Agent skill

Golem Call From External Effect

by golemcloud in golemcloud/golem

Calling Effect-based Golem agents from external Node.js applications with generated TypeScript bridge clients and Effect v4.

Custom licenceAuto-check passed

Install Golem Call From External Effect

skills CLI
$ npx skills add golemcloud/golem --skill golem-call-from-external-effect -a claude-code

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

GitHub CLI
$ gh skill install golemcloud/golem golem-call-from-external-effect --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/golem-skills/skills/effect/golem-call-from-external-effect .claude/skills/golem-call-from-external-effect && 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
golem-call-from-external-effect
GitHub stars
1.5k
Token cost
~2.7k tokens
SKILL.md length
953 words
Files
1
Skills in repo
289
Repo updated
First seen
Licence
Custom licence

At a glance

Calling Effect-based Golem agents from external Node.js applications with generated TypeScript bridge clients and Effect v4.

  • Works in 7 steps: Ensure the Effect agent has the required… → Configure a ts external bridge in… → Run golem build to regenerate the bridge… → …
  • Standalone Effect CLIs
  • SKILL.md covers Steps, Generate the TypeScript Bridge, Set Up the Standalone Effect… and Invoke an Agent from Effect, plus 5 more sections
  • Calls npm; needs GOLEM_TOKEN

What it does

Golem Call From External Effect is an agent skill from golemcloud/golem. Calling Effect-based Golem agents from external Node.js applications with generated TypeScript bridge clients and Effect v4. Use for standalone Effect CLIs, servers, or scripts that invoke deployed agents from outside Golem.

Its SKILL.md is about 2.7k 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 TypeScript and Node.js. 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

  • Standalone Effect CLIs
  • Scripts that invoke deployed agents from outside Golem

Example prompts

  • “/golem-call-from-external-effect”

Requirements

  • Node.js
  • A credential in GOLEM_TOKEN

Workflow steps

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

  1. Ensure the Effect agent has the required TypeScript name and method contract, then build it.
  2. Configure a ts external bridge in golem.yaml for the Promise-based client used below. An
  3. Run golem build to regenerate the bridge from the built agent metadata.
  4. Deploy the built application so the external client can reach the current agent definition.
  5. Install and build the generated npm package.
  6. Add the generated package and the same Effect v4 version used by the component to a standalone
  7. Configure the generated client, wrap its Promise operations with Effect.tryPromise, and run

What it can do on your machine

Read from SKILL.md and the folder at commit c6a3029. 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:

    • npm

    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):

    • github.com

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

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • GOLEM_TOKEN

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

Context cost

Golem Call From External Effect loads about 2.7k tokens when it runs. Until then it costs about 64 tokens; SKILL.md has 953 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~64
When it runs · the whole SKILL.md, loaded when a task matches
~2.7k

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 953 words (~2,682 tokens).

“Use Golem's generated external TypeScript bridge for a standalone Effect/Node.js application. An Effect component publishes TypeScript-shaped agent metadata, so its generated bridge classes, agent id values, method names, values, and CLI references use TypeScript syntax.”

— opening of SKILL.md by golemcloud, Custom licence
name
golem-call-from-external-effect

Read the full SKILL.md on GitHub

Files

Just SKILL.md in golem-skills/skills/effect/golem-call-from-external-effect of golemcloud/golem.

Open the folder on GitHubat commit c6a3029

Compare with similar skills

Golem Call From External Effect 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.

Golem Call From External Effect compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Golem Call From External Effect this skillgolemcloud/golem1.5k—~2.7kAutomated safety check: PassCustom licence
Node Backend Development Guidelinesdiet103/claude-code-infrastructure-showcase10k2 repos~2kAutomated safety check: PassMIT
Bun DevelopmentGabrielMartinMoran/mind14812 repos~3.5kAutomated safety check: NotesMIT
Ink Tui Wizardnovuhq/novu40k—~1.9kAutomated safety check: PassMIT
Generate Release Notesteambit/bit18k—~2.2kAutomated safety check: PassCustom licence
Compromise NLP Libraryspencermountain/compromise12k—~2kAutomated safety check: PassMIT

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Questions about Golem Call From External Effect

What does Golem Call From External Effect do?

Calling Effect-based Golem agents from external Node.js applications with generated TypeScript bridge clients and Effect v4. Golem Call From External Effect is an agent skill from golemcloud/golem.js applications with generated TypeScript bridge clients and Effect v4.

When should I use Golem Call From External Effect?

Golem Call From External Effect fits situations like: standalone Effect CLIs; scripts that invoke deployed agents from outside Golem.

How do I install Golem Call From External Effect in Claude Code?

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

How do I install Golem Call From External Effect in Codex?

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

Can I use Golem Call From External Effect 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 golem-call-from-external-effect -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/golem-call-from-external-effect, .gemini/skills/golem-call-from-external-effect, .github/skills/golem-call-from-external-effect and .opencode/skills/golem-call-from-external-effect in your project.

What does Golem Call From External Effect need to run?

Going by SKILL.md and its folder, Golem Call From External Effect needs the command-line tools its instructions call (npm) and credentials named GOLEM_TOKEN. Our summary lists: Node.js; A credential in GOLEM_TOKEN.

Does Golem Call From External Effect access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Golem Call From External Effect 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 Golem Call From External Effect use?

Golem Call From External Effect 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 Golem Call From External Effect use?

About 2.7k tokens (SKILL.md is roughly 11k 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 Golem Call From External Effect?

Skills that share tags, products or a category with Golem Call From External Effect: Node Backend Development Guidelines (diet103/claude-code-infrastructure-showcase, 10k stars), Bun Development (GabrielMartinMoran/mind, 148 stars), Ink Tui Wizard (novuhq/novu, 40k stars) and Generate Release Notes (teambit/bit, 18k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Golem Call From External Effect?

golemcloud (a GitHub organization) maintains it in golemcloud/golem, which has 1,507 GitHub stars. The repository holds 289 skills in this directory. The repository was last updated on October 8, 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.