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Tools2026-07-29 · source-backed
Google made Gemini 3.6 Flash the default for the antigravity-preview managed agent with no code changes, and added environment hooks that run custom scripts around tool calls: pre_tool_execution can block with a denial reason, post_tool_execution can enforce validation like linting, both with regex matchers and command-line or HTTP handlers. Also new: a max_total_tokens budget cap with resumable interactions, cron triggers, and an Environments API for programmatic sandbox management. AI investment bank OffDeal uses post-execution hooks for pixel-level logo validation before deck publication, which is a delightfully specific use of a generic hook.
Each link below shares sources, entities, or timing with this story.
Antigravity built by Google / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Antigravity built by Google); both cover Flash, Gemini, Gemini API, Google; reported by the same outlet (blog.google).
Microsoft competes with Google / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Microsoft competes with Google); both cover Flash, Gemini, Google; reported by the same outlet (blog.google).
Google released Search / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Google released Search); both cover Flash, Gemini, Google; reported by the same outlet (blog.google).
Antigravity built by Google / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Antigravity built by Google); both cover Flash, Gemini, Google; overlapping topics (chang, gemini).
DeepMind built by Google / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (DeepMind built by Google); both cover Flash, Gemini, Google; overlapping topics (call, code, gemini).
Google released Chrome / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Google released Chrome); both cover Flash, Gemini, Google; overlapping topics (agent, call, gemini).
Antigravity built by Google / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Antigravity built by Google); both cover Flash, Gemini, Google; overlapping topics (agent, code, gemini).
Google released AI Studio / Shared entities / Earlier coverage
Linked by a graph relationship (Google released AI Studio); both cover Flash, Gemini, Gemini API, Google; earlier Flash coverage from 2026-07-01.