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Agent skill

SDK Development

by golemcloud in golemcloud/golem

Working on the Rust, TypeScript, or MoonBit SDKs in sdks/. An agent skill from golemcloud/golem.

Custom licenceAuto-check passed

Install SDK Development

skills CLI
$ npx skills add golemcloud/golem --skill sdk-development -a claude-code

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

GitHub CLI
$ gh skill install golemcloud/golem sdk-development --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/golemcloud/golem.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/sdk-development .claude/skills/sdk-development && 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
sdk-development
GitHub stars
1.5k
Token cost
~2k tokens
SKILL.md length
710 words
Files
1
Skills in repo
289
Repo updated
First seen
Licence
Custom licence

At a glance

Working on the Rust, TypeScript, or MoonBit SDKs in sdks/. An agent skill from golemcloud/golem.

  • Works in 3 steps: Build golem-rust / golem-rust-macro → Find Rust test components depending on… → Rebuild each affected component…
  • Modifying SDK code
  • SKILL.md covers Rust SDK (sdks/rust/), TypeScript SDK (sdks/ts/), MoonBit SDK (sdks/moonbit/) and Downstream Rebuild Requirements, plus 3 more sections
  • Calls npx and cargo

What it does

SDK Development is an agent skill from golemcloud/golem. Working on the Rust, TypeScript, or MoonBit SDKs in sdks/. Use when modifying SDK code, adding SDK features, or testing SDK changes with the main Golem platform.

Its SKILL.md is about 2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with Rust, TypeScript and WebAssembly. The repository describes itself as: Golem Cloud is the agent-native platform for building AI agents and distributed applications that never lose state, never duplicate work, and never require you to build…

When your agent uses it

  • Modifying SDK code
  • Adding SDK features
  • Testing SDK changes with the main Golem platform

Example prompts

  • “/sdk-development”

Requirements

  • Node.js

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Build golem-rust / golem-rust-macro
  2. Find Rust test components depending on the SDK: check test-components/**/Cargo.toml for golem-rust references
  3. Rebuild each affected component following its AGENTS.md

What it can do on your machine

Read from SKILL.md and the folder at commit 2dea6b9. 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:

    • npx
    • cargo

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

  • Network

    No URLs in SKILL.md. Its commands use npx, 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

SDK Development loads about 2k tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 710 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~44
When it runs · the whole SKILL.md, loaded when a task matches
~2k

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 710 words (~2,035 tokens).

“The SDKs in sdks/ are not part of the main build flow (cargo make build does not build them). Each SDK has its own build system and conventions.”

— opening of SKILL.md by golemcloud, Custom licence
name
sdk-development

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/sdk-development of golemcloud/golem.

Open the folder on GitHubat commit 2dea6b9

Compare with similar skills

SDK Development 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.

SDK Development compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
SDK Development this skillgolemcloud/golem1.5k—~2kAutomated safety check: PassCustom licence
Cloudflare Workers Multi Langsecondsky/claude-skills227—~1.3kAutomated safety check: PassMIT
Firecrawl Page Scrape Integrationfirecrawl/firecrawl189k1 repos~944Automated safety check: PassISC
Pnpm Engineteambit/bit18k—~1.9kAutomated safety check: PassCustom licence
Build Teaql Appteaql/teaql-agent-kit2.8k—~4.6kAutomated safety check: PassMIT
Testing Changespnpm/pnpm37k—~1.1kAutomated safety check: PassMIT

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Works with

Questions about SDK Development

What does SDK Development do?

Working on the Rust, TypeScript, or MoonBit SDKs in sdks/. An agent skill from golemcloud/golem. SDK Development is an agent skill from golemcloud/golem. Working on the Rust, TypeScript, or MoonBit SDKs in sdks/.

When should I use SDK Development?

SDK Development fits situations like: modifying SDK code; adding SDK features; testing SDK changes with the main Golem platform.

How do I install SDK Development in Claude Code?

Run `npx skills add golemcloud/golem --skill sdk-development -a claude-code`. Or copy the skill folder (.agents/skills/sdk-development in golemcloud/golem) into .claude/skills/sdk-development in your project. Claude Code loads it when a task matches its description.

How do I install SDK Development in Codex?

Run `npx skills add golemcloud/golem --skill sdk-development -a codex`. Or copy the skill folder (.agents/skills/sdk-development in golemcloud/golem) into .agents/skills/sdk-development in your project. Codex loads it when a task matches its description.

Can I use SDK Development 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 golemcloud/golem --skill sdk-development -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sdk-development, .gemini/skills/sdk-development, .github/skills/sdk-development and .opencode/skills/sdk-development in your project.

What does SDK Development need to run?

Going by SKILL.md and its folder, SDK Development needs the command-line tools its instructions call (npx and cargo). Our summary lists: Node.js.

Does SDK Development access the network?

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

Is SDK Development 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 SDK Development use?

SDK Development 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 SDK Development use?

About 2k tokens (SKILL.md is roughly 8.1k 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 SDK Development?

Skills that share tags, products or a category with SDK Development: Cloudflare Workers Multi Lang (secondsky/claude-skills, 227 stars), Firecrawl Page Scrape Integration (firecrawl/firecrawl, 189k stars), Pnpm Engine (teambit/bit, 18k stars) and Build Teaql App (teaql/teaql-agent-kit, 2.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains SDK Development?

golemcloud (a GitHub organization) maintains it in golemcloud/golem, which has 1,506 GitHub stars. The repository holds 289 skills in this directory. The repository was last updated on October 7, 2026.

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