvern-AI/skyvern
Automates websites with Skyvern's AI browser agent to fill forms, extract data, download files, log in and run multi-step workflows through SDKs, REST, MCP or a CLI.
More from windmill-labs/windmill
All 42 skills in this repoWindmill Trigger Type Checklist
windmill-labs/windmill
Checklist of every backend, frontend, CLI and capture change needed to add a new TriggerCrud-based trigger type, such as Azure, GCP or Kafka, to Windmill.
Windmill AI Evals
windmill-labs/windmill
Writes and runs black-box benchmark cases for Windmill's flow, app, script, CLI and global AI generation modes, including before-and-after comparisons.
Domain Modeling and Glossary
windmill-labs/windmill
Actively challenges vague or conflicting terminology as you design, and keeps a living domain glossary file up to date in real time.
Local PR Review
windmill-labs/windmill
Runs the same code review locally that GitHub's auto-review actions run on a PR, delegating to a fresh-context subagent so the review isn't biased by the main session's own reasoning.
Draft PR with CI Rounds
windmill-labs/windmill
Opens a draft GitHub pull request with a conventional title and explicit body, then drives CI review rounds before marking it ready.
Windmill Dev Page Preview
windmill-labs/windmill
Opens the Windmill dev page to preview a flow, script or app, choosing between proxy and direct mode and deciding whether the agent or the runtime starts the wmill dev server.
Related
Works with
Categories
Questions about Windmill Bun Script Writer
What does Windmill Bun Script Writer do?
Guides your agent through writing Windmill scripts in TypeScript on Bun, then previewing, regenerating metadata and deploying them with the wmill CLI. Bun is treated as the standard TypeScript runtime for Windmill scripts, with Deno kept for scripts that specifically depend on it. The skill tells the agent to place scripts in a folder and, once the code is written, to explain which wmill command fits what you want to do next.
When should I use Windmill Bun Script Writer?
Windmill Bun Script Writer fits situations like: writing a new TypeScript script for a Windmill workspace; testing a local script edit without deploying it; refreshing the lock file and input schema after changing imports or arguments.
How do I install Windmill Bun Script Writer in Claude Code?
Run `npx skills add windmill-labs/windmill --skill write-script-bun -a claude-code`. Or copy the skill folder (system_prompts/auto-generated/skills/write-script-bun in windmill-labs/windmill) into .claude/skills/write-script-bun in your project. Claude Code loads it when a task matches its description.
How do I install Windmill Bun Script Writer in Codex?
Run `npx skills add windmill-labs/windmill --skill write-script-bun -a codex`. Or copy the skill folder (system_prompts/auto-generated/skills/write-script-bun in windmill-labs/windmill) into .agents/skills/write-script-bun in your project. Codex loads it when a task matches its description.
Can I use Windmill Bun Script Writer 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-bun -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-bun, .gemini/skills/write-script-bun, .github/skills/write-script-bun and .opencode/skills/write-script-bun in your project.
What does Windmill Bun Script Writer need to run?
Going by SKILL.md and its folder, Windmill Bun Script Writer needs the command-line tools its instructions call (git) and credentials named WM_TOKEN. Our summary lists: The wmill CLI; A Windmill workspace.
Does Windmill Bun Script Writer access the network?
SKILL.md names 1 domain. As links in the text: windmill.dev. This is read from the text; nothing was executed.
Is Windmill Bun Script Writer 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 Windmill Bun Script Writer use?
Windmill Bun Script Writer 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 Windmill Bun Script Writer use?
About 9.7k tokens (SKILL.md is roughly 39k 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 Windmill Bun Script Writer?
Skills that share tags, products or a category with Windmill Bun Script Writer: TS SDK Author (mindfold-ai/Trellis, 15k stars), Prepare Rslint npm Release (web-infra-dev/rslint, 460 stars), Pump Build Release (nirholas/pump-fun-sdk, 133 stars) and Release (ar-io/ar-io-node, 127 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Windmill Bun Script Writer?
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.