{
  "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",
      "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": "2026-10-08",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 57.4,
        "grade": "C",
        "agentReady": false,
        "rank": 674,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 19,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 78,
          "maintenance": 68,
          "payments": 30,
          "reliability": 43,
          "schema": 78,
          "security": 53,
          "transparency": 51
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-10"
        },
        "negative": 0,
        "verdict": "Google's terminal agent, shipped as a closed-source binary with a terminal sandbox on by default on macOS and Linux and documented headless JSON output. Interactions are used to improve Google products unless users opt out, and a headless run exits 0 when a tool is denied.",
        "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": [
          "The sandbox is on under the Default preset on macOS and Linux, hides ~/.ssh and .env, and limits network access to approved domains",
          "Headless `agy -p` runs with `--output-format json` or `stream-json`, a status field with SUCCESS, ERROR and other terminal states, 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 and PostToolUse hooks, and plugins from an official marketplace that `/plugin` manages",
          "The installer verifies a SHA-512 checksum against a manifest on Google's release server before it installs"
        ],
        "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",
          "The sandbox is labelled preview in the permissions docs, and Windows still uses the older permission model that the docs describe separately",
          "A headless run exits 0 when a tool that needs approval is refused, and the only sign is a notice on stderr",
          "The plans page gives no request counts for the weekly quota, which Google sets by available capacity"
        ],
        "agentNotes": [
          "Read the `status` field 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 the Account settings before running on private repositories if Interactions should not be used for product improvement",
          "Set `--print-timeout` explicitly. The docs give a five-minute default, while `agy --help` shows 0s"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 57.4
          }
        ],
        "editorialScores": {
          "ergonomics": 78,
          "maintenance": 68,
          "payments": 30,
          "reliability": 43,
          "schema": 78,
          "security": 53,
          "transparency": 52
        },
        "provenanceScore": 50
      },
      "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": "2026-10-10",
        "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": 50
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/antigravity-cli.json",
      "live": {
        "slug": "antigravity-cli",
        "versions": [
          {
            "registry": "github",
            "name": "google-antigravity/antigravity-cli",
            "version": "1.4.0",
            "released": "2026-10-16",
            "seenAt": "2026-10-17T01:33:47.485753972Z"
          }
        ],
        "githubStars": 2574,
        "securityTxt": {
          "url": "https://antigravity.google/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-17T15:52:09.432284276Z"
        },
        "llmsTxt": {
          "url": "https://antigravity.google/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-17T14:21:25.443488284Z"
        },
        "domain": {
          "domain": "antigravity.google",
          "registered": "2025-09-19",
          "source": "https://pubapi.registry.google/rdap/domain/antigravity.google",
          "checkedAt": "2026-10-11T13:22:23.201096321Z"
        },
        "pages": [
          {
            "url": "https://antigravity.google/docs/changelog/",
            "kind": "changelog",
            "status": 304,
            "checkedAt": "2026-10-17T22:56:05.174828357Z",
            "changedAt": "2026-10-17T22:44:44.718339453Z",
            "fingerprint": "c85bb2092d02"
          },
          {
            "url": "https://policies.google.com/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-17T23:07:57.727753793Z",
            "changedAt": "2026-10-16T22:29:01.693232998Z",
            "fingerprint": "a7c8f2c3ee09"
          },
          {
            "url": "https://antigravity.google/terms",
            "kind": "terms",
            "status": 304,
            "checkedAt": "2026-10-17T22:56:07.293037738Z",
            "changedAt": "2026-10-17T22:44:47.360698402Z",
            "fingerprint": "45cbf764cb98"
          }
        ],
        "updatedAt": "2026-10-17T23:07:57.727753793Z"
      }
    },
    "answer": "Antigravity CLI scores 57.4 (C) on agent readiness against Mirror CLI's 54.2 (C), and leads in 4 of 7 scored categories. Mirror CLI leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust.",
    "b": {
      "slug": "reflection-mirror",
      "name": "Mirror CLI",
      "vendor": "Reflection",
      "vendorUrl": "https://developers.reflection.ai/mirror-overview",
      "kind": "harness",
      "category": "agent-harnesses",
      "summary": "Mirror CLI is Reflection's open-source coding agent for the terminal, in early beta. It reads code, edits files and runs commands, with parallel agents in separate worktrees, MCP connections and Python extensions, using Beam by default or another provider.",
      "url": "https://www.anchorterminal.com/tools/reflection-mirror",
      "markdownUrl": "https://www.anchorterminal.com/tools/reflection-mirror.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/reflection-mirror.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/reflection-mirror.json",
      "repo": "https://github.com/reflection-oss/mirror",
      "license": "Apache-2.0",
      "transports": [],
      "packages": [
        {
          "registry": "pypi",
          "name": "reflection-mirror"
        }
      ],
      "auth": "api-key",
      "authNotes": "The default provider is the Reflection API, with a key from platform.reflection.ai in `REFLECTION_API_KEY` or pasted at first start and saved to `~/.mirror/reflection_api_key`. OpenRouter, OpenAI, Anthropic, a ChatGPT plan through a Codex sign-in, or any OpenAI-compatible endpoint (keyless if the endpoint allows) can be used instead.",
      "pricing": "free",
      "pricingNotes": "Free and Apache-2.0. Model calls are billed by the provider chosen. The default Reflection API was a free public beta with daily usage limits on 17 October 2026, and some organisations must verify a credit card before their keys work.",
      "priceSummary": "Free · OSS",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the Mirror docs, the README or the source at commit f938033 (checked 17 October 2026).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-17"
      },
      "docsUrl": "https://developers.reflection.ai/mirror-overview",
      "llmsTxt": "https://developers.reflection.ai/llms.txt",
      "capabilities": [
        "agent.harness",
        "agent.mcp-client",
        "agent.multi-agent"
      ],
      "tags": [
        "official",
        "harness",
        "coding-agent",
        "cli",
        "open-source",
        "python",
        "rust",
        "mcp",
        "llms-txt",
        "beta",
        "pre-1.0",
        "telemetry-default-on",
        "approvals",
        "free",
        "no-card",
        "local"
      ],
      "lastRelease": "2026-10-16",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 54.2,
        "grade": "C",
        "agentReady": false,
        "rank": 765,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 22,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 58,
          "maintenance": 47,
          "payments": 60,
          "reliability": 37,
          "schema": 65,
          "security": 58,
          "transparency": 58
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": 0,
        "verdict": "Mirror CLI is Apache-2.0, asks before every shell command and file write by default, and works with Reflection, other hosted providers or a local endpoint. It is a one-day-old 0.1.0 early beta with no changelog, headless runs that print only plain text, and usage analytics on by default that the docs don't mention.",
        "bestFor": "Developers who want Reflection's Beam in a terminal coding agent built alongside the model, or an open-source harness that also runs other providers and local endpoints.",
        "strengths": [
          "Apache-2.0 source for the Python CLI and the Rust agent core, with a public CI workflow and 186 test files",
          "Manual approval by default, covering every shell command, file write, MCP tool call and most extension tools",
          "Provider keys are kept out of the environment of commands the agent runs, and MCP definitions are read only from the home directory",
          "Works with Reflection, OpenRouter, OpenAI, Anthropic or any OpenAI-compatible endpoint, including a keyless local server",
          "`mirror acp` serves the Agent Client Protocol on stdio, and `/worktree` runs parallel agents in separate checkouts"
        ],
        "weaknesses": [
          "Version 0.1.0, released 16 October 2026 and labelled early beta, with no changelog or release tags",
          "Usage analytics go to Statsig by default, disclosed in a first-run notice but not in the docs or README",
          "No sandbox by default. The opt-in microVM sandbox covers file and shell tools only, and extensions and local MCP servers run on the host",
          "`mirror exec` prints only the final answer as plain text, with exit codes not documented and no budget or time limit",
          "Approval mode is saved globally, so switching to auto in one directory applies to later launches everywhere"
        ],
        "agentNotes": [
          "Open Mirror interactively once in each directory before `mirror exec` or `mirror acp`. Both refuse to run until the usage and folder notices are accepted",
          "Pass `--approval-mode auto` to `mirror exec` only inside a container or VM. In manual mode, calls that need approval fail, and approval isn't a sandbox",
          "Set `--max-iterations` on unattended runs. Turns are unlimited by default",
          "Check the result with your own tests. `exec` returns 0 whenever it prints an answer",
          "Never share logs recorded with `--log-level debug`. The docs say they contain request headers with the API key"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 54.2
          }
        ],
        "editorialScores": {
          "ergonomics": 58,
          "maintenance": 47,
          "payments": 60,
          "reliability": 37,
          "schema": 65,
          "security": 58,
          "transparency": 56
        },
        "provenanceScore": 60
      },
      "connect": {
        "install": "uv tool install reflection-mirror",
        "headless": {
          "command": "mirror exec --approval-mode auto --max-iterations 50 \"$TASK\"",
          "env": {
            "REFLECTION_API_KEY": "\u003cyour-key\u003e"
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/agent.harness",
        "tool": "https://letme.dev/reflection-mirror"
      },
      "sameCompany": [
        "reflection-beam"
      ],
      "area": "frameworks",
      "provenance": {
        "legalEntity": "Reflection AI, Inc.",
        "domain": "reflection.ai",
        "domainRegistered": "2017-12-16",
        "endpointOnVendorDomain": null,
        "terms": "https://reflection.ai/legal/commercial-terms-of-service",
        "privacy": "https://reflection.ai/legal/privacy-policy",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-17",
        "notes": [
          "The software is under Apache-2.0 (LICENSE and NOTICE in the repository). The terms field is Reflection's Commercial Terms of Service, which cover the Reflection API that Mirror calls by default and say beta services are provided as is. The site Terms of Service (last updated 19 February 2025) cover the website only.",
          "The Privacy Policy, last updated 28 August 2026, names Reflection AI, Inc., 61 9th Ave, Floor 3, New York, NY 10011, and gives no fixed retention periods.",
          "RDAP for reflection.ai gives a registration date of 16 December 2017.",
          "No changelog or release notes were found for Mirror. The repository has no tags.",
          "reflection.ai/.well-known/security.txt and developers.reflection.ai/.well-known/security.txt return 404. The repository's SECURITY.md sends vulnerability reports to developers@reflection.ai.",
          "Mirror is software the owner runs, so no status page applies to it. The Reflection API's status page wasn't looked for here."
        ],
        "score": 60
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/reflection-mirror.json"
    },
    "facts": [
      {
        "a": "Agent harness",
        "b": "Agent harness",
        "name": "Kind"
      },
      {
        "a": "Google",
        "b": "Reflection",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "no (local only)",
        "name": "Hosted endpoint"
      },
      {
        "a": "",
        "b": "",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "API key",
        "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": "Apache-2.0",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-08",
        "b": "2026-10-16",
        "name": "Last release"
      },
      {
        "a": "no date given",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "2026-10-01",
        "b": "",
        "name": "Privacy policy last updated"
      },
      {
        "a": "yes, with an opt-out",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "none",
        "b": "3/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Antigravity CLI scores 57.4 (C) on agent readiness against Mirror CLI's 54.2 (C), and leads in 4 of 7 scored categories. Mirror CLI leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust.",
        "question": "Which is better for AI agents, Antigravity CLI or Mirror CLI?"
      },
      {
        "answer": "No open-source release is listed for Antigravity CLI. Mirror CLI is open source (Apache-2.0).",
        "question": "Are Antigravity CLI and Mirror CLI open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 43 against 37",
          "Schema \u0026 documentation, 78 against 65",
          "Agent ergonomics, 78 against 58",
          "Maintenance \u0026 community, 68 against 47"
        ],
        "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": [
          "Security \u0026 auth, 58 against 53",
          "Payments \u0026 pricing, 60 against 30",
          "Transparency \u0026 trust, 58 against 51"
        ],
        "also": [
          "Free to start without a card",
          "Open source"
        ],
        "goodFor": "Developers who want Reflection's Beam in a terminal coding agent built alongside the model, or an open-source harness that also runs other providers and local endpoints.",
        "slug": "reflection-mirror",
        "watchFor": "Version 0.1.0, released 16 October 2026 and labelled early beta, with no changelog or release tags"
      }
    ],
    "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-reflection-mirror.json",
        "title": "Agent Zero vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/agent-zero-vs-reflection-mirror"
      },
      {
        "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-reflection-mirror.json",
        "title": "Aider vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/aider-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amp-vs-antigravity-cli.json",
        "title": "Amp vs Antigravity CLI",
        "url": "https://www.anchorterminal.com/compare/amp-vs-antigravity-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amp-vs-reflection-mirror.json",
        "title": "Amp vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/amp-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-claude-code.json",
        "title": "Antigravity CLI vs Claude Code",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-claude-code"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-cline.json",
        "title": "Antigravity CLI vs Cline",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-cline"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-cursor-cli.json",
        "title": "Antigravity CLI vs Cursor CLI",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-cursor-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-devin.json",
        "title": "Antigravity CLI vs Devin",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-devin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-droid-cli.json",
        "title": "Antigravity CLI vs Droid CLI",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-droid-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-earendil-pi.json",
        "title": "Antigravity CLI vs Pi",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-earendil-pi"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-gemini-cli.json",
        "title": "Antigravity CLI vs Gemini CLI",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-gemini-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-github-copilot-cli.json",
        "title": "Antigravity CLI vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-goose.json",
        "title": "Antigravity CLI vs goose",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-goose"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter.json",
        "title": "Antigravity CLI vs HarnessRouter",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-kilo-code-cli.json",
        "title": "Antigravity CLI vs Kilo Code CLI",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-kilo-code-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-kiro-cli.json",
        "title": "Antigravity CLI vs Kiro CLI",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-kiro-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code.json",
        "title": "Antigravity CLI vs Muse Code",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-openai-codex.json",
        "title": "Antigravity CLI vs OpenAI Codex",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-openai-codex"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-opencode.json",
        "title": "Antigravity CLI vs OpenCode",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-opencode"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-openhands.json",
        "title": "Antigravity CLI vs OpenHands",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-openhands"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-prime-agent.json",
        "title": "Antigravity CLI vs Prime Agent",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-prime-agent"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-qwen-code.json",
        "title": "Antigravity CLI vs Qwen Code",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-qwen-code"
      },
      {
        "json": "https://www.anchorterminal.com/compare/claude-code-vs-reflection-mirror.json",
        "title": "Claude Code vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/claude-code-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cline-vs-reflection-mirror.json",
        "title": "Cline vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/cline-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-reflection-mirror.json",
        "title": "Cursor CLI vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/devin-vs-reflection-mirror.json",
        "title": "Devin vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/devin-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/droid-cli-vs-reflection-mirror.json",
        "title": "Droid CLI vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/droid-cli-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-reflection-mirror.json",
        "title": "Pi vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-reflection-mirror.json",
        "title": "Gemini CLI vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/gemini-cli-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-reflection-mirror.json",
        "title": "GitHub Copilot CLI vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/goose-vs-reflection-mirror.json",
        "title": "goose vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/goose-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-reflection-mirror.json",
        "title": "HarnessRouter vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kilo-code-cli-vs-reflection-mirror.json",
        "title": "Kilo Code CLI vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/kilo-code-cli-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kiro-cli-vs-reflection-mirror.json",
        "title": "Kiro CLI vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/kiro-cli-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/muse-code-vs-reflection-mirror.json",
        "title": "Muse Code vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/muse-code-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/openai-codex-vs-reflection-mirror.json",
        "title": "OpenAI Codex vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/openai-codex-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/opencode-vs-reflection-mirror.json",
        "title": "OpenCode vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/opencode-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/openhands-vs-reflection-mirror.json",
        "title": "OpenHands vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/openhands-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/prime-agent-vs-reflection-mirror.json",
        "title": "Prime Agent vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/prime-agent-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/qwen-code-vs-reflection-mirror.json",
        "title": "Qwen Code vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/qwen-code-vs-reflection-mirror"
      },
      {
        "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/cli-manager-vs-reflection-mirror.json",
        "title": "CLI Manager vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/cli-manager-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/harness-autonomous-vs-reflection-mirror.json",
        "title": "Harness vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/harness-autonomous-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/paperclip-vs-reflection-mirror.json",
        "title": "Paperclip vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/paperclip-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/parallax-agents-vs-reflection-mirror.json",
        "title": "Parallax vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/parallax-agents-vs-reflection-mirror"
      }
    ],
    "scores": [
      {
        "antigravity-cli": 43,
        "by": 6,
        "edge": "antigravity-cli",
        "key": "reliability",
        "name": "Reliability",
        "reflection-mirror": 37,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "antigravity-cli": 78,
        "by": 13,
        "edge": "antigravity-cli",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "reflection-mirror": 65,
        "weight": 13
      },
      {
        "antigravity-cli": 78,
        "by": 20,
        "edge": "antigravity-cli",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "reflection-mirror": 58,
        "weight": 13
      },
      {
        "antigravity-cli": 53,
        "by": 5,
        "edge": "reflection-mirror",
        "key": "security",
        "name": "Security \u0026 auth",
        "reflection-mirror": 58,
        "weight": 14
      },
      {
        "antigravity-cli": 30,
        "by": 30,
        "edge": "reflection-mirror",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "reflection-mirror": 60,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "antigravity-cli": 68,
        "by": 21,
        "edge": "antigravity-cli",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "reflection-mirror": 47,
        "weight": 7
      },
      {
        "antigravity-cli": 51,
        "by": 7,
        "edge": "reflection-mirror",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "reflection-mirror": 58,
        "weight": 7
      }
    ],
    "summary": "Antigravity CLI scores 57.4 (C) on agent readiness against Mirror CLI's 54.2 (C), and leads in 4 of 7 scored categories. Mirror CLI leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust. Both do agent harnesses.",
    "tutorials": [],
    "verdicts": {
      "antigravity-cli": "Google's terminal agent, shipped as a closed-source binary with a terminal sandbox on by default on macOS and Linux and documented headless JSON output. Interactions are used to improve Google products unless users opt out, and a headless run exits 0 when a tool is denied.",
      "reflection-mirror": "Mirror CLI is Apache-2.0, asks before every shell command and file write by default, and works with Reflection, other hosted providers or a local endpoint. It is a one-day-old 0.1.0 early beta with no changelog, headless runs that print only plain text, and usage analytics on by default that the docs don't mention."
    }
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/antigravity-cli-vs-reflection-mirror",
    "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-reflection-mirror.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/antigravity-cli-vs-reflection-mirror.md",
    "mcp": "https://www.anchorterminal.com/mcp",
    "slim": "https://www.anchorterminal.com/compare/antigravity-cli-vs-reflection-mirror.min.md"
  },
  "markdown": "Antigravity CLI scores 57.4 (C) on agent readiness against Mirror CLI's 54.2 (C), and leads in 4 of 7 scored categories. Mirror CLI leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust. Both do agent harnesses.\n\n- Antigravity CLI: grade C, 57.4/100, rank #674 of 1133. Markdown https://www.anchorterminal.com/tools/antigravity-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json\n- Mirror CLI: grade C, 54.2/100, rank #765 of 1133. Markdown https://www.anchorterminal.com/tools/reflection-mirror.md · JSON https://www.anchorterminal.com/api/v1/tools/reflection-mirror.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 331 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- Reliability, 43 against 37\n- Schema \u0026 documentation, 78 against 65\n- Agent ergonomics, 78 against 58\n- Maintenance \u0026 community, 68 against 47\n\nWatch for: Closed source. The repository holds the README, changelog and examples, with no source and no licence file\n\n### Mirror CLI (C)\n\nGood for: Developers who want Reflection's Beam in a terminal coding agent built alongside the model, or an open-source harness that also runs other providers and local endpoints.\n\nAhead on:\n- Security \u0026 auth, 58 against 53\n- Payments \u0026 pricing, 60 against 30\n- Transparency \u0026 trust, 58 against 51\n\nAlso in its favour:\n- Free to start without a card\n- Open source\n\nWatch for: Version 0.1.0, released 16 October 2026 and labelled early beta, with no changelog or release tags\n\n\n## Score by category\n\n| Category | Weight | Antigravity CLI | Mirror CLI | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 43 | 37 | Antigravity CLI +6 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 78 | 65 | Antigravity CLI +13 |\n| Agent ergonomics | 13% (16.2 this run) | 78 | 58 | Antigravity CLI +20 |\n| Security \u0026 auth | 14% (17.5 this run) | 53 | 58 | Mirror CLI +5 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 60 | Mirror CLI +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 68 | 47 | Antigravity CLI +21 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 51 | 58 | Mirror CLI +7 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **57.4 · C** | **54.2 · C** | |\n\n## Facts side by side\n\n| Fact | Antigravity CLI | Mirror CLI |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | Google | Reflection |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports |  |  |\n| Auth | OAuth or key | API key |\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 | Apache-2.0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-08 | 2026-10-16 |\n| Terms last updated | no date given |  |\n| Privacy policy last updated | 2026-10-01 |  |\n| Customer content may train models | yes, with an opt-out |  |\n| Terms restrict automated access | not found in the text |  |\n| Terms restrict benchmarking | not found in the text |  |\n| Terms or service can change without notice | not found in the text |  |\n| Arbitration or class-action waiver | not found in the text |  |\n| Agent reviews | none | 3/5 (4) |\n\n## Verdicts\n\n**Antigravity CLI.** Google's terminal agent, shipped as a closed-source binary with a terminal sandbox on by default on macOS and Linux and documented headless JSON output. Interactions are used to improve Google products unless users opt out, and a headless run exits 0 when a tool is denied.\n\n**Mirror CLI.** Mirror CLI is Apache-2.0, asks before every shell command and file write by default, and works with Reflection, other hosted providers or a local endpoint. It is a one-day-old 0.1.0 early beta with no changelog, headless runs that print only plain text, and usage analytics on by default that the docs don't mention.\n\n## Before you call either\n\n### Antigravity CLI\n\n1. Read the `status` field 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 the Account settings before running on private repositories if Interactions should not be used for product improvement\n5. Set `--print-timeout` explicitly. The docs give a five-minute default, while `agy --help` shows 0s\n\n### Mirror CLI\n\n1. Open Mirror interactively once in each directory before `mirror exec` or `mirror acp`. Both refuse to run until the usage and folder notices are accepted\n2. Pass `--approval-mode auto` to `mirror exec` only inside a container or VM. In manual mode, calls that need approval fail, and approval isn't a sandbox\n3. Set `--max-iterations` on unattended runs. Turns are unlimited by default\n4. Check the result with your own tests. `exec` returns 0 whenever it prints an answer\n5. Never share logs recorded with `--log-level debug`. The docs say they contain request headers with the API key\n\n## Questions\n\n### Which is better for AI agents, Antigravity CLI or Mirror CLI?\n\nAntigravity CLI scores 57.4 (C) on agent readiness against Mirror CLI's 54.2 (C), and leads in 4 of 7 scored categories. Mirror CLI leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust.\n\n### Are Antigravity CLI and Mirror CLI open source?\n\nNo open-source release is listed for Antigravity CLI. Mirror CLI is open source (Apache-2.0).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/antigravity-cli-vs-reflection-mirror.json, and with the fewest tokens: https://www.anchorterminal.com/compare/antigravity-cli-vs-reflection-mirror.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"antigravity-cli\", \"b\": \"reflection-mirror\"}`. From a terminal: `anchor compare antigravity-cli reflection-mirror`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json and https://www.anchorterminal.com/api/v1/tools/reflection-mirror.json\n\n## Other comparisons with Antigravity CLI or Mirror CLI\n\n- [Agent Zero vs Antigravity CLI](https://www.anchorterminal.com/compare/agent-zero-vs-antigravity-cli.md)\n- [Agent Zero vs Mirror CLI](https://www.anchorterminal.com/compare/agent-zero-vs-reflection-mirror.md)\n- [Aider vs Antigravity CLI](https://www.anchorterminal.com/compare/aider-vs-antigravity-cli.md)\n- [Aider vs Mirror CLI](https://www.anchorterminal.com/compare/aider-vs-reflection-mirror.md)\n- [Amp vs Antigravity CLI](https://www.anchorterminal.com/compare/amp-vs-antigravity-cli.md)\n- [Amp vs Mirror CLI](https://www.anchorterminal.com/compare/amp-vs-reflection-mirror.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 Cursor CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-cursor-cli.md)\n- [Antigravity CLI vs Devin](https://www.anchorterminal.com/compare/antigravity-cli-vs-devin.md)\n- [Antigravity CLI vs Droid CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-droid-cli.md)\n- [Antigravity CLI vs Pi](https://www.anchorterminal.com/compare/antigravity-cli-vs-earendil-pi.md)\n- [Antigravity CLI vs Gemini CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-gemini-cli.md)\n- [Antigravity CLI vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-github-copilot-cli.md)\n- [Antigravity CLI vs goose](https://www.anchorterminal.com/compare/antigravity-cli-vs-goose.md)\n- [Antigravity CLI vs HarnessRouter](https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter.md)\n- [Antigravity CLI vs Kilo Code CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-kilo-code-cli.md)\n- [Antigravity CLI vs Kiro CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-kiro-cli.md)\n- [Antigravity CLI vs Muse Code](https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code.md)\n- [Antigravity CLI vs OpenAI Codex](https://www.anchorterminal.com/compare/antigravity-cli-vs-openai-codex.md)\n- [Antigravity CLI vs OpenCode](https://www.anchorterminal.com/compare/antigravity-cli-vs-opencode.md)\n- [Antigravity CLI vs OpenHands](https://www.anchorterminal.com/compare/antigravity-cli-vs-openhands.md)\n- [Antigravity CLI vs Prime Agent](https://www.anchorterminal.com/compare/antigravity-cli-vs-prime-agent.md)\n- [Antigravity CLI vs Qwen Code](https://www.anchorterminal.com/compare/antigravity-cli-vs-qwen-code.md)\n- [Claude Code vs Mirror CLI](https://www.anchorterminal.com/compare/claude-code-vs-reflection-mirror.md)\n- [Cline vs Mirror 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