kill9 is a desktop workspace where AI agents help you build software. You bring your own AI provider, describe what you want, and specialist agents plan, implement, test, and review the work.
The workspace rail
The left side of the app has seven surfaces you switch between using Mod+1 through Mod+7.
Inbox (Mod+1) is where work arrives. GitHub issues, Linear tickets, and agent notifications all land here. Click Work on this on any item to start an agent on it immediately.
Work (Mod+2) is the main chat surface. This is where you talk to agents, ask questions, and direct work. Each initiative and story has its own chat session with full context and history.
Plan (Mod+3) shows your initiatives, epics, and stories in board and list views. Create initiatives, move them through workflow states, and track progress.
Docs (Mod+4) is a three-pane workspace for writing PRDs, ADRs, and design docs. The agent chat pane helps you draft, and the comments pane lets your team review.
Mockups (Mod+5) is where you create and review visual designs before writing code. Generate variants, compare them, and select the winner.
Review (Mod+6) is the git diff viewer. Examine agent-made changes, accept or reject files, and request revisions.
Tools (Mod+7) is where you browse and customize agents, workflows, skills, MCP servers, and hooks.
What the agents do
Agents are specialists with defined roles:
- kdev writes and edits code
- ktest verifies that code works
- kreviewer finds bugs and problems
- karch makes technical decisions
- kpm defines product requirements
- klead breaks work into stories
- k9 orchestrates the whole pipeline
You describe what you want in Work (Mod+2), and the right agents are dispatched. For a feature, kpm writes the PRD, karch writes the ADR, klead breaks it into stories, kdev implements them, ktest verifies, and kreviewer checks the code. For a bug, kdev reproduces it, presents fix options, implements the chosen approach, and ktest adds regression coverage.
Platforms
kill9 runs on macOS Apple Silicon, macOS Intel, and Linux x64. Windows builds are coming soon.
Related pages
- Getting started — your first ten minutes with kill9
- Agents — the full agent roster and when to use each
- Workflows — how work moves through states