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Antigravity provider notes: local LSP probing, port discovery, quota parsing, and UI mapping.
Adding or modifying the Antigravity provider
Debugging Antigravity port detection or quota parsing
Adjusting Antigravity menu labels or model mapping

Antigravity provider

Antigravity is a local-only provider. We talk directly to the Antigravity language server running on the same machine.

Data sources + fallback order

  1. Process detection

    • Command: ps -ax -o pid=,command=.
    • Match process name: language_server_macos plus Antigravity markers:
      • --app_data_dir antigravity OR path contains /antigravity/.
    • Extract CLI flags:
      • --csrf_token <token> (required).
      • --extension_server_port <port> (HTTP fallback).

  2. Port discovery

    • Command: lsof -nP -iTCP -sTCP:LISTEN -p <pid>.
    • All listening ports are probed.

  3. Connect port probe (HTTPS)

    • POST https://127.0.0.1:<port>/exa.language_server_pb.LanguageServerService/GetUnleashData
    • Headers:
      • X-Codeium-Csrf-Token: <token>
      • Connect-Protocol-Version: 1
    • First 200 OK response selects the connect port.

  4. Quota fetch

    • Primary:
      • POST https://127.0.0.1:<connectPort>/exa.language_server_pb.LanguageServerService/GetUserStatus
    • Fallback:
      • POST https://127.0.0.1:<connectPort>/exa.language_server_pb.LanguageServerService/GetCommandModelConfigs
    • If HTTPS fails, retry over HTTP on extension_server_port.

Request body (summary)

  • Minimal metadata payload:
    • ideName: antigravity
    • extensionName: antigravity
    • locale: en
    • ideVersion: unknown

Parsing and model mapping

  • Source fields:
    • userStatus.cascadeModelConfigData.clientModelConfigs[].quotaInfo.remainingFraction
    • userStatus.cascadeModelConfigData.clientModelConfigs[].quotaInfo.resetTime
  • Mapping priority:
    1. Claude (label contains claude but not thinking)
    2. Gemini Pro Low (label contains pro + low)
    3. Gemini Flash (label contains gemini + flash)
    4. Fallback: lowest remaining percent
  • resetTime parsing:
    • ISO-8601 preferred; numeric epoch seconds as fallback.
  • Identity:
    • accountEmail and planName only from GetUserStatus.

UI mapping

  • Provider metadata:
    • Display: Antigravity
    • Labels: Claude (primary), Gemini Pro (secondary), Gemini Flash (tertiary)
  • Status badge: Google Workspace incidents for the Gemini product.

Constraints

  • Internal protocol; fields may change.
  • Requires lsof for port detection.
  • Local HTTPS uses a self-signed cert; the probe allows insecure TLS.

Key files

  • Sources/CodexBarCore/Providers/Antigravity/AntigravityStatusProbe.swift
  • Sources/CodexBar/Providers/Antigravity/AntigravityProviderImplementation.swift