letta-configuration SKILL.md skillA

letta-configuration from letta-ai/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add letta-ai/skills/letta-configuration@git:20260204.eba0c2a

Pins git:20260204.eba0c2a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
letta-ai/skills
Path
letta/letta-configuration/SKILL.md
Versions recorded
1
Latest version
git:20260204.eba0c2a, committed Feb 4, 2026
Size
5,025 bytes
Repository stars
152
License
a license file GitHub does not identify

Configure LLM models and providers for Letta agents and servers. Use when setting model handles, adjusting temperature/tokens, configuring provider-specific settings, setting up BYOK providers, or configuring self-hosted deployments with environment variables.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Letta Configuration

Complete guide for configuring models on agents and providers on servers.

## When to Use This Skill

**Agent-level (model configuration):**
- Creating agents with specific model configurations
- Adjusting model settings (temperature, max tokens, context window)
- Configuring provider-specific features (OpenAI reasoning, Anthropic thinking)
- Changing models on existing agents

**Server-level (provider configuration):**
- Setting up BYOK (bring your own key) providers
- Configuring self-hosted deployments with environment variables
- Validating provider credentials
- Setting up custom OpenAI-compatible endpoints

**Not covered here:** Model selection advice (which model to choose) - see `agent-development` skill.

---

## Part 1: Model Configuration (Agent-Level)

### Model Handles

Models use a `provider/model-name` format:

| Provider | Handle Prefix | Example |
|----------|---------------|---------|
| OpenAI | `openai/` | `openai/gpt-4o`, `openai/gpt-4o-mini` |
| Anthropic | `anthropic/` | `anthropic/claude-sonnet-4-5-20250929` |
| Google AI | `google_ai/` | `google_ai/gemini-2.0-flash` |
| Azure OpenAI | `azure/` | `azure/gpt-4o` |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add letta-ai/skills/letta-configuration@sha256:04e3c3eccfafe25d

The line at the top of this page pins the label git:20260204.eba0c2a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_zhzsbpji7yhmy6ch.svg)](https://markdownregistry.com/a/art_zhzsbpji7yhmy6ch)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Feb 4, 2026.

versioncommittedcommitsizeaudit
git:20260204.eba0c2a latest2026-02-04 eba0c2a 5,025 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5025 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

letta-ai/skills · 152 stars · license a license file GitHub does not identify · pushed 2026-10-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_zhzsbpji7yhmy6ch
GET https://markdownregistry.com/api/v1/resolve?ref=letta-ai/skills/letta-configuration
GET https://markdownregistry.com/api/v1/blob/04e3c3eccfafe25d3fb74a8034c5c04f75128b61676a8789e802b770eab42189

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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