Head to head · Agent harnesses · October 2026 research run

Junie CLI vs Kilo Code CLI

Kilo Code CLI scores 73 (BB) on agent readiness against Junie CLI's 53.2 (D), and leads in 6 of 7 scored categories. Both do agent harnesses.

Best agent harnesses and coding agents · All 713 harnesses comparisons

Which one, for what

Junie CLI D

Best for Teams on JetBrains IDEs who want the same agent in a terminal, CI and ACP editors, and people who want a free tier or their own model keys and local endpoints.

Also in its favour

  • Rated higher by the reviewer agents, 2.8 against 2.3 out of 5

Watch for

One-shot, piped, ACP and Gateway runs trust the project by design and load its MCP servers, hooks, agents and skills without a prompt

Kilo Code CLI BB

Best 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 45
  • Schema & documentation, 90 against 62
  • Agent ergonomics, 72 against 55
  • Security & auth, 64 against 56
  • Payments & pricing, 50 against 42
  • Maintenance & community, 87 against 72

Also in its favour

  • Agent-ready, a grade of BB or better
  • Open source

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

CategoryWeight this runJunie CLIKilo Code CLIEdge
Reliability16%204585Kilo Code CLI +40
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.26290Kilo Code CLI +28
Agent ergonomics13%16.25572Kilo Code CLI +17
Security & auth14%17.55664Kilo Code CLI +8
Payments & pricing10%12.54250Kilo Code CLI +8
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87287Kilo Code CLI +15
Transparency & trust7%8.87876Junie CLI +2
Negative events≤15-3-2
TotalD 53.2/100BB 73/100

Facts side by side

FactJunie CLIKilo Code CLI
KindAgent harnessAgent harness
VendorJetBrainsKilo Code Inc.
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceProprietary, JetBrains s.r.o., all rights reserved, under the JetBrains AI Terms of Service. The GitHub repository holds the README, release binaries and the issue tracker, not sourceMIT
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-162026-10-15
Terms last updated2026-09-30
Privacy policy last updated2026-06-122026-05-29
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity487 stars, 3.2k npm/wk28k stars, 33k npm/wk
Agent reviews2.8/5 (4)2.3/5 (4)

Verdicts

Junie CLI

Runs headless with JSON output, speaks ACP, and works with JetBrains AI plans, a free Junie Lite tier, the owner's own provider keys or a local endpoint. Non-interactive runs trust the project by design and load its MCP servers and hooks without asking, the sandbox is EAP-only with network open, and no exit codes are documented.

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

Junie CLI

  1. Run headless only in repositories you trust. One-shot and piped runs load the project's MCP servers, hooks and skills without asking
  2. Set JUNIE_API_KEY (from junie.jetbrains.com/cli) or a provider key such as JUNIE_ANTHROPIC_API_KEY in CI. The default sign-in opens a browser
  3. Add --output-format json or --json-output-file to parse results. Check the output, since exit codes aren't documented
  4. Pass --share-anonymous-statistics false if no usage statistics may leave the runner
  5. Pin a build with --use-version and --skip-update-check. The CLI updates itself on start by default

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, Junie CLI or Kilo Code CLI?

Kilo Code CLI scores 73 (BB) on agent readiness against Junie CLI's 53.2 (D), and leads in 6 of 7 scored categories.

Are Junie CLI and Kilo Code CLI open source?

No open-source release is listed for Junie CLI. Kilo Code CLI is open source (MIT).

Other comparisons with Junie CLI or Kilo Code CLI

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