Coding agent

Antigravity CLI

Google's managed multi-agent terminal harness for consumer and enterprise workflows.

Status
Active
License
Proprietary binary distribution
Evidence
Documented, 23 sources
Product record checked
2026-08-22

At a glance

A proprietary terminal interface to Google's shared Antigravity agent harness, with a managed multi-provider model catalog, asynchronous subagents, structured headless output, SSH use, browser actions, MCP, plugins, skills, hooks, granular permissions, and optional native OS sandboxing.

Good choice if

  • Individual Gemini CLI users moving to Google's supported consumer terminal product
  • Terminal, SSH, or headless work that benefits from parallel background agents
  • Teams using a managed model catalog through Google AI plans or the Gemini Enterprise Agent Platform

Check before choosing

  • Model access is managed by Google plans or Google Cloud; the documentation does not offer BYOK endpoints or local-model execution
  • Native OS sandboxing is available but off by default, while workspace file reads and writes are auto-allowed by the permission engine unless stricter policy is configured
  • Since 1.1.9, a permission pattern accepted at a prompt persists for the rest of the conversation rather than one turn, so an interactive approval can become a session-scoped rule
See 5 more considerations
  • Always-proceed modes and one-command sandbox escapes can remove review or containment boundaries
  • Conversation rewind and fork operate on session history, not the local Git checkout, so they do not provide file rollback or worktree isolation
  • Telemetry is enabled by default and must be changed in settings when that collection is not desired
  • The public GitHub repository distributes releases and support material but does not expose the core harness source, engineering tests, security policy, or evaluation suite
  • Antigravity CLI 1.1.11 fixes zero-word command allowlists matching every command, auto-approval in strict or request-review modes, and startup MCP admin-control caching; older binaries should not be treated as having those corrections

Capability support

Documented first-class product support, checked against the sources below.

External tools (MCP)
DocumentedProduct-supported MCP integrationSource · checked 2026-07-28The source establishes the mechanism, not its quality or availability in every mode.
Reusable skills
DocumentedProduct-supported reusable skill packagesSource · checked 2026-07-28Support does not establish portability, package quality, safety, or adoption.
Local models
Not documentedNo first-class support established by the current recordAbsence of current documentation is not proof that the capability is impossible.
Agent parallelism
DocumentedDelegated or parallel agent workflowSource · checked 2026-07-28The source establishes the mechanism, not its quality or availability in every mode.
Runs without an open UI
DocumentedNon-interactive or automation surfaceSource · checked 2026-07-28The source establishes the mechanism, not its quality or availability in every mode.
Browser control
DocumentedBuilt-in or product-supported browser controlSource · checked 2026-07-28The source establishes the mechanism, not its quality or availability in every mode.
Isolated execution
OptionalOptional OS or container isolationSource · checked 2026-07-28The source establishes the mechanism, not its quality or availability in every mode.
Undo file changes
Not documentedNo first-class support established by the current recordAbsence of current documentation is not proof that the capability is impossible.

Getting started

Install the native Antigravity CLI, run `agy`, sign in with an eligible Google account or Google Cloud project, then choose permission and sandbox settings before delegated work.

Open official documentation

Classification and operating model

Category fit and technical mechanisms are evidence records, not product-quality scores.

Category fit
Qualifies, 4/4 criteria
Operating model
7/7 layers documented
Inspect category criteria and operating mechanismsFirst-party records

Why it qualifies as a coding harness

This confirms category fit, not product quality. Every required criterion links back to first-party evidence.

Qualifies4 of 4 required criteria evidenced
  • Adaptive agent loop

    Documented

    The system repeatedly observes results and chooses the next action instead of following a fixed one-pass graph.

  • Repository tool execution

    Documented

    The system can use tools to inspect and change a repository or its execution environment.

  • Task-aware context management

    Documented

    The runtime assembles, updates, compacts, retrieves, or persists task-relevant context while work proceeds.

  • Model-independent runtime control

    Documented

    Permissions, budgets, interruption, policy, or stop controls operate outside the model's own text generation.

Membership establishes category fit only. It does not score quality, safety, autonomy, model capability, or benchmark performance. · Read the membership rule.

How it works under the hood

Seven mechanisms mapped from first-party records. These labels describe what the harness provides, not how intelligent its model is.

7/7layers documented
  • Execution & isolationSandbox availableDocumented mechanism, not a performance score.
  • Tooling & integrationsExtensible + browserDocumented mechanism, not a performance score.
  • Context & stateManaged contextDocumented mechanism, not a performance score.
  • Lifecycle & recoverySession resumeDocumented mechanism, not a performance score.
  • ObservabilityStructured tracesDocumented mechanism, not a performance score.
  • VerificationTool-assistedDocumented mechanism, not a performance score.
  • Governance & permissionsPolicy controlsDocumented mechanism, not a performance score.

Measured and public context

Configuration-specific measurements and source-native activity stay separate from general product capability.

Inspect code audit, measured configurations, and ecosystem signalsContext, not a product score

Public code audit

Unrankedsupport-only repository
Security policy
Not found
CI workflow
Not found
Automated tests
Not found
Evaluation assets
Not found
Contributor documentation
Not found

The 1.1.8 public tree contains only 15 issue-template, changelog, README, demo, and customization-example files. It exposes no core harness source, license file, CI workflow, engineering tests, security policy, contributor guide, evaluation suite, or independently reproducible benchmark result.

Inspect commit 03e095ac3619462ecd0928f3f5470387dbda6a00, checked 2026-07-28

Measured configurations

No benchmark run passes the full metadata admission policy for this harness yet. Missing data is not scored as zero.

Benchmark policy and all runs
Context, not quality

Public ecosystem signals

Source-native observations for exact mapped artifacts and reviewed stable release trains. Different units and populations stay separate, and missing coverage is never treated as zero.

View this harness in Usage
  • Latest stable release1.1.27Released 2026-09-05; 37 stable releases in 90 daysOpen release
  • Homebrew 30d events6.98KCask: antigravity-cliOpen artifact
  • Release asset downloads135.64K41 stable releases; 246 matched assetsOpen artifact
  • GitHub stars2.2KSupport repository; 200 forksOpen artifact

Routing, package retrievals, release downloads, editor installs, and repository interest observe different populations. They are never added together and never affect capability evidence, classification, or measured results.

Interpretation rulesSignals checked

First-party evidence

Each capability claim links to the first-party record that supports it.

23 first-party sourcesProduct record checked

Execution and control

3 sources
View 2 more sources

Agents, state and recovery

2 sources
View 1 more source

Automation and extensions

2 sources
View 1 more source

Additional first-party sources

16 sources
View 15 more sources