Ask Antigravity
Pull a second opinion from Google Antigravity (agy) into Claude while you review or debug code.
Overview
io.github.Lykhoyda/ask-antigravity is a MCP server for the Ship phase that forwards review prompts from your agent to Google’s Antigravity (agy) CLI and returns the second opinion over stdio.
What is this MCP server?
- Stdio MCP package ask-antigravity-mcp (npm) bridging Claude to the Antigravity agy CLI
- Configurable ASK_ANTIGRAVITY_TIMEOUT_MS (default 300000 ms / 5 minutes)
- ASK_ANTIGRAVITY_SANDBOX toggle (default on) to relax agy --sandbox when --add-dir context reads fail
- GMCPT_LOG_LEVEL for debug, info, warn, or error verbosity
- Repository: github.com/Lykhoyda/ask-llm at server version 0.2.1
- Default review timeout 300000 ms (5 minutes)
- Default ASK_ANTIGRAVITY_SANDBOX=1 (sandbox on)
Community signal: 10 GitHub stars.
What problem does it solve?
One agent can sound confident while missing regressions, so you need a fast way to ask another toolchain for a review without copy-pasting into a separate app.
Who is it for?
Indie builders already using Antigravity who want MCP-native AI-to-AI review from Claude Code or Cursor during pre-merge checks.
Skip if: Teams that do not install or license Antigravity/agy, or anyone who only needs inline linting without a second CLI runtime.
What do I get? / Deliverables
After you register the server, Claude (or another MCP host) can invoke agy for code review and second opinions with configurable timeout and sandbox behavior.
- MCP tools that dispatch review prompts to agy and return responses to your agent
- Tunable long-running review runs via ASK_ANTIGRAVITY_TIMEOUT_MS
- Optional sandbox relaxation via ASK_ANTIGRAVITY_SANDBOX when workspace context is blocked
Recommended MCP Servers
Journey fit
How it compares
MCP bridge to an external review CLI, not an in-repo agent skill or static checklist.
Common Questions / FAQ
Who is io.github.Lykhoyda/ask-antigravity for?
Solo and small-team builders who use Claude with MCP and want Antigravity (agy) as a second reviewer on the same machine.
When should I use io.github.Lykhoyda/ask-antigravity?
Use it during Ship review (or late Build debugging) when you want a second model’s take on a patch, design, or failure before you merge or deploy.
How do I add io.github.Lykhoyda/ask-antigravity to my agent?
Install the npm package ask-antigravity-mcp, add a stdio MCP server entry in Claude Code, Cursor, or another MCP client, and ensure agy is on PATH with optional ASK_ANTIGRAVITY_TIMEOUT_MS and ASK_ANTIGRAVITY_SANDBOX set.