alive:build-extensions SKILL.md skillA
alive:build-extensions from alivecontext/alive is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add alivecontext/alive/alive:build-extensions@git:20260420.730d884Pins git:20260420.730d884 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- alivecontext/alive
- Path
plugins/alive/skills/build-extensions/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260420.730d884, committed Apr 20, 2026
- First version recorded
- Mar 28, 2026
- Size
- 6,464 bytes
- Repository stars
- 131
- License
- MIT
Create new skills, rules, and hooks for your world. Checks plugin compatibility, writes to the human's space (not plugin cache), validates against the system, and suggests when repeated work should become a skill. For marketplace-ready plugins, hands off to the contributor plugin.
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
# Extend
Build custom capabilities that integrate cleanly with the ALIVE Context System.
Not about adjusting preferences or voice (that's `alive:settings`). Extend is about creating NEW things — skills, rules, hooks — that make the system do something it couldn't before.
---
## What It Builds
| Type | What it is | Where it lives |
|------|-----------|---------------|
| **Skill** | Repeatable workflow with instructions | `.alive/skills/{skill-name}/SKILL.md` |
| **Rule** | Behavioral constraint or guide | `.alive/rules/{rule-name}.md` |
| **Hook** | Automated trigger on system events | `.alive/hooks/` (scripts + hooks.json) |
| **Plugin** | Distributable package of skills + rules + hooks | Hands off to `contributor@alivecontext` |
---
## Flow
### 1. Understand What the Human Wants
"I want to automatically tag emails by walnut"
"Every time I save, it should update my project board"
"I keep doing this manually every session — can we automate it?"
The squirrel determines: is this a skill (process), a rule (constraint), a hook (automation), or a combination?
```
╭─ squirrel that sounds like a hook — an automated trigger that fires on save.
│ Want me to build it?
│
…Read the whole file at its exact version.
How to install
mdr add alivecontext/alive/alive:build-extensions@sha256:d097b8d24b74b1ccThe line at the top of this page pins the label git:20260420.730d884, 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.
[](https://markdownregistry.com/a/art_vlt6cs65irpu5uh3)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Mar 28, 2026 and Apr 20, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260420.730d884 latest | 2026-04-20 | 730d884 | 6,464 B | A | view · diff |
| git:20260420.c1cdbd6 | 2026-04-20 | c1cdbd6 | 6,182 B | A | view · diff |
| git:20260403.98b11b9 | 2026-04-03 | 98b11b9 | 6,444 B | A | view · diff |
| git:20260328.7f7bd27 | 2026-03-28 | 7f7bd27 | 6,444 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6464 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
alivecontext/alive · 131 stars · license MIT · pushed 2026-10-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vlt6cs65irpu5uh3 GET https://markdownregistry.com/api/v1/resolve?ref=alivecontext/alive/alive:build-extensions GET https://markdownregistry.com/api/v1/blob/d097b8d24b74b1cc7964430e1c7719d34c157f4bd39f5f84879ddf947ad41184
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.