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Subagent Orchestrator — Antigravity 2.0 Skill

A quota-aware, parallel subagent coordination skill for Antigravity 2.0.

Turns one big task into a set of isolated, efficient agent missions — without burning your weekly quota in 30 minutes.

What it does

Splits complex tasks into isolated agent missions before any code is written
Routes tasks to the cheapest model that can handle them (Flash by default)
Runs independent agents in parallel, not in sequence
Monitors quota usage throughout and pauses if limits are approaching
Recovers from agent failures without re-running the whole mission
Runs a final integration check before declaring the mission complete

Install

One command (Windows PowerShell):

node scripts/install.js

Manual install — copy this folder to:

Windows: %USERPROFILE%\.agents\skills\subagent-orchestrator\
Mac/Linux: ~/.agents/skills/subagent-orchestrator/

Then restart your Antigravity session.

Usage

The skill auto-activates when your task:

Spans 3+ files or components
Needs parallel agents (UI + API, planner + builder, etc.)
Has quota risk (large codebase, many tool calls expected)

Or trigger it manually:

"Use subagent-orchestrator to build the auth flow"

Folder structure

subagent-orchestrator/
├── SKILL.md                          ← Main skill (auto-loaded by Antigravity)
├── scripts/
│   └── install.js                    ← Installer script
├── examples/
│   ├── nextjs-feature.md             ← 3-agent parallel Next.js feature
│   ├── api-plus-frontend.md          ← Backend + frontend parallel build
│   └── debug-mission.md              ← Minimal quota repair mission
└── resources/
    ├── mission-brief-template.md     ← Copy-paste template for any mission
    └── quota-reference.md            ← Cost estimates for every action type

Quota reference (quick)

Model	Cost
Gemini Flash	1x (default for all subagents)
Claude Sonnet	~4x (max 1 per mission)
Claude Opus	Never use in subagents

Mission size	Est. sprint used
1-file repair	< 5%
Single feature	15–25%
Full flow (auth, API, UI)	30–45%

Contributing

This skill was built to fill a real gap — the community's existing subagent skills had no quota management, no parallel coordination, and no error recovery.

PRs welcome. Follow the SKILL.md format from the Antigravity docs. Submit to: https://github.com/sickn33/antigravity-awesome-skills

Compatibility

Antigravity 2.0+ (CLI and IDE)
Claude Code
Cursor (via SKILL.md standard)
OpenCode

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