sounder25/google-antigravity-skills-library
Operational capabilities for high-leverage AI coding agents. Features deterministic execution, 100% tested safety gates, impasse detection, and adversarial review. Includes 'Gold Standard' meta-skills like Pre-Action Guard and Failure Postmortem to prevent loops and data loss.
npx skills add sounder25/google-antigravity-skills-libraryREADME

Antigravity Skills Library
A collection of operational skills for AI agents and automation systems. Focused on deterministic execution, safety gates, adversarial review, and structured learning from failure. This repository provides capabilities, not autonomy, policy enforcement, or agent orchestration.
📦 Installation
This library is designed to live within the Antigravity configuration directory.
-
Locate your specific installation directory:
~/.gemini/antigravity/skills/ -
Clone this repository:
cd ~/.gemini/antigravity/ git clone https://github.com/Sounder25/Google-Antigravity-Skills-Library.git skills -
Verify: Ensure the directory structure matches:
~/.gemini/antigravity/skills/00_workspace_forensics/SKILL.md
⚙️ Prerequisites
PowerShell 5.1+ or Core 7+ is required for the underlying automation scripts.
One-time setup for your PowerShell session:
Set-ExecutionPolicy -Scope CurrentUser RemoteSigned -Force
Set-StrictMode -Version Latest
$ErrorActionPreference = "Stop"
🛡️ Robustness & Safety (Gold Standard)
Legend: ✅ Verified indicates the skill has passed deterministic tests
and is behavior-frozen for v1.0.0.
17. Impasse Detector (Self-Correction)
Skill: SKILL-017: Impasse Detector ✅ Verified
Trigger: check logic, am i stuck
detect_impasse.ps1 - Analyzes transcripts for unproductive loops.
18. Pre-Action Guard (QA Gate)
Skill: SKILL-018: Pre-Action Guard ✅ Verified
Trigger: guard check, verify action
guard_check.ps1 - Validates destructive actions against plan.
19. Adversarial Reviewer (Red Team)
Skill: SKILL-019: Adversarial Reviewer ✅ Verified
Trigger: red team this
prepare_review.ps1 - Generates "Attack" prompts for self-review.
20. Failure Postmortem (Learning)
Skill: SKILL-020: Failure Postmortem ✅ Verified
Trigger: log failure
log_failure.ps1 - Structured logging of why things broke.
21. Skill Gap Identifier (Evolution)
Skill: SKILL-021: Skill Gap Identifier ✅ Verified
Trigger: new capability
propose_skill.ps1 - Scaffolds new skills from failure data.
22. State Overlay Consistency Checker
Skill: SKILL-022: State Overlay Consistency Checker ✅ Verified
Trigger: verify state continuity
Enforces state-visibility across execution contexts to prevent silent gas under-charging.
23. Paste Sanitizer
Skill: SKILL-023: Paste Sanitizer ✅ Verified
Trigger: sanitize commands
Strips prompts/output from mixed snippets to ensure safe copy-pasting.
🧠 Cognitive Skills (Phase 2 - "Superpowers")
1. Auto-Recovery Loop (Self-Healing)
Skill: SKILL-006: Error-State Recovery
2. Deterministic Planner (Architecture First)
Skill: SKILL-007: Deterministic Planner
3. Context Pruner (Focus)
Skill: SKILL-008: Context Window Pruner
4. Agent Swarm (Delegation)
Skill: SKILL-009: Agent-Swarm Spawner
5. Async Feedback (Correction)
Skill: SKILL-010: Async Feedback Loop
📚 Knowledge Skills (Phase 3)
11. Doc Parser (LLMs.txt)
Skill: SKILL-011: LLMs.txt Doc Parsing
12. Dependency Mapper (Graph)
Skill: SKILL-012: Dependency Tree Mapping
13. Environment Master (Context)
Skill: SKILL-013: Env Bash Mastery
🛠️ Housekeeping Skills
| ID | Name | Description |
|---|---|---|
| 000 | Workspace Forensics | Gold Standard Audit. |
| 001 | Run EELS Tests | EVM Compliance. |
| 002 | Project Rename | Safe Rename. |
| 003 | Sync Repos | Multi-repo drift. |
| 004 | Clean Artifacts | Disk cleanup. |
| 005 | Update Breadcrumbs | Intent tracking. |
| 014 | Detect Duplicates | Finds duplicate files. |
| 015 | Generate Gitignore | Creates standard ignores. |
🔌 Integration
MCP Connector
Skill: SKILL-016: MCP Connector
server.py - Exposes this entire library as an MCP Server.