Harness Active Source ?

Junie

JetBrains coding agent for the terminal and JetBrains IDEs, with plan-first task execution.

Get Junie 2 methods
curl -fsSL https://junie.jetbrains.com/install.sh | bash
Pricing Freemium See pricing ↗

Junie Lite is free in every JetBrains account; agent usage is billed through JetBrains AI plans.

  • Junie Lite Free Free model in every JetBrains account
  • AI Pro $10/mo Per user; $8.33/mo billed yearly See plan ↗
  • AI Ultimate $30/mo Per user; $25/mo billed yearly See plan ↗

Prices as listed on 19 Oct 2026.

AboutJetBrains

Junie is JetBrains' coding agent, available as a CLI and as an IDE integration. It writes a structured plan before editing, follows project guidelines and Agent Skills, and can pick up tasks from GitHub or GitLab issues and pull requests.

Features Verified 16/20 ✓ yes ✗ no ? not verified What do these mean?

Agents

5/5 verified
✓
Multi-provider
Runs agents from several providers side by side?
yes
✓
ACP
Speaks the Agent Client Protocol?
yes
✓
Parallel agents
Runs several agent sessions at the same time?
yes
✓
Subagents
Can an agent delegate work to child agents?
yes
✓
Custom agents
Can you define your own agent roles?
yes

Workflow

4/6 verified
✓
Plan mode
Has an explicit plan / approve-before-edit step?
yes
✓
Worktrees
Keeps parallel work in separate git worktrees?
yes
?
Checkpoints
Can you rewind code and chat to an earlier turn?
not verified
?
Diff review
Includes a built-in diff or review screen?
not verified
✓
PR integration
Opens and tracks pull requests from the session?
yes
✗
Automations
Can it start agent runs on a schedule or event?
no

Integrations

4/5 verified
✓
MCP
Connects to MCP servers and their tools?
yes
✓
Skills
Can you add reusable skills or commands?
yes
✓
Hooks
Can your own scripts run on agent events?
yes
✓
Issue tracker
Can it pull work from GitHub or Linear issues?
yes
?
Browser preview
Can the agent open and drive a web browser?
not verified

Access & safety

3/4 verified
✓
Remote access
Can you follow or control sessions from another device?
yes
?
Cloud sandbox
Runs work in a hosted sandbox rather than on your machine?
not verified
✓
Local sandbox
Does it sandbox what agents can do locally?
yes
✓
Headless / API
Can you run it from scripts, CI, or your own code?
yes
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