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Changelog

[1.3.1] - 2026-01-21

Added

  • New google_search tool for web search - Implements Google Search grounding as a callable tool that the model can invoke explicitly
    • Makes separate API calls with only { googleSearch: {} } tool, avoiding Gemini API limitation where grounding tools cannot be combined with function declarations
    • Returns formatted markdown with search results, sources with URLs, and search queries used
    • Supports optional URL analysis via urlContext when URLs are provided
    • Configurable thinking mode (deep vs fast) for search operations
    • Uses gemini-3-flash model for fast, cost-effective search operations

Changed

  • Upgraded to Zod v4 and adjusted schema generation for compatibility
  • Deprecated web_search config - The web_search.default_mode and web_search.grounding_threshold config options are now deprecated. Google Search is now implemented as a dedicated tool rather than automatic grounding injection

Fixed

  • keep_thinking=true now works without debug mode - Fixed Claude multi-turn conversations failing with "Failed to process error response" when keep_thinking=true after tool calls, unless debug mode was enabled

    • Root cause: filterContentArray trusted any signature >= 50 chars for last assistant messages, but Claude returns its own signatures that Antigravity doesn't recognize
    • Fix: Now verifies signatures against our cache via isOurCachedSignature() before passing through. Foreign/missing signatures get replaced with SKIP_THOUGHT_SIGNATURE sentinel
    • Why debug worked: Debug mode injects synthetic thinking with no signature, triggering sentinel injection correctly

  • Fixed tool calls failing for tools with no parameters - Tools like hive_plan_read, hive_status, and hive_feature_list that have no required parameters would fail with Zod validation error state.input: expected record, received undefined

    • Root cause: When Claude calls a tool with no parameters, it returns functionCall without an args field. The response transformation only processed parts where functionCall.args was defined, leaving args as undefined
    • Fix: Changed condition to handle all functionCall parts, defaulting args to {} when missing, ensuring opencode's state.input always receives a valid record

  • Auth headers aligned with official Gemini CLI - Updated authentication headers to match the official Antigravity/Gemini CLI behavior, reducing "account ineligible" errors and potential bans (#178)

    • GEMINI_CLI_HEADERS["User-Agent"]: 9.15.1 → 10.3.0
    • GEMINI_CLI_HEADERS["X-Goog-Api-Client"]: gl-node/22.17.0 → gl-node/22.18.0
    • ANTIGRAVITY_HEADERS["User-Agent"]: Updated to full Chrome/Electron user agent string
    • Token exchange now includes Accept, Accept-Encoding, User-Agent, X-Goog-Api-Client headers
    • Userinfo fetch now includes User-Agent, X-Goog-Api-Client headers
    • fetchProjectID now uses centralized constants instead of hardcoded strings

  • quiet_mode now properly suppresses all toast notifications - Fixed quiet_mode: true in antigravity.json not suppressing "Status dialog dismissed" and other toast notifications (#207)

    • Root cause: The showToast helper function didn't check quietMode, and only some call sites had manual !quietMode && guards
    • Fix: Moved quietMode check inside showToast helper so all toasts are automatically suppressed when quiet_mode: true

Removed

  • Removed automatic googleSearch injection - Previously attempted to inject { googleSearch: {} } into all Gemini requests, which never worked due to API limitations. Now uses the explicit tool approach instead

[1.3.0] - Previous Release

See releases for previous versions.