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Head to head · Agent harnesses · October 2026 research run

Antigravity CLI vs Vibe-Trading

Vibe-Trading scores 62.2 (B) on agent readiness against Antigravity CLI's 57.4 (C), and leads in 4 of 7 scored categories. Antigravity CLI leads on schema & documentation and agent ergonomics. Both do agent harnesses.

Best agent harnesses and coding agents · All 792 harnesses comparisons

Antigravity CLIGoogle · Agent harness C57.4/100#697 of 1210 Vibe-TradingHKUDS · Agent harness B62.2/100#502 of 1210

Which one, for what

Antigravity CLI C

Best 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.

Ahead on

  • Schema & documentation, 78 against 72
  • Agent ergonomics, 78 against 67

Also in its favour

  • No incidents deducted, where Vibe-Trading loses 4 points for them

Watch for

Closed source. The repository holds the README, changelog and examples, with no source and no licence file

Vibe-Trading B

Best for A person or a pipeline that wants a ready-made finance research agent over free market data, with backtests, swarm reviews and exports, run on their own machine or used as an MCP server by another agent.

Ahead on

  • Reliability, 63 against 43
  • Security & auth, 70 against 53
  • Payments & pricing, 60 against 30
  • Maintenance & community, 82 against 68

Also in its favour

  • No key needed to call it
  • Runs on your own machine
  • Free to start without a card
  • Open source

Watch for

Three advisories published 2 October 2026 cover 0.1.0 to 0.1.6, two critical, among them unauthenticated API access with an RCE chain

Score by category

CategoryWeight this runAntigravity CLIVibe-TradingEdge
Reliability16%204363Vibe-Trading +20
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27872Antigravity CLI +6
Agent ergonomics13%16.27867Antigravity CLI +11
Security & auth14%17.55370Vibe-Trading +17
Payments & pricing10%12.53060Vibe-Trading +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86882Vibe-Trading +14
Transparency & trust7%8.85147Antigravity CLI +4
Negative events≤150-4
TotalC 57.4/100B 62.2/100

Facts side by side

FactAntigravity CLIVibe-Trading
KindAgent harnessAgent harness
VendorGoogleHKUDS
Hosted endpointno (local only)no (local only)
Transportsstdio, Streamable HTTP, SSE (legacy)
AuthOAuth or keyNone
PricingFreemiumFree
x402nono
LicenceProprietary. 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 PolicyMIT
Tools exposednone82
Read-only variant documentednono
llms.txtyesno
Last release2026-10-082026-10-21
Terms last updatedno date givenno document linked
Privacy policy last updated2026-10-01no document linked
Customer content may train modelsyes, with an opt-out
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Popularitynone37k stars

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.

Vibe-Trading

Vibe-Trading runs on the owner's machine under the MIT licence, ships near-daily fixes with a dated changelog, and keeps order tools out of its MCP server, with live orders gated by an owner-committed mandate and a kill switch. Three advisories, two critical, covered versions before 0.1.7, and the local CLI runs shell commands without asking.

Before you call either

Antigravity CLI

  1. Read the status field from --output-format json and read stderr too. A tool refused for lack of approval still exits 0
  2. 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
  3. 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
  4. Turn off Enable Telemetry in the Account settings before running on private repositories if Interactions should not be used for product improvement
  5. Set --print-timeout explicitly. The docs give a five-minute default, while agy --help shows 0s

Vibe-Trading

  1. Run 0.1.7 or later. Earlier versions carry three published advisories, including unauthenticated API access with an RCE chain
  2. Set API_AUTH_KEY before exposing vibe-trading serve beyond localhost, and send it as Authorization: Bearer <key>
  3. Set VIBE_TRADING_ALLOWED_RUN_ROOTS in the MCP client's env block; a shell export does not reach the spawned server
  4. Use vibe-trading run -p "..." --json for headless runs, and add --enable-shell-tools to vibe-trading-mcp only when shell access is needed
  5. Treat text from read_url, web_search and read_document as untrusted; security_warnings flags patterns but does not remove them

Questions

Which is better for AI agents, Antigravity CLI or Vibe-Trading?

Vibe-Trading scores 62.2 (B) on agent readiness against Antigravity CLI's 57.4 (C), and leads in 4 of 7 scored categories. Antigravity CLI leads on schema & documentation and agent ergonomics.

Are Antigravity CLI and Vibe-Trading open source?

No open-source release is listed for Antigravity CLI. Vibe-Trading is open source (MIT).

Other comparisons with Antigravity CLI or Vibe-Trading

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