# Antigravity CLI vs CLI Manager

> CLI Manager scores 65.8 (B) to Antigravity CLI's 57.4 (C) for multi-agent orchestration. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-14

CLI Manager scores 65.8 (B) on agent readiness against Antigravity CLI's 57.4 (C), and leads in 5 of 7 scored categories. Antigravity CLI leads on agent ergonomics and maintenance & community. Both do multi-agent orchestration.

- Antigravity CLI: grade C, 57.4/100, rank #647 of 1084. Markdown https://www.anchorterminal.com/tools/antigravity-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json
- CLI Manager: grade B, 65.8/100, rank #329 of 1084. Markdown https://www.anchorterminal.com/tools/cli-manager.md · JSON https://www.anchorterminal.com/api/v1/tools/cli-manager.json
- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md
- All 243 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md

## Which one, for what

### Antigravity CLI (C)

Good 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:
- Agent ergonomics, 78 against 63
- Maintenance & community, 68 against 62

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

### CLI Manager (B)

Good for: A developer on macOS who runs several coding agents and wants another agent to start and watch sessions where the person can see and step in.

Ahead on:
- Reliability, 68 against 43
- Schema & documentation, 87 against 78
- Security & auth, 58 against 53
- Payments & pricing, 60 against 30

Also in its favour:
- Free to start without a card
- Open source

Watch for: Once switched on, the API can read, type into and close every session in the app, including the user's own


## Score by category

| Category | Weight | Antigravity CLI | CLI Manager | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 43 | 68 | CLI Manager +25 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 87 | CLI Manager +9 |
| Agent ergonomics | 13% (16.2 this run) | 78 | 63 | Antigravity CLI +15 |
| Security & auth | 14% (17.5 this run) | 53 | 58 | CLI Manager +5 |
| Payments & pricing | 10% (12.5 this run) | 30 | 60 | CLI Manager +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 68 | 62 | Antigravity CLI +6 |
| Transparency & trust | 7% (8.8 this run) | 51 | 54 | CLI Manager +3 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **57.4 · C** | **65.8 · B** | |

## Facts side by side

| Fact | Antigravity CLI | CLI Manager |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Google | solhun (Jeong Kyeonghun) |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  | Streamable HTTP |
| Auth | OAuth or key | API key |
| Pricing | Freemium | Free |
| x402 | no | no |
| 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 |
| Tools exposed | none | 12 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-08 | 2026-10-13 |
| Terms last updated | no date given | 2026-09-14 |
| Privacy policy last updated | 2026-10-01 | 2026-09-14 |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | none | 15 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.

**CLI Manager.** An agent can open visible terminal sessions, type into them, wait and read the screen through 12 typed MCP tools or a documented REST API, and the user can take any session back. The API reaches every open session once enabled, the app runs only on macOS, and none of the last 35 CI runs on the main branch passed.

## 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

### CLI Manager

1. Ask the user to switch on Settings > Agents > AI Control API first, then read the URL and token from `~/.climanager/control-api.json`
2. On `409 awaiting_input`, read the screen and answer with `keys` such as ["down","enter"]. Leave folder-trust and permission choices to the user
3. Stop using a session on `409 disconnected`. The user took it back
4. Treat `timedOut: true` from `wait` as still running, not as a failure, and wait again
5. Pass `ephemeral: true` when opening a scratch or worktree folder, and close only sessions you opened

## Questions

### Which is better for AI agents, Antigravity CLI or CLI Manager?

CLI Manager scores 65.8 (B) on agent readiness against Antigravity CLI's 57.4 (C), and leads in 5 of 7 scored categories. Antigravity CLI leads on agent ergonomics and maintenance & community.

### Are Antigravity CLI and CLI Manager open source?

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


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/antigravity-cli-vs-cli-manager.json, and with the fewest tokens: https://www.anchorterminal.com/compare/antigravity-cli-vs-cli-manager.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "antigravity-cli", "b": "cli-manager"}`. From a terminal: `anchor compare antigravity-cli cli-manager`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json and https://www.anchorterminal.com/api/v1/tools/cli-manager.json

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