letta-ai/letta-code · src/skills/builtin/creating-skills/SKILL.md

creating-skills skillA

creating-skills is agent-read markdown (skill) from letta-ai/letta-code: Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Letta Code's capabilities with specialized knowledge, workflows, or tool integrations..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add letta-ai/letta-code/creating-skills@git:20260327.6f188dd
Exact content
mdr add letta-ai/letta-code/creating-skills@sha256:46b3d2c133ea500a

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_53fdjans2cpkomkh.svg)](https://markdownregistry.com/a/art_53fdjans2cpkomkh)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260327.6f188dd latest2026-03-27 6f188dd 18,563 BA view · diff
git:20260105.d9623562026-01-05 d962356 18,453 BA view · diff
git:20251229.3e4212d2025-12-29 3e4212d 18,429 BA view · diff
git:20251222.899966f2025-12-22 899966f 18,428 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (18563 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/letta-code · 3,370 stars · license Apache-2.0 · pushed 2026-09-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_53fdjans2cpkomkh
GET https://markdownregistry.com/api/v1/resolve?ref=letta-ai/letta-code/creating-skills
GET https://markdownregistry.com/api/v1/blob/46b3d2c133ea500a0cf01cff8be41658f31739de199d7de8b9be8b0fef33bbe8

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.