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Running agents in parallel is no longer the hard part.
Several tools do it, some of them are free, and one of them is funded and good. Pretending otherwise would insult the person reading this. The difference is what survives when the session ends, and whether anyone can tell you what the work cost.
What every tool in this category already does
Every serious tool here runs agent sessions in parallel, isolates each one in its own git worktree, gives you a board or a list to watch them from, and hands back a diff at the end. A tool that cannot do those four things in 2026 is not really competing.
What almost none of them do once the session ends
Almost none of them keep what an agent learned, or carry it across to your teammates. Almost none refuse an operation you can never undo. Almost none let you share and extend a common skill set, and none of them will tell you what the tokens actually cost.
| Capability | coreCerebrum | Conductor | Vibe Kanban | AgentsRoom | Kanban AI |
|---|---|---|---|---|---|
| parallel agent sessions | Yes | Yes | Yes | Yes | Assistant only |
| git worktree isolation | Yes | Yes | Yes | Yes | No |
| board as the interface | Yes | Workspace list | Yes | Workspace list | Yes |
| memory across sessions | Persistent | Not named | Not named | Not named | Not named |
| memory shared across the team | Synced | Not named | Not named | Not named | Not named |
| token and cost accounting | Per tool, per turn | Not named | Not named | Not named | Not named |
| destructive-operation guard | Hard deny, 10 hooks | Not named | Not named | Not named | Not named |
| shared skills and commands | 24 and 22 | Not named | Not named | Agent personas | Not named |
| dispatched review agents | 5, by diff | Not named | Visual review | Yes | Not named |
| docs sync | Included | Not named | Not named | Not named | Not named |
| work beyond the repository | Cowork surface | No | No | Non-code agents | Task planning |
| cloud execution | Local only | Yes | Local | Local | Hosted |
| mobile app | No | Yes | No | No | No |
| real-time multiplayer | No | Yes | No | No | No |
| SSO and SCIM | No | Enterprise | No | No | No |
| open source | No | No | Yes | No | No |
| price | $150 / user / mo | Free, $50, $60 / user | Free | Free tier | Tiered |
TOON is a data format, not an agent board.
It comes up because it lives in the same corner of developer tooling, but Token-Oriented Object Notation is a compact encoding of the JSON data model for use inside LLM prompts. It has no board, no agents, no worktrees and no sessions. Putting it in a feature table beside these products would be comparing a file format to a workstation.
If anything, it is complementary: it exists to reduce token count, which is the same problem our cost accounting is pointed at from the other end.
Buy theirs if you need cloud or mobile
If you need agents running while your laptop is shut, a phone app, live multiplayer, or SSO and SCIM today, buy Conductor. We do not offer any of those.
Buy neither if you run one agent occasionally
A single session in your terminal is free and works well. Come back when one window has become the thing slowing you down.
Buy ours if your sessions keep relearning the same things
Buy ours if nobody can tell you what the tokens cost, and if you want an agent that is structurally incapable of force-pushing to main.