Most agent toolkits promise orchestration and helpers; AG Kit makes those guarantees reproducible and native by targeting the Antigravity runtime directly. That placement trades portability for tighter safety, packaging, and CI contracts—so teams running production agents inside Antigravity get stronger runtime assertions and simpler compliance.
What Sets It Apart
- Antigravity-native workspace contract: installs a managed
.agents/workspace with manifest, SemVer contracts for agents/skills/workflows, and a SHA-256 inventory for packaged plugins—so updates are merge-aware and recoverable. - Built-in safety gate: a narrow PreToolUse hook blocks high-risk, destructive tool calls (root fs deletion, drive formatting, raw-disk overwrite) while allowing normal developer cleanup, making destructive-command checks automatic in the runtime.
- Opinionated orchestration and MCP guidance: includes 20 role definitions, 47 skills, 13 workflows, rules, and explicit MCP sync helpers and backup policies—providing a ready set of specialist routing and persistent-memory conventions for multi-agent flows.
- Production readiness checklist and validation: CI-ready validators, Antigravity Doctor checks, dependency review and a documented production smoke test reduce operational surprises when promoting an agent suite to production.
Who it's for and trade-offs
Great fit if you operate or plan to operate an agent-driven codebase inside a trusted Google Antigravity workspace and need reproducible update/rollback semantics, built-in safety gating, and an opinionated workspace layout. It accelerates teams that value auditability, manifest-driven packaging, and runtime-enforced safety policies.
Look elsewhere if you need a runtime-agnostic agent framework (AG Kit is explicitly Antigravity-native), if you cannot run Node.js 22 / Python 3.10 in your toolchain, or if you require lightweight toy agents rather than a managed, production-focused workspace. The project intentionally narrows the safety hook surface and does not replace platform permissions or sandboxing.
