add-model

add-model is a skill for Claude Code from BerriAI/litellm-skills. It costs 74 tokens per session (773 once invoked), scanned A, original, MIT.

A skill for registering a new language model with a live LiteLLM proxy. LiteLLM is a service that routes requests to different AI model providers through one interface.

In plain words
What is it for?
It is for adding, configuring, and testing models from providers such as OpenAI, Azure, Anthropic, AWS Bedrock, Google Vertex, Ollama, Groq, Together AI, and Mistral.
Why use it?
It guides the setup of provider details and credentials, then checks that the proxy can route a request to the new model.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit It is for adding, configuring, and testing models from providers such as OpenAI, Azure, Anthropic, AWS Bedrock, Google Vertex, Ollama, Groq, Together AI, and Mistral.

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Install with agentmods
npx agentmods add skills/berriai/litellm-skills/add-model
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add BerriAI/litellm-skills --skill add-model
Clone the repo
git clone --depth 1 https://github.com/BerriAI/litellm-skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for add-model

README.md
[![agentmods](https://agentmods.dev/badge/skills/berriai/litellm-skills/add-model/github.svg)](https://agentmods.dev/skills/berriai/litellm-skills/add-model)
Your own site
<a href="https://agentmods.dev/skills/berriai/litellm-skills/add-model"><img src="https://agentmods.dev/badge/skills/berriai/litellm-skills/add-model/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for add-model

Your own site · 80×15
<a href="https://agentmods.dev/skills/berriai/litellm-skills/add-model"><img src="https://agentmods.dev/badge/skills/berriai/litellm-skills/add-model.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 773 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00074 $0.00773
Opus 5 $0.00037 $0.00387
Sonnet 5 $0.00015 $0.00155
Haiku 4.5 $0.00007 $0.00077

Measured 10d ago against content hash 856febaf8330, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

add-model scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

compatibility: Requires curl.
add-model/SKILL.md · 84 lines

How it starts

The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add Model

Add a new LLM to a live LiteLLM proxy.

Setup

Ask for these if not already known:

LITELLM_BASE_URL  — e.g. https://my-proxy.example.com
LITELLM_API_KEY   — proxy admin key

API reference: https://litellm.vercel.app/docs/proxy/model_management

Ask the user

  1. Public model name — what callers will send in "model": "..." (e.g. gpt-4o, my-claude, llama3)
  2. Provider — pick from the table below
  3. Credentials — whatever that provider needs

Provider table

Provider litellm_params.model Extra params
OpenAI openai/gpt-4o api_key
Azure OpenAI azure/<deployment-name> api_key, api_base, api_version
Anthropic anthropic/claude-3-5-sonnet-20241022 api_key
AWS Bedrock bedrock/anthropic.claude-3-5-sonnet-20241022-v2:0 AWS creds via env
Google Vertex vertex_ai/gemini-1.5-pro vertex_project, vertex_location
Ollama ollama/llama3 api_base (e.g. http://localhost:11434)
Groq groq/llama-3.3-70b-versatile api_key
Together AI together_ai/meta-llama/Llama-3-70b api_key
Mistral mistral/mistral-large-latest api_key

Full list: https://docs.litellm.ai/docs/providers

Run

curl -s -X POST "$BASE/model/new" \
  -H "Authorization: Bearer $KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model_name": "<public-name>",
    "litellm_params": {
      "model": "<provider/deployment>",
      "api_key": "<key>",
      "api_base": "<base_if_needed>",
      "api_version": "<version_if_azure>"
    }
  }'

Test it

After adding, verify it routes:

curl -s -X POST "$BASE/chat/completions" \
  -H "Authorization: Bearer $KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "<public-name>",
    "messages": [{"role": "user", "content": "say hi"}],
    "max_tokens": 10
  }'

Output

Show model_id from the response — needed to update or delete the model later. Report pass/fail from the test call.

Read the full file on GitHub · 84 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 84 lines · 74 tokens per session scan A 856febaf8330

Subscribe to this mod's changes

add-model is a skill published in the GitHub repository BerriAI/litellm-skills (84 stars, last pushed 4mo ago), licensed MIT. It adds 74 tokens to every session and 773 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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