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Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
AGY_BINNoFull path to the agy binary if it is not reliably on PATH.
AGY_BRIDGE_REPONoCustom owner/repo for the update check, e.g. 'SinanTufekci/antigravity-intern'.
AGY_BRIDGE_DEBUGNoSet to '1' to enable debug logging to stderr.
AGY_WATCH_WINDOW_SIZENoWindow size for watch mode in format 'width,height', e.g. '560,760'.
AGY_BRIDGE_NO_UPDATE_CHECKNoSet to '1' to skip the update check at startup.

Capabilities

Features and capabilities supported by this server

CapabilityDetails
tools
{
  "listChanged": true
}
logging
{}
prompts
{
  "listChanged": false
}
resources
{
  "subscribe": false,
  "listChanged": false
}
extensions
{
  "io.modelcontextprotocol/ui": {}
}
experimental
{}

Tools

Functions exposed to the LLM to take actions

NameDescription
antigravity_askA

Ask Antigravity (Gemini 3.5 Flash High via agy CLI) a question in a NEW conversation.

Uses your existing AI Pro authentication (silent-auth via Windows Credential Manager). Returns the model's final response as text.

Model is fixed to Gemini 3.5 Flash (High) — agy print-mode hardcodes it. Good for fast tool-calling and short tasks; for heavier reasoning prefer the host model directly.

antigravity_continueA

Continue the Antigravity conversation rooted at this workspace.

Resumes the exact conversation id recorded for workspace (via agy's --conversation flag), not agy's global "most recent", so it stays correct even if agy was used elsewhere in between.

antigravity_imageA

Generate an image with Antigravity (Gemini image model via agy CLI).

Drives agy to produce a raster image on your existing AI Pro quota, saves it, and returns the absolute file path plus its real format and byte size. The host can then read the path to view the image.

agy picks the image format itself (JPEG for photo-like images, PNG for flat graphics), so the returned path's extension is corrected to match the actual bytes (a requested out.png may come back as out.jpg). Runs a normal, unsandboxed agy session — same privileges/caveats as the other tools (see the module SECURITY note).

antigravity_swarmA

Run several Antigravity (Gemini 3.5 Flash High) prompts IN PARALLEL.

Fans the prompts out to independent agy workers that run truly concurrently (each in its own isolated state dir, so they never race), capped at max_concurrency. Returns one combined text block with every worker's answer, labelled by index. A worker that fails is reported in place — the others still return (error isolation).

Use this to parallelise independent, cheap sub-tasks (e.g. summarise N files, ask the same question about N repos). For a single prompt use antigravity_ask.

SECURITY: this launches N unsandboxed agy agents at once — N times the prompt-injection surface of a single call (see the module SECURITY note). Only use it with trusted prompts on trusted content.

antigravity_image_swarmA

Generate several images IN PARALLEL with Antigravity (one worker per prompt).

Like antigravity_image, but runs N image generations concurrently in isolated workers (capped at max_concurrency). Returns one block listing each image's final path/format/size (or its error). Extensions are corrected to the real bytes, exactly like antigravity_image. Same unsandboxed privileges/caveats as antigravity_swarm.

antigravity_statusA

Report diagnostics for the agy bridge setup (spends no AI Pro quota).

Reports the bridge's own version and whether a newer release is available (best-effort GitHub check; honors AGY_BRIDGE_NO_UPDATE_CHECK), then checks whether agy is on PATH (and its version/compat), whether agy's state directories exist, whether the newest conversation transcript is readable, and whether the SQLite conversation store is present. Use this to debug empty or failed responses — or to see if the bridge itself is out of date — before spending quota.

Prompts

Interactive templates invoked by user choice

NameDescription

No prompts

Resources

Contextual data attached and managed by the client

NameDescription

No resources

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