The prompt enhancer for Antigravity
Google Antigravity runs agents on your codebase — and the agent is only as good as the brief you hand it. Press ⌘⇧P on your rough task description and PromptAI rewrites it into a structured agent brief with scope, constraints, and verification steps, right in Antigravity's input.
Free to try on macOS 12+. The same ⌘⇧P hotkey also works in Claude Code, Cursor, VS Code, and any native Mac text input.
Same engine as the Antigravity integration — try it right here, then install it where you work.
What is an Antigravity prompt enhancer?
An Antigravity prompt enhancer turns the task you'd type into Antigravity's agent manager — usually one hurried sentence — into a structured mission brief: what to build, which files are in scope, what must not change, and how the agent should verify its own work. PromptAI's Mac desktop app does this with a global ⌘⇧P hotkey: highlight your draft inside Antigravity, press the hotkey, and the structured brief replaces it in place.
Briefs matter more in Antigravity than in a normal chat because of how the product works. Antigravity's agents plan, edit multiple files, run commands, and produce artifacts across an entire task before you review the result. A vague brief doesn't produce one bad paragraph — it produces a wandering multi-step run: touched files you didn't want touched, an implementation plan solving the wrong problem, and a quota-consuming session you throw away.
The enhanced brief front-loads exactly what an autonomous agent needs and can't infer: the goal stated precisely, the file scope, the stack constraints, the definition of done, and the verification step. You still write it in plain language — the enhancer adds the structure.
Built for how Antigravity actually works
Antigravity is agent-first: you write briefs, agents execute. These are the moments where a structured brief changes the outcome.
Agent manager tasks
The main surface: you describe a task, an agent plans and executes it. Enhanced briefs pin down scope and the definition of done, so the plan the agent proposes matches the task you actually meant.
Multi-file implementations
Agents will happily touch any file that seems related. A structured brief names the files in scope and — just as important — the ones that are off-limits, keeping diffs small enough to review.
Bug fixes with repro steps
"Fix the login bug" sends an agent hunting. An enhanced brief carries the repro steps, the expected behavior, and the constraint that the fix must not change public interfaces — so the agent debugs instead of guessing.
Verification and artifacts
Antigravity agents produce artifacts — plans, walkthroughs, test results — as evidence of their work. A brief that states how to verify (run these tests, check this route) gets you evidence you can actually trust.
Before and after: real Antigravity prompts
Feature implementation brief
add dark mode to the settings page
You are implementing a feature in a Next.js 15 + Tailwind app. Task: add a dark mode toggle to the settings page. Scope: src/app/settings/, src/components/ThemeToggle.tsx (new), and the root layout for the theme provider only — do not touch other pages or global styles beyond CSS variables. Requirements: persist the choice in localStorage, respect prefers-color-scheme on first visit, no flash of wrong theme on load. Definition of done: toggle works on settings, choice survives reload, all existing pages render correctly in both themes. Verify by running the dev server and checking the settings, home, and dashboard routes in both modes.
Bug fix with repro
fix the bug where the export button doesnt work
You are debugging a production issue. Bug: clicking 'Export CSV' on the reports page does nothing. Repro: log in, open /reports, select any date range, click Export CSV — no download starts and no error shows. Expected: a CSV of the filtered rows downloads. Constraints: do not change the export API contract or add new dependencies; if the root cause is server-side, document it in the walkthrough rather than patching around it client-side. Definition of done: export downloads correct data for at least two different date ranges, with a note explaining the root cause.
Scoped refactor
clean up the api client code
You are refactoring for maintainability, not behavior change. Task: consolidate the duplicated fetch logic in src/lib/api/ into a single request helper with typed errors. Scope: src/lib/api/ only — call sites may be updated to the new helper signature but their behavior must be identical. Constraints: no new dependencies, keep the public function names stable, preserve existing error messages users see. Definition of done: one shared request helper, zero duplicated fetch blocks, all call sites migrated, and the app builds with no type errors. Verify with the build and a manual check of one authenticated and one unauthenticated request.
Set up in under a minute
Download the Mac app
Install PromptAI for macOS from promptai360.com/download. Free to try, no credit card for the trial.
Draft the task in Antigravity
Write the task in Antigravity's input the way you'd tell a teammate. Then highlight what you wrote.
Press ⌘⇧P
The structured agent brief replaces your draft in place. Adjust the scope if needed, then hand it to the agent.
Frequently asked questions
What is an Antigravity prompt enhancer?
It's a tool that rewrites your rough task description into a structured agent brief — goal, file scope, constraints, definition of done, and verification steps — before Antigravity's agent starts executing. PromptAI does this via a global ⌘⇧P hotkey on macOS that works directly inside Antigravity's input fields.
Why do Antigravity agents need structured briefs?
Because agents execute multi-step plans autonomously before you review the result. In a chat, a vague prompt costs you one bad answer; in Antigravity, it costs a full run — wrong files touched, a plan aimed at the wrong problem, and consumed quota. Front-loading scope and constraints is the highest-leverage minute in an agentic workflow.
How does the hotkey work inside Antigravity?
PromptAI's ⌘⇧P operates at the OS level on whatever text is selected. Highlight your draft in Antigravity's agent input, press ⌘⇧P, and the enhanced brief replaces the selection in place. Antigravity's own shortcuts are untouched, and no copy-paste round trip is needed.
Does it preserve Antigravity-specific context like file mentions?
Yes. File paths and references in your draft are preserved and woven into the structured brief — typically into the scope section, where they do the most good. You don't lose anything you typed; you gain the scaffolding around it.
Does PromptAI work in other coding tools too?
Yes. The same ⌘⇧P hotkey works in Claude Code, Cursor, VS Code, Warp, Ghostty, iTerm, and any native macOS text input. One app covers your whole agentic toolchain — there are dedicated guides for Claude Code and Cursor.
Is PromptAI free to use with Antigravity?
The Mac app is free to download with a 5-day trial, and the generator on this page runs free with no login so you can see the output quality first. Paid plans start at $7.99/month for unlimited enhancements.
Does PromptAI see my code?
Only the text you highlight and enhance — typically your task description, not your codebase. That text goes to the enhancement model only, is never used for training, and is never shared. PromptAI keeps enhancement counts for billing, not content.
Related reading
Try it on your next Antigravity prompt
Free to try on macOS 12+. The same ⌘⇧P hotkey also works in Claude Code, Cursor, VS Code, and any native Mac text input.