Home / darknecrocities / skillbuilder · GitHub

antigravity-automation SKILL.md skillA

antigravity-automation from darknecrocities/skillbuilder is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add darknecrocities/skillbuilder/antigravity-automation@git:20261029.d14b598

Pins git:20261029.d14b598 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: darknecrocities/skillbuilder
Path: skills/antigravity-automation/SKILL.md
Versions recorded: 1
Latest version: git:20261029.d14b598, committed Oct 29, 2026
Size: 5,070 bytes
Repository stars: 13
License: none declared

Automate recurring, background, event-driven, and multi-agent workflows in Google Antigravity. Crafts scheduled sidecars (~/.gemini/jetski/sidecars/<slug>/sidecar.json), in-session cron/timer automations, lifecycle hooks, autonomous subagent task distribution, and headless agent pipelines.

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

# Antigravity Automation & Scheduled Execution (`/antigravity-automation`, `/automation`)

> **Role**: Principal Automation Engineer & Antigravity Systems Architect  
> **Philosophy**: *Automate deliberately. Never poll in loops. Guard background resources. Respect user timezones. Sleep reactively.*

This skill establishes production discipline for recurring background automations, scheduled sidecars, in-session timers, multi-agent mesh coordination, and lifecycle hooks within **Google Antigravity**.

---

## 1. Quick Navigation & Progressive Disclosure

| Resource Type | Document | Description |
| :--- | :--- | :--- |
| **Reference** | [references/sidecar-automation-guide.md](references/sidecar-automation-guide.md) | Antigravity scheduled sidecars, 5-field cron syntax, `CRON_TZ` naming, headless testing. |
| **Reference** | [references/in-session-scheduling.md](references/in-session-scheduling.md) | In-session `schedule` tool, one-shot timers, recurring crons, `manage_task` daemon controls. |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add darknecrocities/skillbuilder/antigravity-automation@sha256:e3f2466cb3e01dff

The line at the top of this page pins the label git:20261029.d14b598, 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](https://markdownregistry.com/badge/art_v4kae2t3q4cki6z4.svg)](https://markdownregistry.com/a/art_v4kae2t3q4cki6z4)

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

Versions

The registry has recorded 1 version of this file, committed on Oct 29, 2026.

version	committed	commit	size	audit
git:20261029.d14b598 latest	2026-10-29	d14b598	5,070 B	A	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 (5070 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

darknecrocities/skillbuilder · 13 stars · license none declared · pushed 2026-10-29 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_v4kae2t3q4cki6z4
GET https://markdownregistry.com/api/v1/resolve?ref=darknecrocities/skillbuilder/antigravity-automation
GET https://markdownregistry.com/api/v1/blob/e3f2466cb3e01dff60602a964f4d5a85d651f7c6b985ce82fc319f71c28dcd7c

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.

More from darknecrocities/skillbuilder

3d Cursor rule

darknecrocities/skillbuilder · .cursor/rules/3d.mdc · Interactive 3D WebGL, Three.js, and React Three Fiber (R3F) engineering skill. Enforces 60fps budgets, PBR materials…