Skill Creator
Azure/azqr
Create new skills, modify and improve existing skills, and measure skill performance.
Create, update, and audit repository-local agent skills against the current LLM Gateway codebase.
Install Skill Authoring
$ npx skills add theopenco/llmgateway --skill skill-authoring -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install theopenco/llmgateway skill-authoring --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/theopenco/llmgateway.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/skill-authoring .claude/skills/skill-authoring && 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 "skill-authoring" agent skill from https://github.com/theopenco/llmgateway/tree/main/.agents/skills/skill-authoring into .claude/skills/skill-authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-authoring", 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/theopenco/llmgateway/tree/main/.agents/skills/skill-authoringType 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 theopenco/llmgateway --skill skill-authoring -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install theopenco/llmgateway skill-authoring --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/theopenco/llmgateway.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/skill-authoring .agents/skills/skill-authoring && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "skill-authoring" agent skill from https://github.com/theopenco/llmgateway/tree/main/.agents/skills/skill-authoring into .agents/skills/skill-authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-authoring", 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 theopenco/llmgateway --skill skill-authoring -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install theopenco/llmgateway skill-authoring --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/theopenco/llmgateway.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/skill-authoring .cursor/skills/skill-authoring && 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 "skill-authoring" agent skill from https://github.com/theopenco/llmgateway/tree/main/.agents/skills/skill-authoring into .cursor/skills/skill-authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-authoring", 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/theopenco/llmgateway.git --path .agents/skills/skill-authoring--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 theopenco/llmgateway --skill skill-authoring -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install theopenco/llmgateway skill-authoring --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/theopenco/llmgateway.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/skill-authoring .gemini/skills/skill-authoring && 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 "skill-authoring" agent skill from https://github.com/theopenco/llmgateway/tree/main/.agents/skills/skill-authoring into .gemini/skills/skill-authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-authoring", 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 theopenco/llmgateway skill-authoringInstalls 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 theopenco/llmgateway --skill skill-authoring -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/theopenco/llmgateway.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/skill-authoring .github/skills/skill-authoring && 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 "skill-authoring" agent skill from https://github.com/theopenco/llmgateway/tree/main/.agents/skills/skill-authoring into .github/skills/skill-authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-authoring", 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 theopenco/llmgateway --skill skill-authoring -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install theopenco/llmgateway skill-authoring --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/theopenco/llmgateway.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/skill-authoring .opencode/skills/skill-authoring && 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 "skill-authoring" agent skill from https://github.com/theopenco/llmgateway/tree/main/.agents/skills/skill-authoring into .opencode/skills/skill-authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-authoring", 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
skill-authoring- GitHub stars
- 1.7k
- Token cost
- ~662 tokens
- SKILL.md length
- 322 words
- Files
- 3 (incl. scripts)
- Skills in repo
- 19
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Create, update, and audit repository-local agent skills against the current LLM Gateway codebase.
- Works in 3 steps: Read AGENTS.md and the files that… → Inventory both .agents/skills and… → Classify every operational claim before…
- Editing files under .agents/skills
- SKILL.md covers Establish the source of truth, Create or edit the skill and Validate
- Runs JavaScript scripts from its folder; calls node and pnpm
What it does
Skill Authoring is an agent skill from theopenco/llmgateway. Create, update, and audit repository-local agent skills against the current LLM Gateway codebase. Use when adding or editing files under .agents/skills or .claude/skills, reviewing a skill for stale instructions, or checking that skill paths, commands, cross-references, and workflows actually exist.
Its SKILL.md is about 660 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts (for example `agents/openai.yaml`).
It sits in Agent Workflows, covering Skill authoring and Model routing and gateways. The repository describes itself as: Route, manage, and analyze your LLM requests across multiple providers with a unified API interface.
When your agent uses it
- Editing files under .agents/skills
- Reviewing a skill for stale instructions
- Checking that skill paths
- Cross-references
Example prompts
- “/skill-authoring”
Requirements
- Node.js
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Read AGENTS.md and the files that implement the workflow.
- Inventory both .agents/skills and .claude/skills, including hidden files
- Classify every operational claim before retaining it
What it can do on your machine
Read from SKILL.md and the folder at commit 414b1b9. 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
Ships 1 file in scripts/ (JavaScript), which the agent can run.
Shell commands in SKILL.md call:
nodepnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pnpm, 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
Skill Authoring loads about 662 tokens when it runs. Until then it costs about 79 tokens; SKILL.md has 322 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); the scripts in this folder 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 322 words (~662 tokens).
“Write only instructions that are necessary and proven. Treat prompts, old skills, and remembered workflows as leads, not evidence.”
- name
- skill-authoring
Files
SKILL.md and 2 other files (scripts) in .agents/skills/skill-authoring of theopenco/llmgateway.
- SKILL.md
- agents/openai.yaml
- scripts/check-skills.mjs
Open the folder on GitHubat commit 414b1b9
Compare with similar skills
Skill Authoring 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 |
|---|---|---|---|---|---|---|
| Skill Authoring this skilltheopenco/llmgateway | 1.7k | — | ~662 | Automated safety check: Pass | Custom licence | |
| Skill CreatorAzure/azqr | 795 | 89 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Skill Developer Guidediet103/claude-code-infrastructure-showcase | 10k | 11 repos | ~3.5k | Automated safety check: Pass | MIT | |
| Darwin Skill Optimizeralchaincyf/darwin-skill | 6.2k | 1 repos | ~4.7k | Automated safety check: Pass | MIT | |
| Claude Code Command Developmentanthropics/claude-plugins-official | 38k | 10 repos | ~4.8k | Automated safety check: Pass | Apache-2.0 | |
| Claude Code Plugin Structureanthropics/claude-plugins-official | 38k | 10 repos | ~3.4k | Automated safety check: Pass | Apache-2.0 |
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More from theopenco/llmgateway
All 19 skills in this repoBlog
theopenco/llmgateway
Write and validate an LLM Gateway marketing blog post in the repository's current house style, including structured frontmatter and a gpt-image-2 OpenGraph image.
Model Benchmarks
theopenco/llmgateway
Run and report repository model or provider-mapping benchmarks.
Security Audit
theopenco/llmgateway
Security best practices, vulnerability review, and full security audits for LLM Gateway.
Changelog
theopenco/llmgateway
Write a new LLM Gateway changelog entry. An agent skill from theopenco/llmgateway.
Knowledge Base
theopenco/llmgateway
Write a new LLM Gateway docs Knowledge base page under apps/docs/content/(product)/learn with light and dark dashboard screenshots.
Migrations
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Generate, review, edit, apply, or resolve conflicts for Drizzle database migrations in this repo.
Related
Categories
Questions about Skill Authoring
What does Skill Authoring do?
Create, update, and audit repository-local agent skills against the current LLM Gateway codebase. Skill Authoring is an agent skill from theopenco/llmgateway. Create, update, and audit repository-local agent skills against the current LLM Gateway codebase.
When should I use Skill Authoring?
Skill Authoring fits situations like: editing files under .agents/skills; reviewing a skill for stale instructions; checking that skill paths; cross-references.
How do I install Skill Authoring in Claude Code?
Run `npx skills add theopenco/llmgateway --skill skill-authoring -a claude-code`. Or copy the skill folder (.agents/skills/skill-authoring in theopenco/llmgateway) into .claude/skills/skill-authoring in your project. Claude Code loads it when a task matches its description.
How do I install Skill Authoring in Codex?
Run `npx skills add theopenco/llmgateway --skill skill-authoring -a codex`. Or copy the skill folder (.agents/skills/skill-authoring in theopenco/llmgateway) into .agents/skills/skill-authoring in your project. Codex loads it when a task matches its description.
Can I use Skill Authoring 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 theopenco/llmgateway --skill skill-authoring -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/skill-authoring, .gemini/skills/skill-authoring, .github/skills/skill-authoring and .opencode/skills/skill-authoring in your project.
What does Skill Authoring need to run?
Going by SKILL.md and its folder, Skill Authoring needs JavaScript for the scripts in its folder and the command-line tools its instructions call (node and pnpm). Our summary lists: Node.js.
Does Skill Authoring 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 Skill Authoring 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Skill Authoring use?
Skill Authoring 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 Skill Authoring use?
About 662 tokens (SKILL.md is roughly 2.6k 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 Skill Authoring?
Skills that share tags, products or a category with Skill Authoring: Skill Creator (Azure/azqr, 795 stars), Claude Code Skill Developer Guide (diet103/claude-code-infrastructure-showcase, 10k stars), Darwin Skill Optimizer (alchaincyf/darwin-skill, 6.2k stars) and Claude Code Command Development (anthropics/claude-plugins-official, 38k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Skill Authoring?
theopenco (a GitHub organization) maintains it in theopenco/llmgateway, which has 1,675 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on October 7, 2026.
Source: theopenco/llmgateway on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.