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Agent skill

Add Model

by theopenco in theopenco/llmgateway

Add a model or provider mapping to the catalogue, or verify one that was already written — pricing, capability and reasoning metadata, scoped e2e, and playground options for image/video models.

Custom licenceAuto-check: notesTesting & QA

Install Add Model

skills CLI
$ npx skills add theopenco/llmgateway --skill add-model -a claude-code

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

GitHub CLI
$ gh skill install theopenco/llmgateway add-model --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/theopenco/llmgateway.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/add-model .claude/skills/add-model && 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
add-model
GitHub stars
1.7k
Token cost
~5.1k tokens
SKILL.md length
2,135 words
Files
1
Skills in repo
19
Repo updated
First seen
Licence
Custom licence

At a glance

Add a model or provider mapping to the catalogue, or verify one that was already written — pricing, capability and reasoning metadata, scoped e2e, and playground options for image/video models.

  • Works in 9 steps: Scope → Where things live → Pricing → …
  • The user asks to add a named model on a provider
  • SKILL.md covers New providers, 1. Scope, 2. Where things live and Catalogue rules, plus 7 more sections
  • Calls pnpm, gh and git

What it does

Add Model is an agent skill from theopenco/llmgateway. Add a model or provider mapping to the catalogue, or verify one that was already written — pricing, capability and reasoning metadata, scoped e2e, and playground options for image/video models. Use when the user asks to add a named model on a provider, create a provider mapping, add a provider, check model pricing, verify a model, or change packages/models/src/models.

Its SKILL.md is about 5.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering End-to-end testing. 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

  • The user asks to add a named model on a provider
  • Create a provider mapping
  • Check model pricing
  • Change packages/models/src/models

Example prompts

  • “/add-model”

Workflow steps

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

  1. Scope
  2. Where things live
  3. Pricing
  4. Metadata
  5. Reasoning efforts
  6. Image, video, and other endpoints
  7. Verify
  8. When something fails
  9. Finish

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

    Shell commands in SKILL.md call:

    • pnpm
    • gh
    • git
    • curl

    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):

    • airside.llmgateway.io

    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

Add Model loads about 5.1k tokens when it runs. Until then it costs about 95 tokens; SKILL.md has 2,135 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~95
When it runs · the whole SKILL.md, loaded when a task matches
~5.1k

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: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NoteMentions a .env fileSKILL.md:245
    - `pnpm test:e2e` loads `.env` automatically. Use credentials already
  • NoteMentions a .env fileSKILL.md:246
    configured in `.envrc` or `.env`; never inspect or invoke password managers

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 2,135 words (~5,109 tokens).

“Prove every declared value against the live provider. A wrong price mis-bills every request until someone audits it; a wrong capability flag routes traffic to a deployment that 400s. Values handed to you in a prompt or PR are unverified…”

— opening of SKILL.md by theopenco, Custom licence
name
add-model

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/add-model of theopenco/llmgateway.

Open the folder on GitHubat commit 414b1b9

Compare with similar skills

Add Model 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.

Add Model compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Add Model this skilltheopenco/llmgateway1.7k—~5.1kAutomated safety check: NotesCustom licence
Web Application Testinganthropics/skills180k51 repos~966Automated safety check: PassApache-2.0
TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph11211 repos~2.4kAutomated safety check: PassNone
Uloop Replay Inputkurotu/VRCQuestTools3733 repos~615Automated safety check: PassMIT
Ui4 Convert Testspayloadcms/payload45k—~3.5kAutomated safety check: PassMIT
E2Estackia/rtp2httpd2.2k—~517Automated safety check: PassGPL-2.0

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More from theopenco/llmgateway

All 19 skills in this repo

  • Blog

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    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.

    1.7k GitHub stars~2.2k tokensUpdated today
    Auto-check passed

  • Model Benchmarks

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    Run and report repository model or provider-mapping benchmarks.

    1.7k GitHub stars~1.1k tokensUpdated today
    Auto-check: notes

  • Skill Authoring

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    Create, update, and audit repository-local agent skills against the current LLM Gateway codebase.

    1.7k GitHub stars~662 tokensUpdated today
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  • Security Audit

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    Security best practices, vulnerability review, and full security audits for LLM Gateway.

    1.7k GitHub stars~1.8k tokensUpdated today
    Auto-check passed

  • Changelog

    theopenco/llmgateway

    Write a new LLM Gateway changelog entry. An agent skill from theopenco/llmgateway.

    1.7k GitHub stars~2k tokensUpdated today
    Auto-check passed

  • 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.

    1.7k GitHub stars~1.7k tokensUpdated today
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Categories

Questions about Add Model

What does Add Model do?

Add a model or provider mapping to the catalogue, or verify one that was already written — pricing, capability and reasoning metadata, scoped e2e, and playground options for image/video models. Add Model is an agent skill from theopenco/llmgateway. Add a model or provider mapping to the catalogue, or verify one that was already written — pricing, capability and reasoning metadata, scoped e2e, and playground options for image/video models.

When should I use Add Model?

Add Model fits situations like: the user asks to add a named model on a provider; create a provider mapping; check model pricing; change packages/models/src/models.

How do I install Add Model in Claude Code?

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

How do I install Add Model in Codex?

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

Can I use Add Model 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 add-model -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-model, .gemini/skills/add-model, .github/skills/add-model and .opencode/skills/add-model in your project.

What does Add Model need to run?

Going by SKILL.md and its folder, Add Model needs the command-line tools its instructions call (pnpm, gh, git and curl).

Does Add Model access the network?

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

Is Add Model safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Add Model use?

Add Model 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 Add Model use?

About 5.1k tokens (SKILL.md is roughly 20k 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 Add Model?

Skills that share tags, products or a category with Add Model: Web Application Testing (anthropics/skills, 180k stars), TDD Workflow (hellangleZ/burn-in-cceverywhere-ralph, 112 stars), Uloop Replay Input (kurotu/VRCQuestTools, 373 stars) and Ui4 Convert Tests (payloadcms/payload, 45k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Add Model?

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.