Delegate file analysis to the Antigravity CLI (Gemini) instead of reading files yourself. USE THIS whenever a file is large (>200 lines) or the task spans more than 3 files: logs, database dumps, generated code, cross-file reviews, comparisons. The files never enter your context — only the answer does.

Delegate codebase archaeology to the Antigravity CLI: git log/diff/blame spelunking, wide greps across a repo, 'when/why did X change', 'where is Y used'. USE THIS instead of running many search commands yourself — it saves your context.

Delegate a web/documentation lookup to the Antigravity CLI (Gemini with web access): library docs, API references, error messages, current versions, external knowledge. USE THIS when you need information you don't have or that may be newer than your training data.

Get an adversarial second opinion from a different model family (Gemini Pro). ALWAYS use this for plan critiques, design reviews, and pre-merge code review: it hunts for flaws, edge cases, security issues, and unstated assumptions you may have missed. Pass either content or files — a call with neither is rejected. Pass schema to get ranked findings back as data instead of prose.

Continue a previous Antigravity session by session_id (returned by every other tool). USE THIS for follow-up questions about a prior delegation — the full prior context is already on agy's side, so you don't resend anything. Pass model to get a second opinion on the same history from a different model without re-sending it. Read-only by default; pass write: true to rework a delegation that edited files.

Raw delegation to the Antigravity CLI for heavy tasks that don't fit the other tools. Read-only by default; pass write: true to let agy edit files, sandbox: true to confine it. Anything it was refused comes back as a denied-actions note.

Fan one question out to several models at once (a council, with a disagreement report), or fan several sub-tasks out to one model. Runs behind the same concurrency cap as everything else, so it queues rather than stampedes the shared quota.

Choose the model and reasoning tier every tool uses from now on, on this machine. Ask the user first — "proceed with the default, or change model or effort?" — then call this once: with no arguments to accept the default, or with what they chose. The choice is saved and no tool asks again. An explicit model argument on a call still wins for that call. Set AGY_ASK_MODEL=false to skip the gate and route on the built-in chains.

What this bridge has spent and what it can still do: tokens by model, live quota cooldowns, runs in flight, the resolved model chain per tool, the user's set_model choice, the models agy offers, warm sessions, and the agy version and flags detected at startup. Check this before a large fan-out, or to list models before set_model.