Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add Bilal140202/the-lord-of-the-skills --skill continuous-labs__antigravity-sdk-nodejsgit clone --depth 1 https://github.com/Bilal140202/the-lord-of-the-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/continuous-labs__antigravity-sdk-nodejs)<a href="https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/continuous-labs__antigravity-sdk-nodejs"><img src="https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/continuous-labs__antigravity-sdk-nodejs/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/bilal140202/the-lord-of-the-skills/continuous-labs__antigravity-sdk-nodejs"><img src="https://agentmods.dev/badge/skills/bilal140202/the-lord-of-the-skills/continuous-labs__antigravity-sdk-nodejs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00053 | $0.01075 |
| Opus 5 | $0.00026 | $0.00537 |
| Sonnet 5 | $0.00011 | $0.00215 |
| Haiku 4.5 | $0.00005 | $0.00108 |
Grade A, and why
google-antigravity-sdk scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
91% identical to google-antigravity-sdk — 67 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Google Antigravity SDK
Installation & Setup
Before proceeding with any Google Antigravity tasks, ensure the environment is ready:
- Verify Applicability: If operating in an existing codebase, verify that using this Node.js SDK is possible and appropriate for the project.
- Check Dependencies: Check if
google-antigravityis listed in the project's dependencies (e.g.,package.json,package.json). - Install Package: Ensure the
google-antigravityNode.js package is installed. - Authentication Setup: Check for a valid
GEMINI_API_KEYenvironment variable or a.envfile (required to access Gemini models).- If credentials are missing, you MUST actively help the user get set up
with an API key by providing the following link:
- Default to Google AI Studio:
https://aistudio.google.com/app/api-keys
- Default to Google AI Studio:
- Explain that the API key can be passed explicitly in code as shorthand
(e.g.,
LocalAgentConfig(api_key="...")) or automatically read from the environment.
- If credentials are missing, you MUST actively help the user get set up
with an API key by providing the following link:
Routing Table
Use the following information to dig deeper into specific topics based on the user request. Read the referenced files or explore the directories to find relevant information.
References
- If the user needs to understand the high-level overview and core concepts of
the Google Antigravity SDK (Agent, Conversation, Connection), read
references/architecture.md. - If the user needs to perform advanced agent configuration, select
appropriate models, or understand the critical rules for model identifiers
to avoid assumptions, read
references/agent_configuration.md. - If the user needs to extend an agent's capabilities by integrating Model
Context Protocol (MCP) servers, or configure tool permissions for the agent,
read
references/mcp_integration.md. - If the user needs to define safety policies, resolve execution order, or
restrict agent actions using predicates, read
references/safety_policies.md. - If the user needs to debug failed agents, stream logs, or implement error
recovery using hooks to make agents robust, read
references/error_handling.md. - If the user needs to monitor costs, track token usage (including thinking
tokens), or build custom audit logs for advanced monitoring, read
references/observability.md. - If the user needs to see a list of built-in tools and understand their default state, read
references/built_in_tools.md.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 92 lines · 53 tokens per session scan A 516fb73d1374
google-antigravity-sdk is a skill published in the GitHub repository Bilal140202/the-lord-of-the-skills (4 stars, last pushed 6d ago), licensed MIT. It adds 53 tokens to every session and 1,075 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to google-antigravity-sdk, differing in 67 lines, and is treated as a copy.
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