LobeHub Builtin Tool Authoring
lobehub/lobehub
Guides building LobeHub builtin agent tools, from the manifest and execution runtime to executors, chat UI renders and registry wiring.
Builds and modifies built-in plugins and their descriptor-driven registry-service provisioning.
Custom licenceAuto-check passed
Install Modifying Builtin Plugins
$ npx skills add golemcloud/golem --skill modifying-builtin-plugins -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install golemcloud/golem modifying-builtin-plugins --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/golemcloud/golem.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/modifying-builtin-plugins .claude/skills/modifying-builtin-plugins && 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 "modifying-builtin-plugins" agent skill from https://github.com/golemcloud/golem/tree/main/.agents/skills/modifying-builtin-plugins into .claude/skills/modifying-builtin-plugins/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-builtin-plugins", 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/golemcloud/golem/tree/main/.agents/skills/modifying-builtin-pluginsType 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 golemcloud/golem --skill modifying-builtin-plugins -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install golemcloud/golem modifying-builtin-plugins --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/golemcloud/golem.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/modifying-builtin-plugins .agents/skills/modifying-builtin-plugins && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "modifying-builtin-plugins" agent skill from https://github.com/golemcloud/golem/tree/main/.agents/skills/modifying-builtin-plugins into .agents/skills/modifying-builtin-plugins/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-builtin-plugins", 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 golemcloud/golem --skill modifying-builtin-plugins -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install golemcloud/golem modifying-builtin-plugins --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/golemcloud/golem.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/modifying-builtin-plugins .cursor/skills/modifying-builtin-plugins && 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 "modifying-builtin-plugins" agent skill from https://github.com/golemcloud/golem/tree/main/.agents/skills/modifying-builtin-plugins into .cursor/skills/modifying-builtin-plugins/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-builtin-plugins", 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/golemcloud/golem.git --path .agents/skills/modifying-builtin-plugins--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 golemcloud/golem --skill modifying-builtin-plugins -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install golemcloud/golem modifying-builtin-plugins --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/golemcloud/golem.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/modifying-builtin-plugins .gemini/skills/modifying-builtin-plugins && 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 "modifying-builtin-plugins" agent skill from https://github.com/golemcloud/golem/tree/main/.agents/skills/modifying-builtin-plugins into .gemini/skills/modifying-builtin-plugins/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-builtin-plugins", 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 golemcloud/golem modifying-builtin-pluginsInstalls 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 golemcloud/golem --skill modifying-builtin-plugins -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/golemcloud/golem.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/modifying-builtin-plugins .github/skills/modifying-builtin-plugins && 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 "modifying-builtin-plugins" agent skill from https://github.com/golemcloud/golem/tree/main/.agents/skills/modifying-builtin-plugins into .github/skills/modifying-builtin-plugins/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-builtin-plugins", 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 golemcloud/golem --skill modifying-builtin-plugins -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install golemcloud/golem modifying-builtin-plugins --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/golemcloud/golem.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/modifying-builtin-plugins .opencode/skills/modifying-builtin-plugins && 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 "modifying-builtin-plugins" agent skill from https://github.com/golemcloud/golem/tree/main/.agents/skills/modifying-builtin-plugins into .opencode/skills/modifying-builtin-plugins/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modifying-builtin-plugins", 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
modifying-builtin-plugins- GitHub stars
- 1.5k
- Token cost
- ~922 tokens
- SKILL.md length
- 372 words
- Files
- 1
- Skills in repo
- 289
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Builds and modifies built-in plugins and their descriptor-driven registry-service provisioning.
- Release artifacts
- SKILL.md covers Source and SDK Changes, Build and Validate, Provisioning Changes and Verification
- Calls cargo
What it does
Modifying Builtin Plugins is an agent skill from golemcloud/golem. Builds and modifies built-in plugins and their descriptor-driven registry-service provisioning. Use for plugin source, release artifacts, descriptors, versions, provisioning, or grants.
Its SKILL.md is about 920 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
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
- Release artifacts
Example prompts
- “Use the modifying-builtin-plugins skill to build and modifies built-in plugins and their descriptor-driven registry-service provisioning”
- “/modifying-builtin-plugins”
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:
cargo
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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 Builtin Plugins loads about 922 tokens when it runs. Until then it costs about 53 tokens; SKILL.md has 372 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 372 words (~922 tokens).
“Built-in plugin sources are standalone Golem applications under plugins/. Generated WASMs are published as immutable releases in golemcloud/golem-builtins; builtin-artifacts.lock.json pins their independent component versions and SHA-256 values, and the registry derives the canonical release URLs. Never commit a generated plugin…”
- name
- modifying-builtin-plugins
Files
Just SKILL.md in .agents/skills/modifying-builtin-plugins of golemcloud/golem.
Open the folder on GitHubat commit 2dea6b9
Compare with similar skills
Modifying Builtin Plugins 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 |
|---|---|---|---|---|---|---|
| Modifying Builtin Plugins this skillgolemcloud/golem | 1.5k | — | ~922 | Automated safety check: Pass | Custom licence | |
| LobeHub Builtin Tool Authoringlobehub/lobehub | 83k | — | ~2.4k | Automated safety check: Pass | Custom licence | |
| Crush Builtin Skillscharmbracelet/crush | 29k | — | ~466 | Automated safety check: Pass | Custom licence | |
| Crush Shell Builtinscharmbracelet/crush | 29k | — | ~790 | Automated safety check: Pass | Custom licence | |
| Gameobject ModifyIvanMurzak/Unity-MCP | 4.4k | — | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Object ModifyIvanMurzak/Unity-MCP | 4.4k | — | ~2.3k | Automated safety check: Pass | Apache-2.0 |
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Questions about Modifying Builtin Plugins
What does Modifying Builtin Plugins do?
Builds and modifies built-in plugins and their descriptor-driven registry-service provisioning. Modifying Builtin Plugins is an agent skill from golemcloud/golem. Builds and modifies built-in plugins and their descriptor-driven registry-service provisioning.
When should I use Modifying Builtin Plugins?
Modifying Builtin Plugins fits situations like: release artifacts.
How do I install Modifying Builtin Plugins in Claude Code?
Run `npx skills add golemcloud/golem --skill modifying-builtin-plugins -a claude-code`. Or copy the skill folder (.agents/skills/modifying-builtin-plugins in golemcloud/golem) into .claude/skills/modifying-builtin-plugins in your project. Claude Code loads it when a task matches its description.
How do I install Modifying Builtin Plugins in Codex?
Run `npx skills add golemcloud/golem --skill modifying-builtin-plugins -a codex`. Or copy the skill folder (.agents/skills/modifying-builtin-plugins in golemcloud/golem) into .agents/skills/modifying-builtin-plugins in your project. Codex loads it when a task matches its description.
Can I use Modifying Builtin Plugins 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-builtin-plugins -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-builtin-plugins, .gemini/skills/modifying-builtin-plugins, .github/skills/modifying-builtin-plugins and .opencode/skills/modifying-builtin-plugins in your project.
What does Modifying Builtin Plugins need to run?
Going by SKILL.md and its folder, Modifying Builtin Plugins needs the command-line tools its instructions call (cargo).
Does Modifying Builtin Plugins access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Modifying Builtin Plugins 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 Builtin Plugins use?
Modifying Builtin Plugins 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 Builtin Plugins use?
About 922 tokens (SKILL.md is roughly 3.7k 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 Builtin Plugins?
Skills that share tags, products or a category with Modifying Builtin Plugins: LobeHub Builtin Tool Authoring (lobehub/lobehub, 83k stars), Crush Builtin Skills (charmbracelet/crush, 29k stars), Crush Shell Builtins (charmbracelet/crush, 29k stars) and Gameobject Modify (IvanMurzak/Unity-MCP, 4.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Modifying Builtin Plugins?
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.