acquiring-skills SKILL.md skillA

acquiring-skills from letta-ai/letta-code 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/letta-code/acquiring-skills@git:20261028.a8f8e4b

Pins git:20261028.a8f8e4b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
letta-ai/letta-code
Path
src/skills/builtin/acquiring-skills/SKILL.md
Versions recorded
6
Latest version
git:20261028.a8f8e4b, committed Oct 28, 2026
First version recorded
Jan 5, 2026
Size
12,914 bytes
Repository stars
3,759
License
Apache-2.0

Discover and install skills from Hermes, ClawHub, GitHub, and other registries. Load this skill whenever a user asks for a capability you don't already have — image generation, social media, email, calendar, finance, DevOps, search, browser automation, etc.

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

# Acquiring New Skills

This skill teaches you how to safely discover and install skills from external sources, including the Hermes Skills Hub, ClawHub (OpenClaw), GitHub repositories, and Letta community repos.

## SAFETY - READ THIS FIRST

Skills can contain:
- **Markdown files** (.md) - Risk: prompt injection, misleading instructions
- **Scripts** (Python, TypeScript, Bash) - Risk: malicious code execution

### Trusted Sources (no user approval needed for download)
- `https://github.com/letta-ai/skills` - Letta's community skills
- `https://github.com/anthropics/skills` - Anthropic's official skills
- `official/*` - Hermes official optional skills (from `NousResearch/hermes-agent`)

### Untrusted Sources (ALWAYS verify with user)
For ANY source other than the above:
1. Ask the user before downloading
2. Explain where the skill comes from
3. Get explicit approval

This includes ClawHub community skills and arbitrary GitHub repos.

### Script Safety
Even for skills from trusted sources, ALWAYS:
1. Read and inspect any scripts before executing them
2. Understand what the script does
3. Be wary of network calls, file operations, or system commands

### Cross-Harness Compatibility
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add letta-ai/letta-code/acquiring-skills@sha256:5d8bedeac14e748f

The line at the top of this page pins the label git:20261028.a8f8e4b, 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_2g6dhgw5llpht63z.svg)](https://markdownregistry.com/a/art_2g6dhgw5llpht63z)

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

Versions

The registry has recorded 6 versions of this file, between Jan 5, 2026 and Oct 28, 2026, about one every 59 days.

versioncommittedcommitsizeaudit
git:20261028.a8f8e4b latest2026-10-28 a8f8e4b 12,914 BA view · diff
git:20260605.5ea2ab72026-06-05 5ea2ab7 12,906 BA view · diff
git:20260509.d6527412026-05-09 d652741 5,089 BA view · diff
git:20260207.6a7d0692026-02-07 6a7d069 5,054 BA view · diff
git:20260131.0714a8f2026-01-31 0714a8f 5,168 BA view · diff
git:20260105.86b4e5a2026-01-05 86b4e5a 4,682 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 (12914 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 · 3,759 stars · license Apache-2.0 · pushed 2026-11-02 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2g6dhgw5llpht63z
GET https://markdownregistry.com/api/v1/resolve?ref=letta-ai/letta-code/acquiring-skills
GET https://markdownregistry.com/api/v1/blob/5d8bedeac14e748f6e0adfba17bc81a59c08e4e0bde0874ffcf96ffa4ceee3bf

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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