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 bgembalczyk/agent-antigravity-mcp --skill agent-antigravitygit clone --depth 1 https://github.com/bgembalczyk/agent-antigravity-mcpWrote 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/bgembalczyk/agent-antigravity-mcp/agent-antigravity)<a href="https://agentmods.dev/skills/bgembalczyk/agent-antigravity-mcp/agent-antigravity"><img src="https://agentmods.dev/badge/skills/bgembalczyk/agent-antigravity-mcp/agent-antigravity/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/bgembalczyk/agent-antigravity-mcp/agent-antigravity"><img src="https://agentmods.dev/badge/skills/bgembalczyk/agent-antigravity-mcp/agent-antigravity.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 | $0.00009 | $0.03740 |
| Opus 5 | $0.00005 | $0.01870 |
| Sonnet 5 | $0.00002 | $0.00748 |
| Haiku 4.5 | $0.00001 | $0.00374 |
Grade A, and why
agent-antigravity 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.
How it starts
The opening of the file, as written. The whole thing — 238 lines — stays where its author put it; the contents beside it link to each section on GitHub.
agent-antigravity MCP server
Delegate real work to this sandbox agent instead of doing it yourself — hand it a clear, complete, self-contained instruction through one of the tools below, then poll or continue the same interaction rather than re-prompting from scratch. It can execute code, browse the web, call functions, and keep sandbox state across turns; treat it like handing a task to a capable but literal-minded coworker who needs the full picture up front, not incremental hints.
Before calling anything, confirm GEMINI_API_KEY is set (the server raises
ValueError otherwise); confirm GITHUB_TOKEN too if the task needs
create_github_pr_task.
Tool quick reference
| Tool | Use it to |
|---|---|
create_interaction |
Start a new task: run code, search the web, multimodal input |
continue_interaction |
Send a follow-up turn in the same sandbox (files persist) |
submit_function_result |
Answer a requires_action status from a custom function tool |
get_interaction_status |
Poll a single interaction by ID |
list_interactions |
List cached interactions, newest first |
cancel_interaction |
Stop an in-progress (typically background=True) interaction |
delete_interaction |
Remove a stored interaction and its local cache entry |
create_github_pr_task |
One call: clone repo, branch, do task, push, open PR |
create_trigger |
Schedule a recurring interaction on a cron expression |
list_triggers / get_trigger |
Inspect triggers |
update_trigger_status |
Pause/resume a trigger |
delete_trigger |
Permanently remove a trigger |
run_trigger |
Fire a trigger immediately, outside its schedule |
list_trigger_executions |
Audit a trigger's run history |
create_managed_agent |
Register a reusable agent (persona, tools, environment) by ID |
list_managed_agents / get_managed_agent |
Inspect registered agents |
delete_managed_agent |
Remove a registration |
create_environment |
Provision a standalone sandbox for reuse across interactions |
list_environments / get_environment |
Inspect sandboxes |
delete_environment |
Terminate a sandbox and free its resources |
download_environment_files |
Pull the whole sandbox filesystem as a .tar |
upload_environment_file |
Push a local file into a running sandbox |
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 · 238 lines · 9 tokens per session scan A b6c43fffe569
agent-antigravity is a skill published in the GitHub repository bgembalczyk/agent-antigravity-mcp (2 stars, last pushed 1mo ago), licensed MIT. It adds 9 tokens to every session and 3,740 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
skill-authoring
Author SKILL.md: frontmatter, structure, writing principles.
systematic-debugging
4-phase root cause debugging: understand bugs before fixing.
github-code-review
Review PRs: diffs, inline comments via gh or REST.
requesting-code-review
Pre-commit review: security scan, quality gates, auto-fix.
simplify-code
Sequential 3-lens cleanup of recent code changes.
test-driven-development
TDD: enforce RED-GREEN-REFACTOR, tests before code.