Antigravity provider

Antigravity supports local probing of either the IDE or the CLI (agy / antigravity-cli) language server, plus Google OAuth-backed remote usage. The OAuth path can store multiple Google accounts through the shared token-account switcher.

OAuth account switching

• Login still uses Antigravity's Google OAuth client, discovered from Antigravity.app or overridden with ANTIGRAVITY_OAUTH_CLIENT_ID and ANTIGRAVITY_OAUTH_CLIENT_SECRET.
• A successful login writes the latest shared credentials to ~/.codexbar/antigravity/oauth_creds.json and upserts a token-account entry for the Google account.
• Each token-account entry stores serialized AntigravityOAuthCredentials and is injected into remote fetches through ANTIGRAVITY_OAUTH_CREDENTIALS_JSON.
• When a token account is selected, the OAuth fetcher uses that account before falling back to the shared credentials file.
• The menu action is labeled Add Account...; switching between saved accounts uses the existing segmented/stacked token-account menu UI.

Remote OAuth data sources

• POST https://cloudcode-pa.googleapis.com/v1internal:loadCodeAssist
• POST https://cloudcode-pa.googleapis.com/v1internal:onboardUser
• POST https://cloudcode-pa.googleapis.com/v1internal:fetchAvailableModels
• POST https://cloudcode-pa.googleapis.com/v1internal:retrieveUserQuota

Local data sources + fallback order

Data sources + fallback order

1. Process detection

   • Command: ps -ax -o pid=,command=.
   • Match either:
     • the IDE language server: process name language_server_macos plus Antigravity markers (--app_data_dir antigravity OR path contains /antigravity/); or
     • the CLI: an antigravity-cli / antigravity_cli path segment, or the agy binary (path-anchored so unrelated arguments/binaries do not match).
   • Extract CLI flags:
     • --csrf_token <token>. Requirement depends on the match kind:
       • IDE matches still require it — a tokenless IDE language_server match is skipped so a later valid IDE server can be found, otherwise missingCSRFToken is reported (unchanged behavior).
       • CLI matches accept an empty token, because the CLI's language server exposes no --csrf_token flag and requires none.
     • --extension_server_port <port> (HTTP fallback; IDE only).

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