Treating Code Search as a Contract: Measuring the /codesearch Regex Default
Antigravity CLI 1.1.3 interprets /codesearch queries as regular expressions by default. I measured the gap between regex and literal matching across a 979-article repository and turned the results into three query rules and a drift harness.
I Changed One Line in AGENTS.md and Broke the Agent — Regression-Testing the Instructions Themselves
Every time you edit the instructions you hand an agent — AGENTS.md, skill text — some other task quietly breaks. Here is a regression harness whose subject is the instructions, not the code: fixed tasks, deterministic assertions, and a way to wire it into unattended runs.
Handing Off IDE Work to the Chat Agent: Passing Context Through a File After the Two-App Split
Since Antigravity 2.0 split into an IDE and a chat-style agent app, context you build up in one does not carry into the other. Here is a file-based approach that makes a single file in your repo the source of truth for handoff, with a schema, a validation script, and a way to pin it with a Guide skill.
Faster Substring Search Changes How You Should Let Agents Explore Code
The 6/26 update made substring search noticeably faster. Rather than treating it as a comfort improvement, here is how to redesign the way agents explore code, budget context, and verify their targets, with measurements from indie development.
Running Xcode 27's Agent and Antigravity Side by Side: Designing the Work Boundary for iOS
With Xcode 27 bringing agentic coding into the IDE itself, iOS development now has two code-writing agents over one repository. Here is a practical design for keeping a single source of truth and splitting work across spec, implementation, and verification.
Stop Letting Antigravity Agents Self-Report 'Done' — Completion Contracts and External Verification
An Antigravity agent reporting 'done' when the work was not actually finished is a failure mode I kept hitting. Moving the completion decision out of the agent and into code fixed it. Here is the contract, a three-layer verifier, and how it holds up under unattended, scheduled runs.
Giving AI Agents an Aesthetic Sense — Building a UI Quality Evaluation Pipeline with Antigravity × Gemini Vision
Explore how to encode the vague judgment of 'is this UI good or bad' into code. Combines Antigravity with Gemini Vision to implement a complete pipeline — from screenshot capture to AI evaluation, improvement suggestions, automated fixes, and CI/CD integration.
Designing Antigravity's Architect / Builder Mathematically — Agent Design Through the Lens of Search, Classification, and Inference
Antigravity's Architect/Builder split looks suspiciously like the math behind search engines and classifiers. Here is a way to think about agent design using the language of weighting, candidate pruning, and probability — for more stable, reproducible agents.
Building Multi-Agent Systems with AgentKit 2.0 in Antigravity — A Production Implementation Guide
AgentKit 2.0 dropped the barrier to multi-agent systems sharply. After implementing three different agent-coordination patterns in Antigravity, here's the design playbook covering decisions, traps, and production operation.
Implementing Antigravity's A2A Protocol — Practical Patterns for Agent-to-Agent Conversation
A hands-on guide to Antigravity's A2A (Agent-to-Agent) protocol. Walks through the minimal two-agent setup and three real-world patterns — fire-and-forget, bidirectional confirmation, and scatter-gather — with runnable samples.
Production Multi-Agent Systems with Antigravity AgentKit 2.0: Patterns, Failure Modes, and What the Demos Don't Show
AgentKit 2.0 makes multi-agent systems look effortless in demos, but running them in production is a different problem. This guide covers Planning vs. Fast mode, three real orchestration patterns, and the failure modes — infinite loops, cost blowouts, prompt injection — that bite on day one.
Building a Multi-Agent System in Antigravity — Manager Surface, Role Delegation, and Gemma 4
One agent trying to do everything hits a ceiling. Designing and implementing multi-agent systems on Antigravity's Manager Surface: role delegation, three architectural patterns, and pairing with Gemma 4.