{ "data": { "a": { "slug": "antigravity-cli", "name": "Antigravity CLI", "vendor": "Google", "vendorUrl": "https://antigravity.google", "kind": "harness", "category": "agent-harnesses", "summary": "Google's terminal agent for coding tasks, distributed as a closed-source binary and installed as agy. It replaces Gemini CLI for consumer accounts.", "url": "https://www.anchorterminal.com/tools/antigravity-cli", "markdownUrl": "https://www.anchorterminal.com/tools/antigravity-cli.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/antigravity-cli.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json", "dns": "antigravity-cli.grade.anchorterminal.com", "repo": "https://github.com/google-antigravity/antigravity-cli", "license": "Proprietary. The repository holds the README, changelog and examples, with no source and no licence file. Use is under the Google Antigravity Additional Terms of Service, the Google Terms of Service and the Privacy Policy", "transports": [], "packages": [], "auth": "mixed", "authNotes": "Sign in with a Google account in the browser, which uses the operating system keyring, or pick the Business account option for Gemini Enterprise through Google Cloud sign-in, workforce identity federation or Application Default Credentials. Alternatively set modelProvider to gemini in ~/.gemini/antigravity-cli/settings.json and export GEMINI_API_KEY. The terms treat access through third-party software with Antigravity OAuth as a breach.", "pricing": "freemium", "pricingNotes": "Free to install. A $0 individual plan needs no subscription and has a weekly quota, with Gemini Flash and other models. Google AI Pro costs $20 a month and Ultra $100 or $200 a month (announced 19 May 2026). Enterprise Standard or Plus seats start at $30 a seat a month, or pay-as-you-go with no seat fee at consumption rates. Checked 10 October 2026.", "priceSummary": "Freemium", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs pages, the pricing page, the plans page, the README or the changelog (checked 2026-10-10).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-10" }, "docsUrl": "https://antigravity.google/docs/cli/overview", "llmsTxt": "https://antigravity.google/llms.txt", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "official", "harness", "coding-agent", "cli", "closed-source", "mcp", "llms-txt", "sandbox-default", "telemetry-opt-out", "subagents", "hooks", "plugins", "paid-plans", "gemini-models", "third-party-models" ], "lastRelease": "2026-10-30", "graded": true, "anchor": { "graded": true, "score": 54.7, "grade": "C", "agentReady": false, "rank": 894, "ranked": true, "rankOf": 1486, "categoryRank": 34, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 78, "maintenance": 68, "payments": 30, "reliability": 43, "schema": 78, "security": 53, "transparency": 55 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-04" }, "negative": -3, "negativeNotes": [ "-3, released fixes of the CLI's own described flaws with no advisory. 1.4.7 (tag 24 October 2026) fixed plugin MCP servers that sign in with OAuth \"being able to use a token saved by another user of the same computer account\", and 1.3.4 (13 October) fixed \"Always allow\" rules from a Remote Control session still applying after the user removed them. Neither entry cites an advisory, and NVD has no CVE for Antigravity on 4 November. One folded term. https://github.com/google-antigravity/antigravity-cli/blob/main/CHANGELOG.md" ], "verdict": "Google's terminal agent, a closed-source binary whose default Auto mode runs commands in a terminal sandbox on macOS, Linux and Windows 11, with documented headless JSON output. Interactions are collected for Google product improvement unless users opt out, a headless run exits 0 when a tool is denied, and 1.4.7 fixed a cross-user token flaw without an advisory.", "bestFor": "Developers on Google AI plans or Gemini Enterprise who want a terminal agent with a sandbox on by default and access to several model families, depending on plan.", "strengths": [ "Auto mode, the default for personal accounts, runs commands in a sandbox that hides ~/.ssh, .env, ~/.docker and ~/.kube and limits network access to approved domains", "Headless `agy -p` runs with `--output-format json` or `stream-json`, a status field, a `finished_reason` for cut-off turns and token usage in the result event", "MCP clients for stdio, Streamable HTTP, SSE and WebSocket servers, with unconfigured MCP tools set to ask first and allow rules by server and tool", "Skills, subagents, PreToolUse, PostToolUse and PreInvocation hooks, and plugins from an official marketplace that `/plugin` manages", "56 tagged releases between 6 August and 30 October 2026, each with a changelog entry" ], "weaknesses": [ "Closed source. The repository holds the README, changelog and examples, with no source and no licence file", "Interactions are used to improve Google and Alphabet products and models, and Google staff and contractors may review them, unless the user opts out", "Auto mode approves file edits and commands its reviewer judges safe without asking the user", "A headless run exits 0 when a tool that needs approval is refused, and the only sign is a notice on stderr", "Security fixes such as 1.4.7's cross-user OAuth token fix ship as changelog lines with no advisory" ], "agentNotes": [ "Read the `status` and `finished_reason` fields from `--output-format json` and read stderr too. A tool refused for lack of approval still exits 0", "Pre-approve each shell command and tool a headless run needs with `action(target)` rules under `permissions.allow` in ~/.gemini/antigravity-cli/settings.json, because headless runs cannot ask", "Export `GEMINI_API_KEY` after setting modelProvider to gemini. The CLI won't start when the key is missing, and setting the variable alone has no effect", "Turn off Enable Telemetry in /config before running on private repositories if Interactions should not be used for product improvement", "Grant sandbox access to ~/.docker or ~/.kube explicitly since 1.4.6 if a task needs Docker or Kubernetes credentials" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 54.7 } ], "editorialScores": { "ergonomics": 78, "maintenance": 68, "payments": 30, "reliability": 43, "schema": 78, "security": 53, "transparency": 56 }, "provenanceScore": 54, "checked": { "categories": { "ergonomics": "2026-11-04", "maintenance": "2026-11-04", "payments": "2026-11-04", "reliability": "2026-11-04", "schema": "2026-11-04", "security": "2026-11-04", "transparency": "2026-11-04" }, "last": "2026-11-04", "lastMoved": "2026-11-04", "oldest": "2026-11-04", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "curl -fsSL https://antigravity.google/cli/install.sh | bash", "headless": { "run": "agy -p \"fix the failing test\" --output-format json" } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/antigravity-cli" }, "area": "frameworks", "provenance": { "legalEntity": "Google LLC", "domain": "antigravity.google", "domainRegistered": "", "endpointOnVendorDomain": null, "terms": "https://antigravity.google/terms", "privacy": "https://policies.google.com/privacy", "statusPage": "", "changelog": "https://antigravity.google/docs/changelog/", "securityTxt": "none", "checked": "2026-11-04", "notes": [ "The legal entity is taken from the google.com check on the Gemini CLI listing. The Antigravity terms name Google without an entity.", "antigravity.google serves no security.txt (both /.well-known/security.txt and /security.txt answered 404 on 10 October 2026). google.com has a valid one, with reports to g.co/vulnz.", "No status page for the CLI was found in the docs, and the domain's registration date was not read." ], "score": 54 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/antigravity-cli.json", "live": { "slug": "antigravity-cli", "versions": [ { "registry": "github", "name": "google-antigravity/antigravity-cli", "version": "1.5.2", "released": "2026-11-06", "seenAt": "2026-11-06T23:06:22.003737043Z" } ], "githubStars": 2743, "securityTxt": { "url": "https://antigravity.google/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:01:57.286210579Z" }, "llmsTxt": { "url": "https://antigravity.google/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:31:33.738667448Z" }, "domain": { "domain": "antigravity.google", "registered": "2025-09-19", "source": "https://pubapi.registry.google/rdap/domain/antigravity.google", "checkedAt": "2026-11-01T14:24:36.039961987Z" }, "pages": [ { "url": "https://antigravity.google/docs/changelog/", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-07T13:59:08.922850634Z", "changedAt": "2026-11-07T13:59:08.922850634Z", "fingerprint": "e3d578a88ecc" }, { "url": "https://antigravity.google/docs/models", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-07T13:59:11.921447369Z", "changedAt": "2026-11-07T13:59:11.921447369Z", "fingerprint": "7786c4ba2d38" }, { "url": "https://raw.githubusercontent.com/google-antigravity/antigravity-cli/main/CHANGELOG.md", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-07T14:21:09.894633687Z", "changedAt": "2026-11-07T14:21:09.894633687Z", "fingerprint": "76baa5502b2a" }, { "url": "https://policies.google.com/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:16:57.603449406Z", "changedAt": "2026-10-22T01:23:23.175034112Z", "fingerprint": "b76b38d8ae56" }, { "url": "https://antigravity.google/terms", "kind": "terms", "status": 200, "checkedAt": "2026-11-07T13:59:13.229617485Z", "changedAt": "2026-11-07T13:59:13.229617485Z", "fingerprint": "53ce6ac7d918" } ], "github": { "repo": "google-antigravity/antigravity-cli", "checkedAt": "2026-11-02T08:51:28.468421471Z", "stars": 2684, "archived": false, "issuesEnabled": true, "pushedAt": "2026-10-30T21:56:06Z", "openIssues": 802, "openPRs": 19, "issuesOpened90d": 630, "issuesClosed90d": 398, "prsMerged90d": 3, "replies": { "sampled": 16, "unanswered": 12, "medianDays": 0.1 } }, "updatedAt": "2026-11-07T16:01:57.286210579Z" } }, "answer": "Antigravity CLI scores 54.7 (C) on agent readiness against T3 Code's 51.9 (D), and leads in 4 of 7 scored categories. T3 Code leads on payments \u0026 pricing and maintenance \u0026 community.", "b": { "slug": "t3-code", "name": "T3 Code", "vendor": "T3 Tools Inc.", "vendorUrl": "https://t3.codes", "kind": "harness", "category": "agent-harnesses", "summary": "T3 Code is an open-source control surface for the coding agents on your machine, Claude Code, Codex, Cursor, Grok Build, OpenCode, Antigravity and fx, from desktop, web and iOS and Android apps.", "url": "https://www.anchorterminal.com/tools/t3-code", "markdownUrl": "https://www.anchorterminal.com/tools/t3-code.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/t3-code.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/t3-code.json", "dns": "t3-code.grade.anchorterminal.com", "repo": "https://github.com/pingdotgg/t3code", "license": "MIT", "transports": [], "packages": [], "auth": "none", "pricing": "free", "pricingNotes": "Free and open source. You pay for the coding agents it runs, through your own subscriptions or API keys (checked 2026-11-07).", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No payment protocol in the repository or README (checked 2026-11-07).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-07" }, "docsUrl": "https://github.com/pingdotgg/t3code/tree/main/docs", "capabilities": [ "agent.harness", "agent.multi-agent" ], "tags": [ "open-source", "mit", "desktop-app", "mobile", "telemetry", "new" ], "lastRelease": "2026-11-06", "graded": true, "anchor": { "graded": true, "score": 51.9, "grade": "D", "agentReady": false, "rank": 1002, "ranked": true, "rankOf": 1486, "categoryRank": 40, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 60, "maintenance": 75, "payments": 60, "reliability": 43, "schema": 55, "security": 35, "transparency": 51 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-11-07" }, "negative": 0, "verdict": "A fast-moving open-source way to run and steer several coding agents from desktop, browser or phone, using the subscriptions you already have. It's pre-1.0, and it sends usage data by default, including hashed identifiers for your OpenAI and Claude accounts, with the opt-out documented outside the README.", "bestFor": "Developers who want one app, including on their phone, to drive several coding agents they already pay for.", "strengths": [ "Controls Claude Code, Codex, Cursor, Grok Build, OpenCode, Antigravity and fx with your existing subscriptions", "iOS and Android apps to steer agents running on your machine", "Managed policies for teams, including turning telemetry off", "MIT, with active CI and daily nightlies" ], "weaknesses": [ "Usage data on by default, with hashed OpenAI and Claude account identifiers, and relay traces to Axiom", "The telemetry opt-out is in the docs, not the README", "Pre-1.0, at 0.1.7 stable", "Installs with curl piped to sh" ], "agentNotes": [ "Set T3CODE_TELEMETRY_ENABLED=false before starting the server if you don't want usage events sent", "Install and log in to at least one provider CLI first, such as codex login or claude auth login", "Use a managed policy to fix settings across a team" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "D", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 51.9 } ], "editorialScores": { "ergonomics": 60, "maintenance": 75, "payments": 60, "reliability": 43, "schema": 55, "security": 35, "transparency": 62 }, "provenanceScore": 40, "checked": { "categories": { "ergonomics": "2026-11-07", "maintenance": "2026-11-07", "payments": "2026-11-07", "reliability": "2026-11-07", "schema": "2026-11-07", "security": "2026-11-07", "transparency": "2026-11-07" }, "last": "2026-11-07", "oldest": "2026-11-07", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "curl -fsSL https://t3.codes/install.sh | sh" }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/t3-code" }, "area": "frameworks", "provenance": { "legalEntity": "T3 Tools Inc.", "domain": "t3.codes", "domainRegistered": "", "domainNote": "Not looked up: RDAP isn't requested under the 1 November 2026 rules.", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-11-07", "notes": [ "The licence names T3 Tools Inc.. The repository is github.com/pingdotgg/t3code." ], "score": 40 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/t3-code.json", "live": { "slug": "t3-code", "securityTxt": { "url": "https://t3.codes/.well-known/security.txt", "state": "valid", "expires": "2027-11-07T09:42:17.281Z", "checkedAt": "2026-11-07T16:01:55.404622007Z" }, "updatedAt": "2026-11-07T16:01:55.404622007Z" } }, "edges": [ { "by": 30, "category": "payments", "leads": "t3-code", "name": "Payments \u0026 pricing", "reasons": { "a": "Harness reading of the published rubric. No payment protocol in the docs, the pricing page or the plans page (0). Plan prices are public without a login, with a $0 individual plan and Gemini Enterprise Standard or Plus from $30 a seat a month, and Google AI Pro at $20 and Ultra at $100 or $200 a month per Google's 19 May 2026 post. Overages draw on AI credits at Gemini Enterprise consumption rates, which were not read, so this is plan-level pricing (10). The pricing page lists the $0 plan as needing no subscription, and none of the pages read asks for a payment method, but the account flow was not tested (20). Sign-in is a browser flow with a Google account, or a Gemini API key set by hand, and the CLI won't start unauthenticated (0). 0+10+20+0 = 30.", "b": "Free self-hosted software with nothing to buy, so 0 for a protocol and 20 each for public pricing, a free tier and onboarding with no sign-up, 60." }, "scores": { "a": 30, "b": 60 } }, { "by": 23, "category": "schema", "leads": "antigravity-cli", "name": "Schema \u0026 documentation", "reasons": { "a": "Framework reading. No published JSON Schema for settings.json, mcp_config.json or hooks.json was found, although the docs type each key (10). llms.txt at antigravity.google/llms.txt, and every docs page has a Markdown copy (10). Pages say when to use each permission preset and execution mode, what each allows and when the sandbox applies (15). Presets, modes, output formats, status values and effort levels are enumerated (13). The headless page documents the output envelope, the status values and exit codes, with a jq example (15). A dated changelog on the docs site and versioned release notes and tags in the repository (15). 10+10+15+13+15+15 = 78.", "b": "Harness reading. User docs in the repository (managed policy, handoffs, providers, telemetry), AGENTS.md for contributors, a server other clients connect to (55)." }, "scores": { "a": 78, "b": 55 } }, { "by": 18, "category": "ergonomics", "leads": "antigravity-cli", "name": "Agent ergonomics", "reasons": { "a": "Framework reading, adapted to a harness driven by a pipeline. MCP tools can be allowed or refused by server and tool, and a 20,000-token budget for user rules stops large rule sets from crowding out skills and MCP tools (16). No turn or spend cap appears in the flag reference, and `--print-timeout` sets a wall-clock limit only, with no limit by default (10). The JSON envelope carries a status field and token usage, and since 1.4.11 a `finished_reason` field says why a turn ended early (16). Exit codes are documented, but a tool soft-denied in headless mode still exits 0 (14). `--continue` and `--conversation` resume earlier runs (14). A Python SDK on PyPI, which is a separate package, and no second SDK language for the CLI (8). 16+10+16+14+14+8 = 78.", "b": "Harness reading. Remote control from phone or browser, portable handoffs between providers and managed policies for teams (60)." }, "scores": { "a": 78, "b": 60 } }, { "by": 18, "category": "security", "leads": "antigravity-cli", "name": "Security \u0026 auth", "reasons": { "a": "Framework reading (credentials and telemetry defaults, approvals and sandboxing, guardrails, audit, security programme), five lines. Credentials are a Google account sign-in kept in the operating system keyring, or a Gemini API key in settings.json. The README says using the CLI allows Google to collect Interactions until the user opts out (10). Since 1.3.5 on macOS and Linux and 1.4.4 on Windows 11 24H2 the default for personal accounts is Auto mode, which runs commands in the terminal sandbox, hides ~/.ssh, .env and, since 1.4.6, ~/.docker and ~/.kube, blocks network access outside approved domains, and has a separate agent review commands that leave the sandbox. Auto approves file edits and safe commands without asking, Turbo turns the sandbox off, and business accounts start in Default (18). Hooks run before and after tool calls and can block one, and since 1.4.11 a PreInvocation hook can stop a turn. No documented defence against prompt injection in fetched content was found (7). The CLI log records model resolution, and approvals show in the conversation, but no exportable audit log was found (10). google.com has a valid security.txt with reports to g.co/vulnz (per the 10 October check), antigravity.google serves none, no CLI advisory appears in the changelog, and NVD returns no CVE for Antigravity on 4 November. The repository's advisory page couldn't be read (8). 10+18+7+10+8 = 53.", "b": "Harness reading. Product usage events go by default to ingest.t3.codes and PostHog, with hashed identifiers for your T3 Connect, OpenAI and Claude accounts, and relay traces to Axiom, which can include machine names and error text. Off with T3CODE_TELEMETRY_ENABLED=false or a managed policy. Disclosed in docs/user/telemetry.md, not the README (10 of 30). Permission modes and managed policies (12 of 20). No prompt-injection guidance (5). No audit log (5). No security policy file found (3). 10 + 12 + 5 + 5 + 3 = 35." }, "scores": { "a": 53, "b": 35 } }, { "by": 7, "category": "maintenance", "leads": "t3-code", "name": "Maintenance \u0026 community", "reasons": { "a": "1.4.12 on 30 October 2026, marked Latest in the docs changelog, 5 days before this check (30). 56 tagged releases from 1.1.11 (6 August) to 1.4.12, each with a changelog entry; 1.5.0 is tagged and in the repository changelog on 4 November but not yet in the docs changelog, so it isn't counted (20). Responsiveness rests on a public changelog, a community forum linked from the terms and the GitHub repository, but no replies could be read (8). The google-antigravity Python SDK is a separate package and no SDK for the CLI itself was found; PyPI couldn't be read on 4 November, so the line rests on the 10 October reading (10). No public CI or dependency list for the CLI, since the source is not published (0). 30+20+8+10+0 = 68.", "b": "Commits and nightly tags on 6 November 2026 (30). More than three releases in 90 days (20). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Current official apps and install script (15). CI on push (10). 30 + 20 + 0 + 15 + 10 = 75." }, "scores": { "a": 68, "b": 75 } } ], "facts": [ { "a": "Agent harness", "b": "Agent harness", "name": "Kind" }, { "a": "Google", "b": "T3 Tools Inc.", "name": "Vendor" }, { "a": "no (local only)", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "", "b": "", "name": "Transports" }, { "a": "OAuth or key", "b": "None", "name": "Auth" }, { "a": "Freemium", "b": "Free", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary. The repository holds the README, changelog and examples, with no source and no licence file. Use is under the Google Antigravity Additional Terms of Service, the Google Terms of Service and the Privacy Policy", "b": "MIT", "name": "Licence" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "2026-10-30", "b": "2026-11-06", "name": "Last release" }, { "a": "no date given", "b": "no document linked", "name": "Terms last updated" }, { "a": "2026-10-01", "b": "no document linked", "name": "Privacy policy last updated" }, { "a": "yes, with an opt-out", "b": "not read yet", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not read yet", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "not read yet", "name": "Arbitration or class-action waiver" } ], "faq": [ { "answer": "Antigravity CLI scores 54.7 (C) on agent readiness against T3 Code's 51.9 (D), and leads in 4 of 7 scored categories. T3 Code leads on payments \u0026 pricing and maintenance \u0026 community.", "question": "Which is better for AI agents, Antigravity CLI or T3 Code?" }, { "answer": "No open-source release is listed for Antigravity CLI. T3 Code is open source (MIT).", "question": "Are Antigravity CLI and T3 Code open source?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 78 against 55", "Agent ergonomics, 78 against 60", "Security \u0026 auth, 53 against 35" ], "also": null, "goodFor": "Developers on Google AI plans or Gemini Enterprise who want a terminal agent with a sandbox on by default and access to several model families, depending on plan.", "slug": "antigravity-cli", "watchFor": "Closed source. The repository holds the README, changelog and examples, with no source and no licence file" }, { "aheadOn": [ "Payments \u0026 pricing, 60 against 30", "Maintenance \u0026 community, 75 against 68" ], "also": [ "No key needed to call it", "Open source", "No incidents deducted, where Antigravity CLI loses 3 points for them" ], "goodFor": "Developers who want one app, including on their phone, to drive several coding agents they already pay for.", "slug": "t3-code", "watchFor": "Usage data on by default, with hashed OpenAI and Claude account identifiers, and relay traces to Axiom" } ], "history": { "antigravity-cli": [ { "causes": [ "product", "event" ], "date": "2026-11-04", "delta": -2.9, "from": 57.6, "fromGrade": "C", "to": 54.7, "toGrade": "C" }, { "causes": [ "correction" ], "date": "2026-10-28", "delta": -0.1, "from": 57.7, "fromGrade": "C", "to": 57.6, "toGrade": "C" }, { "causes": [ "method" ], "date": "2026-10-27", "delta": 0.3, "from": 57.4, "fromGrade": "C", "to": 57.7, "toGrade": "C" } ], "t3-code": null }, "job": { "capability": "agent.harness", "name": "Agent harnesses" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-antigravity-cli.json", "title": "Agent Zero vs Antigravity CLI", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-antigravity-cli" }, { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-t3-code.json", "title": "Agent Zero vs T3 Code", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-antigravity-cli.json", "title": "Aider vs Antigravity CLI", "url": "https://www.anchorterminal.com/compare/aider-vs-antigravity-cli" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-t3-code.json", "title": "Aider vs T3 Code", "url": "https://www.anchorterminal.com/compare/aider-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-antigravity-cli.json", "title": "Amp vs Antigravity CLI", 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"https://www.anchorterminal.com/compare/t3-code-vs-traycer.json", "title": "T3 Code vs Traycer", "url": "https://www.anchorterminal.com/compare/t3-code-vs-traycer" }, { "json": "https://www.anchorterminal.com/compare/t3-code-vs-unstoppable.json", "title": "T3 Code vs Unstoppable", "url": "https://www.anchorterminal.com/compare/t3-code-vs-unstoppable" }, { "json": "https://www.anchorterminal.com/compare/t3-code-vs-verdent.json", "title": "T3 Code vs Verdent", "url": "https://www.anchorterminal.com/compare/t3-code-vs-verdent" }, { "json": "https://www.anchorterminal.com/compare/t3-code-vs-vibe-trading.json", "title": "T3 Code vs Vibe-Trading", "url": "https://www.anchorterminal.com/compare/t3-code-vs-vibe-trading" }, { "json": "https://www.anchorterminal.com/compare/t3-code-vs-warp.json", "title": "T3 Code vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/t3-code-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-clawboo.json", "title": "Antigravity CLI vs Clawboo", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-clawboo" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-cli-manager.json", "title": "Antigravity CLI vs CLI Manager", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-cli-manager" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-harness-autonomous.json", "title": "Antigravity CLI vs Harness", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-harness-autonomous" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-paperclip.json", "title": "Antigravity CLI vs Paperclip", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-paperclip" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-parallax-agents.json", "title": "Antigravity CLI vs Parallax", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-parallax-agents" }, { "json": "https://www.anchorterminal.com/compare/clawboo-vs-t3-code.json", "title": "Clawboo vs T3 Code", "url": "https://www.anchorterminal.com/compare/clawboo-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-t3-code.json", "title": "CLI Manager vs T3 Code", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/harness-autonomous-vs-t3-code.json", "title": "Harness vs T3 Code", "url": "https://www.anchorterminal.com/compare/harness-autonomous-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/openmausbot-vs-t3-code.json", "title": "OpenMausBot vs T3 Code", "url": "https://www.anchorterminal.com/compare/openmausbot-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/paperclip-vs-t3-code.json", "title": "Paperclip vs T3 Code", "url": "https://www.anchorterminal.com/compare/paperclip-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/parallax-agents-vs-t3-code.json", "title": "Parallax vs T3 Code", "url": "https://www.anchorterminal.com/compare/parallax-agents-vs-t3-code" } ], "panel": null, "scores": [ { "antigravity-cli": 43, "by": 0, "edge": "", "key": "reliability", "name": "Reliability", "t3-code": 43, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "antigravity-cli": 78, "by": 23, "edge": "antigravity-cli", "key": "schema", "name": "Schema \u0026 documentation", "t3-code": 55, "weight": 13 }, { "antigravity-cli": 78, "by": 18, "edge": "antigravity-cli", "key": "ergonomics", "name": "Agent ergonomics", "t3-code": 60, "weight": 13 }, { "antigravity-cli": 53, "by": 18, "edge": "antigravity-cli", "key": "security", "name": "Security \u0026 auth", "t3-code": 35, "weight": 14 }, { "antigravity-cli": 30, "by": 30, "edge": "t3-code", "key": "payments", "name": "Payments \u0026 pricing", "t3-code": 60, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "antigravity-cli": 68, "by": 7, "edge": "t3-code", "key": "maintenance", "name": "Maintenance \u0026 community", "t3-code": 75, "weight": 7 }, { "antigravity-cli": 55, "by": 4, "edge": "antigravity-cli", "key": "transparency", "name": "Transparency \u0026 trust", "t3-code": 51, "weight": 7 } ], "summary": "Antigravity CLI scores 54.7 (C) on agent readiness against T3 Code's 51.9 (D), and leads in 4 of 7 scored categories. T3 Code leads on payments \u0026 pricing and maintenance \u0026 community. Both do agent harnesses.", "tasks": null, "tutorials": [], "verdicts": { "antigravity-cli": "Google's terminal agent, a closed-source binary whose default Auto mode runs commands in a terminal sandbox on macOS, Linux and Windows 11, with documented headless JSON output. Interactions are collected for Google product improvement unless users opt out, a headless run exits 0 when a tool is denied, and 1.4.7 fixed a cross-user token flaw without an advisory.", "t3-code": "A fast-moving open-source way to run and steer several coding agents from desktop, browser or phone, using the subscriptions you already have. It's pre-1.0, and it sends usage data by default, including hashed identifiers for your OpenAI and Claude accounts, with the opt-out documented outside the README." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/antigravity-cli-vs-t3-code", "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-t3-code.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/antigravity-cli-vs-t3-code.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/antigravity-cli-vs-t3-code.min.md" }, "markdown": "Antigravity CLI scores 54.7 (C) on agent readiness against T3 Code's 51.9 (D), and leads in 4 of 7 scored categories. T3 Code leads on payments \u0026 pricing and maintenance \u0026 community. Both do agent harnesses.\n\n- Antigravity CLI: grade C, 54.7/100, rank #894 of 1486. Markdown https://www.anchorterminal.com/tools/antigravity-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json\n- T3 Code: grade D, 51.9/100, rank #1002 of 1486. Markdown https://www.anchorterminal.com/tools/t3-code.md · JSON https://www.anchorterminal.com/api/v1/tools/t3-code.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 1500 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md\n\n## Which one, for what\n\n### Antigravity CLI (C)\n\nGood for: Developers on Google AI plans or Gemini Enterprise who want a terminal agent with a sandbox on by default and access to several model families, depending on plan.\n\nAhead on:\n- Schema \u0026 documentation, 78 against 55\n- Agent ergonomics, 78 against 60\n- Security \u0026 auth, 53 against 35\n\nWatch for: Closed source. The repository holds the README, changelog and examples, with no source and no licence file\n\n### T3 Code (D)\n\nGood for: Developers who want one app, including on their phone, to drive several coding agents they already pay for.\n\nAhead on:\n- Payments \u0026 pricing, 60 against 30\n- Maintenance \u0026 community, 75 against 68\n\nAlso in its favour:\n- No key needed to call it\n- Open source\n- No incidents deducted, where Antigravity CLI loses 3 points for them\n\nWatch for: Usage data on by default, with hashed OpenAI and Claude account identifiers, and relay traces to Axiom\n\n\n## Why the edge\n\n### Payments \u0026 pricing: T3 Code +30\n\n- Antigravity CLI (30): Harness reading of the published rubric. No payment protocol in the docs, the pricing page or the plans page (0). Plan prices are public without a login, with a $0 individual plan and Gemini Enterprise Standard or Plus from $30 a seat a month, and Google AI Pro at $20 and Ultra at $100 or $200 a month per Google's 19 May 2026 post. Overages draw on AI credits at Gemini Enterprise consumption rates, which were not read, so this is plan-level pricing (10). The pricing page lists the $0 plan as needing no subscription, and none of the pages read asks for a payment method, but the account flow was not tested (20). Sign-in is a browser flow with a Google account, or a Gemini API key set by hand, and the CLI won't start unauthenticated (0). 0+10+20+0 = 30.\n- T3 Code (60): Free self-hosted software with nothing to buy, so 0 for a protocol and 20 each for public pricing, a free tier and onboarding with no sign-up, 60.\n\n### Schema \u0026 documentation: Antigravity CLI +23\n\n- Antigravity CLI (78): Framework reading. No published JSON Schema for settings.json, mcp_config.json or hooks.json was found, although the docs type each key (10). llms.txt at antigravity.google/llms.txt, and every docs page has a Markdown copy (10). Pages say when to use each permission preset and execution mode, what each allows and when the sandbox applies (15). Presets, modes, output formats, status values and effort levels are enumerated (13). The headless page documents the output envelope, the status values and exit codes, with a jq example (15). A dated changelog on the docs site and versioned release notes and tags in the repository (15). 10+10+15+13+15+15 = 78.\n- T3 Code (55): Harness reading. User docs in the repository (managed policy, handoffs, providers, telemetry), AGENTS.md for contributors, a server other clients connect to (55).\n\n### Agent ergonomics: Antigravity CLI +18\n\n- Antigravity CLI (78): Framework reading, adapted to a harness driven by a pipeline. MCP tools can be allowed or refused by server and tool, and a 20,000-token budget for user rules stops large rule sets from crowding out skills and MCP tools (16). No turn or spend cap appears in the flag reference, and `--print-timeout` sets a wall-clock limit only, with no limit by default (10). The JSON envelope carries a status field and token usage, and since 1.4.11 a `finished_reason` field says why a turn ended early (16). Exit codes are documented, but a tool soft-denied in headless mode still exits 0 (14). `--continue` and `--conversation` resume earlier runs (14). A Python SDK on PyPI, which is a separate package, and no second SDK language for the CLI (8). 16+10+16+14+14+8 = 78.\n- T3 Code (60): Harness reading. Remote control from phone or browser, portable handoffs between providers and managed policies for teams (60).\n\n### Security \u0026 auth: Antigravity CLI +18\n\n- Antigravity CLI (53): Framework reading (credentials and telemetry defaults, approvals and sandboxing, guardrails, audit, security programme), five lines. Credentials are a Google account sign-in kept in the operating system keyring, or a Gemini API key in settings.json. The README says using the CLI allows Google to collect Interactions until the user opts out (10). Since 1.3.5 on macOS and Linux and 1.4.4 on Windows 11 24H2 the default for personal accounts is Auto mode, which runs commands in the terminal sandbox, hides ~/.ssh, .env and, since 1.4.6, ~/.docker and ~/.kube, blocks network access outside approved domains, and has a separate agent review commands that leave the sandbox. Auto approves file edits and safe commands without asking, Turbo turns the sandbox off, and business accounts start in Default (18). Hooks run before and after tool calls and can block one, and since 1.4.11 a PreInvocation hook can stop a turn. No documented defence against prompt injection in fetched content was found (7). The CLI log records model resolution, and approvals show in the conversation, but no exportable audit log was found (10). google.com has a valid security.txt with reports to g.co/vulnz (per the 10 October check), antigravity.google serves none, no CLI advisory appears in the changelog, and NVD returns no CVE for Antigravity on 4 November. The repository's advisory page couldn't be read (8). 10+18+7+10+8 = 53.\n- T3 Code (35): Harness reading. Product usage events go by default to ingest.t3.codes and PostHog, with hashed identifiers for your T3 Connect, OpenAI and Claude accounts, and relay traces to Axiom, which can include machine names and error text. Off with T3CODE_TELEMETRY_ENABLED=false or a managed policy. Disclosed in docs/user/telemetry.md, not the README (10 of 30). Permission modes and managed policies (12 of 20). No prompt-injection guidance (5). No audit log (5). No security policy file found (3). 10 + 12 + 5 + 5 + 3 = 35.\n\n### Maintenance \u0026 community: T3 Code +7\n\n- Antigravity CLI (68): 1.4.12 on 30 October 2026, marked Latest in the docs changelog, 5 days before this check (30). 56 tagged releases from 1.1.11 (6 August) to 1.4.12, each with a changelog entry; 1.5.0 is tagged and in the repository changelog on 4 November but not yet in the docs changelog, so it isn't counted (20). Responsiveness rests on a public changelog, a community forum linked from the terms and the GitHub repository, but no replies could be read (8). The google-antigravity Python SDK is a separate package and no SDK for the CLI itself was found; PyPI couldn't be read on 4 November, so the line rests on the 10 October reading (10). No public CI or dependency list for the CLI, since the source is not published (0). 30+20+8+10+0 = 68.\n- T3 Code (75): Commits and nightly tags on 6 November 2026 (30). More than three releases in 90 days (20). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Current official apps and install script (15). CI on push (10). 30 + 20 + 0 + 15 + 10 = 75.\n\n## Score by category\n\n| Category | Weight | Antigravity CLI | T3 Code | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 43 | 43 | even |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 78 | 55 | Antigravity CLI +23 |\n| Agent ergonomics | 13% (16.2 this run) | 78 | 60 | Antigravity CLI +18 |\n| Security \u0026 auth | 14% (17.5 this run) | 53 | 35 | Antigravity CLI +18 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 60 | T3 Code +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 68 | 75 | T3 Code +7 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 55 | 51 | Antigravity CLI +4 |\n| Negative events | ≤15 | -3 | 0 | |\n| **Total** | | **54.7 · C** | **51.9 · D** | |\n\n## Facts side by side\n\n| Fact | Antigravity CLI | T3 Code |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | Google | T3 Tools Inc. |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | | |\n| Auth | OAuth or key | None |\n| Pricing | Freemium | Free |\n| x402 | no | no |\n| Licence | Proprietary. The repository holds the README, changelog and examples, with no source and no licence file. Use is under the Google Antigravity Additional Terms of Service, the Google Terms of Service and the Privacy Policy | MIT |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-10-30 | 2026-11-06 |\n| Terms last updated | no date given | no document linked |\n| Privacy policy last updated | 2026-10-01 | no document linked |\n| Customer content may train models | yes, with an opt-out | not read yet |\n| Terms restrict automated access | not found in the text | not read yet |\n| Terms restrict benchmarking | not found in the text | not read yet |\n| Terms or service can change without notice | not found in the text | not read yet |\n| Arbitration or class-action waiver | not found in the text | not read yet |\n\n## How the scores have moved\n\n### Antigravity CLI\n\n- -2.9 on 4 November 2026: product, negative event\n- -0.1 on 28 October 2026: correction\n- +0.3 on 27 October 2026: checklist\n\n### T3 Code\n\nNo score change since it was listed.\n\n## Verdicts\n\n**Antigravity CLI.** Google's terminal agent, a closed-source binary whose default Auto mode runs commands in a terminal sandbox on macOS, Linux and Windows 11, with documented headless JSON output. Interactions are collected for Google product improvement unless users opt out, a headless run exits 0 when a tool is denied, and 1.4.7 fixed a cross-user token flaw without an advisory.\n\n**T3 Code.** A fast-moving open-source way to run and steer several coding agents from desktop, browser or phone, using the subscriptions you already have. It's pre-1.0, and it sends usage data by default, including hashed identifiers for your OpenAI and Claude accounts, with the opt-out documented outside the README.\n\n## Before you call either\n\n### Antigravity CLI\n\n1. Read the `status` and `finished_reason` fields from `--output-format json` and read stderr too. A tool refused for lack of approval still exits 0\n2. Pre-approve each shell command and tool a headless run needs with `action(target)` rules under `permissions.allow` in ~/.gemini/antigravity-cli/settings.json, because headless runs cannot ask\n3. Export `GEMINI_API_KEY` after setting modelProvider to gemini. The CLI won't start when the key is missing, and setting the variable alone has no effect\n4. Turn off Enable Telemetry in /config before running on private repositories if Interactions should not be used for product improvement\n5. Grant sandbox access to ~/.docker or ~/.kube explicitly since 1.4.6 if a task needs Docker or Kubernetes credentials\n\n### T3 Code\n\n1. Set T3CODE_TELEMETRY_ENABLED=false before starting the server if you don't want usage events sent\n2. Install and log in to at least one provider CLI first, such as codex login or claude auth login\n3. Use a managed policy to fix settings across a team\n\n## Questions\n\n### Which is better for AI agents, Antigravity CLI or T3 Code?\n\nAntigravity CLI scores 54.7 (C) on agent readiness against T3 Code's 51.9 (D), and leads in 4 of 7 scored categories. T3 Code leads on payments \u0026 pricing and maintenance \u0026 community.\n\n### Are Antigravity CLI and T3 Code open source?\n\nNo open-source release is listed for Antigravity CLI. T3 Code is open source (MIT).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/antigravity-cli-vs-t3-code.json, and with the fewest tokens: https://www.anchorterminal.com/compare/antigravity-cli-vs-t3-code.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"antigravity-cli\", \"b\": \"t3-code\"}`. From a terminal: `anchor compare antigravity-cli t3-code`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json and https://www.anchorterminal.com/api/v1/tools/t3-code.json\n\n## Other comparisons with Antigravity CLI or T3 Code\n\n- [Agent Zero vs Antigravity CLI](https://www.anchorterminal.com/compare/agent-zero-vs-antigravity-cli.md)\n- [Agent Zero vs T3 Code](https://www.anchorterminal.com/compare/agent-zero-vs-t3-code.md)\n- [Aider vs Antigravity CLI](https://www.anchorterminal.com/compare/aider-vs-antigravity-cli.md)\n- [Aider vs T3 Code](https://www.anchorterminal.com/compare/aider-vs-t3-code.md)\n- [Amp vs Antigravity CLI](https://www.anchorterminal.com/compare/amp-vs-antigravity-cli.md)\n- [Amp vs T3 Code](https://www.anchorterminal.com/compare/amp-vs-t3-code.md)\n- [Antigravity CLI vs Auggie CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-auggie.md)\n- [Antigravity CLI vs AXLR](https://www.anchorterminal.com/compare/antigravity-cli-vs-axlr.md)\n- [Antigravity CLI vs Claude Code](https://www.anchorterminal.com/compare/antigravity-cli-vs-claude-code.md)\n- [Antigravity CLI vs Cline](https://www.anchorterminal.com/compare/antigravity-cli-vs-cline.md)\n- [Antigravity CLI vs Conductor](https://www.anchorterminal.com/compare/antigravity-cli-vs-conductor.md)\n- [Antigravity CLI vs Crush](https://www.anchorterminal.com/compare/antigravity-cli-vs-crush.md)\n- [Antigravity CLI vs Cursor CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-cursor-cli.md)\n- [Antigravity CLI vs DeepSeek Harness (dsh)](https://www.anchorterminal.com/compare/antigravity-cli-vs-deepseek-harness.md)\n- [Antigravity CLI vs dsh-superagent (DeepSeek)](https://www.anchorterminal.com/compare/antigravity-cli-vs-deepseek-superagent.md)\n- [Antigravity CLI vs Devin](https://www.anchorterminal.com/compare/antigravity-cli-vs-devin.md)\n- [Antigravity CLI vs Droid 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