Agent skill

Modifying Wit Interfaces

by golemcloud in golemcloud/golem

Adding or modifying WIT (WebAssembly Interface Types) interfaces.

Custom licenceAuto-check passed

Install Modifying Wit Interfaces

skills CLI
$ npx skills add golemcloud/golem --skill modifying-wit-interfaces -a claude-code

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

GitHub CLI
$ gh skill install golemcloud/golem modifying-wit-interfaces --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/modifying-wit-interfaces .claude/skills/modifying-wit-interfaces && 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
modifying-wit-interfaces
GitHub stars
1.5k
Token cost
~2.4k tokens
SKILL.md length
1,071 words
Files
1
Skills in repo
289
Repo updated
First seen
Licence
Custom licence

At a glance

Adding or modifying WIT (WebAssembly Interface Types) interfaces.

  • Works in 7 steps: Edit the WIT file → Synchronize WIT across sub-projects → Review synchronization → …
  • Changing .wit files
  • SKILL.md covers Directory Structure, Modifying an Existing WIT…, Adding a New WIT Package and Downstream Impact, plus 1 more section
  • Calls cargo, npx and git

What it does

Modifying Wit Interfaces is an agent skill from golemcloud/golem. Adding or modifying WIT (WebAssembly Interface Types) interfaces. Use when changing .wit files, updating WIT dependencies, or working with component interfaces.

Its SKILL.md is about 2.4k 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 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

  • Changing .wit files
  • Updating WIT dependencies
  • Working with component interfaces

Example prompts

  • “/modifying-wit-interfaces”

Requirements

  • Node.js

Workflow steps

7 steps, taken from the step headings in SKILL.md.

  1. Edit the WIT file
  2. Synchronize WIT across sub-projects
  3. Review synchronization
  4. Build and verify the affected scope
  5. Add the package directory under the root wit/deps/
  6. Wire it into the sync tasks
  7. Sync and verify

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:

    • cargo
    • npx
    • git

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

  • Network

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

Modifying Wit Interfaces loads about 2.4k tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 1,071 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~2.4k

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 1,071 words (~2,373 tokens).

“Golem uses WIT (WebAssembly Interface Types) to define component interfaces. WIT files are maintained in-repo and synchronized across multiple sub-projects.”

— opening of SKILL.md by golemcloud, Custom licence
name
modifying-wit-interfaces

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/modifying-wit-interfaces of golemcloud/golem.

Open the folder on GitHubat commit c6a3029

Compare with similar skills

Modifying Wit Interfaces 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.

Modifying Wit Interfaces compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Modifying Wit Interfaces this skillgolemcloud/golem1.5k—~2.4kAutomated safety check: PassCustom licence
RuView CLI, API and WASMruvnet/RuView97k—~1.2kAutomated safety check: NotesMIT
Nginx To Higress Migrationhigress-group/higress9.5k—~3.9kAutomated safety check: PassApache-2.0
Update V86felixrieseberg/windows9524k—~1.7kAutomated safety check: PassCustom licence
Dotlottie WebLottieFiles/dotlottie-web892—~3.5kAutomated safety check: PassMIT
Adding Internal API RouteTriliumNext/Trilium38k—~3.3kAutomated safety check: PassAGPL-3.0

Similar skills

  • Covers the RuView `wifi-densepose` command line binary, its Axum REST API and the WebAssembly builds for browsers and ESP32, for embedding or scripting RuView.

    97k GitHub stars~1.2k tokensUpdated today
    Backend & APIsAuto-check: notes
  • Nginx To Higress Migration

    higress-group/higress

    Migrate from ingress-nginx to Higress in Kubernetes environments.

    9.5k GitHub stars~3.9k tokensUpdated 3 days ago
    DevOps & CloudAuto-check passed
  • Update V86

    felixrieseberg/windows95

    Build and install v86 (wasm + libv86.js + BIOS) into windows95.

    24k GitHub stars~1.7k tokensUpdated 27 days ago
    Testing & QAAuto-check passed
  • Dotlottie Web

    LottieFiles/dotlottie-web

    Implement Lottie animations using dotLottie runtimes (@lottiefiles/dotlottie-web and @lottiefiles/dotlottie-react).

    892 GitHub stars~3.5k tokensUpdated today
    Media & CreativeAuto-check passed
  • Adding Internal API Route

    TriliumNext/Trilium

    A skill your agent uses when adding, moving, or wiring an internal REST endpoint in Trilium (a new /api/ route) — choosing between a core-shared handler (packages/trilium-core/src/routes/index.ts…

    38k GitHub stars~3.3k tokensUpdated today
    Testing & QAAuto-check passed
  • Client Request Signature Reversal

    awarexone/Agentic-Bug-Hunter

    Recovers a client-side request signature or anti-bot token just far enough to replay blocked requests in bug bounty testing, starting from a captured packet.

    5.3k GitHub stars~4.7k tokensUpdated 2 days ago
    SecurityAuto-check passed

More from golemcloud/golem

All 289 skills in this repo
  • Moonbit C Binding

    golemcloud/golem

    Guide for writing MoonBit bindings to C libraries using native FFI.

    1.5k GitHub stars~3k tokensUpdated today
    Auto-check passed
  • Adding Dependencies

    golemcloud/golem

    Adding or updating crate dependencies in the Golem workspace.

    1.5k GitHub stars~1k tokensUpdated today
    Auto-check passed
  • Analysing CI Failures

    golemcloud/golem

    Analysing GitHub Actions CI failures from a run URL. An agent skill from golemcloud/golem.

    1.5k GitHub stars~862 tokensUpdated today
    Auto-check passed
  • Adds a built-in WASM plugin that is externally released and provisioned by the registry service.

    1.5k GitHub stars~1.1k tokensUpdated today
    Auto-check passed
  • DB Migration Scripts

    golemcloud/golem

    Writing database migration SQL scripts. An agent skill from golemcloud/golem.

    1.5k GitHub stars~1.5k tokensUpdated today
    Auto-check passed
  • Debugging Hanging Tests

    golemcloud/golem

    Diagnosing and fixing hanging worker executor or integration tests.

    1.5k GitHub stars~879 tokensUpdated today
    Auto-check passed

Works with

Questions about Modifying Wit Interfaces

What does Modifying Wit Interfaces do?

Adding or modifying WIT (WebAssembly Interface Types) interfaces. Modifying Wit Interfaces is an agent skill from golemcloud/golem. Adding or modifying WIT (WebAssembly Interface Types) interfaces.

When should I use Modifying Wit Interfaces?

Modifying Wit Interfaces fits situations like: changing .wit files; updating WIT dependencies; working with component interfaces.

How do I install Modifying Wit Interfaces in Claude Code?

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

How do I install Modifying Wit Interfaces in Codex?

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

Can I use Modifying Wit Interfaces 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 modifying-wit-interfaces -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/modifying-wit-interfaces, .gemini/skills/modifying-wit-interfaces, .github/skills/modifying-wit-interfaces and .opencode/skills/modifying-wit-interfaces in your project.

What does Modifying Wit Interfaces need to run?

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

Does Modifying Wit Interfaces access the network?

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

Is Modifying Wit Interfaces 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 Modifying Wit Interfaces use?

Modifying Wit Interfaces 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 Modifying Wit Interfaces use?

About 2.4k tokens (SKILL.md is roughly 9.5k 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 Modifying Wit Interfaces?

Skills that share tags, products or a category with Modifying Wit Interfaces: RuView CLI, API and WASM (ruvnet/RuView, 97k stars), Nginx To Higress Migration (higress-group/higress, 9.5k stars), Update V86 (felixrieseberg/windows95, 24k stars) and Dotlottie Web (LottieFiles/dotlottie-web, 892 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Modifying Wit Interfaces?

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.