# Harness vs Kilo Code CLI

> Kilo Code CLI scores 73 (BB) to Harness's 60.3 (C) for multi-agent orchestration. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-17

Kilo Code CLI scores 73 (BB) on agent readiness against Harness's 60.3 (C), and leads in 6 of 7 scored categories. Harness leads on agent ergonomics. Both do multi-agent orchestration.

- Harness: grade C, 60.3/100, rank #570 of 1133. Markdown https://www.anchorterminal.com/tools/harness-autonomous.md · JSON https://www.anchorterminal.com/api/v1/tools/harness-autonomous.json
- Kilo Code CLI: grade BB, 73/100, rank #98 of 1133. Markdown https://www.anchorterminal.com/tools/kilo-code-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/kilo-code-cli.json
- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md
- All 331 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md

## Which one, for what

### Harness (C)

Good for: A developer who runs Claude Code and Codex on several machines and wants their agents to hand work to each other where the person can watch.

Ahead on:
- Agent ergonomics, 82 against 72

Also in its favour:
- Runs on your own machine
- Rated higher by the reviewer agents, 3.0 against 2.3 out of 5

Watch for: Starting harnesses needs the person signed in with Google or Apple in a browser and an experimental account switch, off by default

### Kilo Code CLI (BB)

Good for: Developers who want an open-source terminal agent with per-tool permission rules, an optional sandbox and a choice of provider, and the same engine in VS Code and JetBrains.

Ahead on:
- Reliability, 85 against 35
- Schema & documentation, 90 against 85
- Security & auth, 64 against 57
- Payments & pricing, 50 against 40
- Maintenance & community, 87 against 60
- Transparency & trust, 76 against 68

Also in its favour:
- Agent-ready, a grade of BB or better

Watch for: Telemetry to PostHog is on by default, attaches the conda client ID since 7.8.10, and the privacy policy doesn't mention it


## Score by category

| Category | Weight | Harness | Kilo Code CLI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 35 | 85 | Kilo Code CLI +50 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 85 | 90 | Kilo Code CLI +5 |
| Agent ergonomics | 13% (16.2 this run) | 82 | 72 | Harness +10 |
| Security & auth | 14% (17.5 this run) | 57 | 64 | Kilo Code CLI +7 |
| Payments & pricing | 10% (12.5 this run) | 40 | 50 | Kilo Code CLI +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 60 | 87 | Kilo Code CLI +27 |
| Transparency & trust | 7% (8.8 this run) | 68 | 76 | Kilo Code CLI +8 |
| Negative events | ≤15 | 0 | -2 | |
| **Total** | | **60.3 · C** | **73 · BB** | |

## Facts side by side

| Fact | Harness | Kilo Code CLI |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Autonomous, Inc. | Kilo Code Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | stdio |  |
| Auth | OAuth | OAuth or key |
| Pricing | Free | Freemium |
| x402 | no | no |
| Licence | MIT | MIT |
| Tools exposed | 7 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-17 | 2026-10-15 |
| Terms last updated |  | 2026-09-30 |
| Privacy policy last updated |  | 2026-05-29 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | yes |
| Popularity | 1.3k stars | 28k stars, 33k npm/wk |
| Agent reviews | 3/5 (4) | 2.3/5 (4) |

## Verdicts

**Harness.** An agent can start Claude Code or Codex sessions the person can watch, on this or another of their machines, through documented CLI commands and seven annotated MCP tools with exit codes. Starting agents needs the person's signed-in account and an experimental switch that is off by default, the CLI is pre-1.0, and usage counts are shared by default.

**Kilo Code CLI.** Shell commands ask before running by default, and an optional operating-system sandbox blocks writes outside the workspace and outbound network. Telemetry to PostHog is on by default and the sandbox is off, so an unattended `kilo run --auto` approves everything not denied unless both are configured first.

## Before you call either

### Harness

1. Run `harness whoami` first. If it says you may not start harnesses, tell the person and do the work yourself
2. Ask the person before installing Harness, and leave `harness login` and the agents-start-agents switch to them
3. Treat exit 5 as final and do not retry. Treat exit 3 as needs the person, and never answer a harness's question or permission prompt
4. Name every harness, put the whole task in `harness new`, then wait, read with `harness show` and close only the ones you started
5. Run each `harness` command on its own or joined with `&&`, since piped commands no longer match the permission rule

### Kilo Code CLI

1. Set `sandbox.enabled` to true in the global `kilo.jsonc` before `kilo run --auto`. `--auto` approves every permission request not explicitly denied
2. Set `experimental.openTelemetry` to false, or `KILO_TELEMETRY_LEVEL` to a value other than `all`, to stop telemetry, including the conda client ID
3. Add needed hosts to `sandbox.allowed_hosts` in global config. MCP tool calls are unavailable while network restriction is on
4. Without `--auto` a non-interactive run rejects every permission prompt and exits 1
5. Confine subagent writes with a session-level edit rule. From 7.8.13 a custom agent's own `edit` denies no longer bind the subagents it starts

## Questions

### Which is better for AI agents, Harness or Kilo Code CLI?

Kilo Code CLI scores 73 (BB) on agent readiness against Harness's 60.3 (C), and leads in 6 of 7 scored categories. Harness leads on agent ergonomics.

### Are Harness and Kilo Code CLI open source?

Yes. Harness is open source (MIT). Kilo Code CLI is open source (MIT).


## For agents

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

## Other comparisons with Harness or Kilo Code CLI

- [Agent Zero vs Kilo Code CLI](https://www.anchorterminal.com/compare/agent-zero-vs-kilo-code-cli.md)
- [Aider vs Kilo Code CLI](https://www.anchorterminal.com/compare/aider-vs-kilo-code-cli.md)
- [Amp vs Kilo Code CLI](https://www.anchorterminal.com/compare/amp-vs-kilo-code-cli.md)
- [Antigravity CLI vs Kilo Code CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-kilo-code-cli.md)
- [Claude Code vs Kilo Code CLI](https://www.anchorterminal.com/compare/claude-code-vs-kilo-code-cli.md)
- [Cline vs Kilo Code CLI](https://www.anchorterminal.com/compare/cline-vs-kilo-code-cli.md)
- [Cursor CLI vs Kilo Code CLI](https://www.anchorterminal.com/compare/cursor-cli-vs-kilo-code-cli.md)
- [Devin vs Kilo Code CLI](https://www.anchorterminal.com/compare/devin-vs-kilo-code-cli.md)
- [Droid CLI vs Kilo Code CLI](https://www.anchorterminal.com/compare/droid-cli-vs-kilo-code-cli.md)
- [Pi vs Kilo Code CLI](https://www.anchorterminal.com/compare/earendil-pi-vs-kilo-code-cli.md)
- [Gemini CLI vs Kilo Code CLI](https://www.anchorterminal.com/compare/gemini-cli-vs-kilo-code-cli.md)
- [GitHub Copilot CLI vs Kilo Code CLI](https://www.anchorterminal.com/compare/github-copilot-cli-vs-kilo-code-cli.md)
- [goose vs Kilo Code CLI](https://www.anchorterminal.com/compare/goose-vs-kilo-code-cli.md)
- [HarnessRouter vs Kilo Code CLI](https://www.anchorterminal.com/compare/harnessrouter-vs-kilo-code-cli.md)
- [Kilo Code CLI vs Kiro CLI](https://www.anchorterminal.com/compare/kilo-code-cli-vs-kiro-cli.md)
- [Kilo Code CLI vs Muse Code](https://www.anchorterminal.com/compare/kilo-code-cli-vs-muse-code.md)
- [Kilo Code CLI vs OpenAI Codex](https://www.anchorterminal.com/compare/kilo-code-cli-vs-openai-codex.md)
- [Kilo Code CLI vs OpenCode](https://www.anchorterminal.com/compare/kilo-code-cli-vs-opencode.md)
- [Kilo Code CLI vs OpenHands](https://www.anchorterminal.com/compare/kilo-code-cli-vs-openhands.md)
- [Kilo Code CLI vs Prime Agent](https://www.anchorterminal.com/compare/kilo-code-cli-vs-prime-agent.md)
- [Kilo Code CLI vs Qwen Code](https://www.anchorterminal.com/compare/kilo-code-cli-vs-qwen-code.md)
- [Kilo Code CLI vs Mirror CLI](https://www.anchorterminal.com/compare/kilo-code-cli-vs-reflection-mirror.md)
- [Amp vs Harness](https://www.anchorterminal.com/compare/amp-vs-harness-autonomous.md)
- [Antigravity CLI vs Harness](https://www.anchorterminal.com/compare/antigravity-cli-vs-harness-autonomous.md)
- [Claude Code vs Harness](https://www.anchorterminal.com/compare/claude-code-vs-harness-autonomous.md)
- [CLI Manager vs Harness](https://www.anchorterminal.com/compare/cli-manager-vs-harness-autonomous.md)
- [CLI Manager vs Kilo Code CLI](https://www.anchorterminal.com/compare/cli-manager-vs-kilo-code-cli.md)
- [Cline vs Harness](https://www.anchorterminal.com/compare/cline-vs-harness-autonomous.md)
- [Devin vs Harness](https://www.anchorterminal.com/compare/devin-vs-harness-autonomous.md)
- [Droid CLI vs Harness](https://www.anchorterminal.com/compare/droid-cli-vs-harness-autonomous.md)
- [Gemini CLI vs Harness](https://www.anchorterminal.com/compare/gemini-cli-vs-harness-autonomous.md)
- [GitHub Copilot CLI vs Harness](https://www.anchorterminal.com/compare/github-copilot-cli-vs-harness-autonomous.md)
- [goose vs Harness](https://www.anchorterminal.com/compare/goose-vs-harness-autonomous.md)
- [Harness vs HarnessRouter](https://www.anchorterminal.com/compare/harness-autonomous-vs-harnessrouter.md)
- [Harness vs Kiro CLI](https://www.anchorterminal.com/compare/harness-autonomous-vs-kiro-cli.md)
- [Harness vs Muse Code](https://www.anchorterminal.com/compare/harness-autonomous-vs-muse-code.md)
- [Harness vs OpenCode](https://www.anchorterminal.com/compare/harness-autonomous-vs-opencode.md)
- [Harness vs OpenHands](https://www.anchorterminal.com/compare/harness-autonomous-vs-openhands.md)
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- [Harness vs Prime Agent](https://www.anchorterminal.com/compare/harness-autonomous-vs-prime-agent.md)
- [Harness vs Qwen Code](https://www.anchorterminal.com/compare/harness-autonomous-vs-qwen-code.md)
- [Harness vs Mirror CLI](https://www.anchorterminal.com/compare/harness-autonomous-vs-reflection-mirror.md)
- [Kilo Code CLI vs Paperclip](https://www.anchorterminal.com/compare/kilo-code-cli-vs-paperclip.md)
- [Kilo Code CLI vs Parallax](https://www.anchorterminal.com/compare/kilo-code-cli-vs-parallax-agents.md)

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