The planning OS for humans and agents

Turn goals into scoped, editable task graphs you can refine, share, or delegate to AI. Built for solo builders, lean teams, and serious momentum.

Structured Planning for AI and Humans Alike

A better way to break down complex tasks and collaborate with AI

Create Plans Understood by Both Humans & Agents

No more prompting chaos. Fission defines structured, inspectable tasks that AI agents can execute—and humans can review.

Break Down Big Goals into Real, Executable Steps

Go from vague ideas to concrete tasks through collaborative refinement. No more one-shot dumps.

Iterate, Refine, and Delegate with Confidence

Use AI to help build and adjust your plan—then delegate tasks to agents or teammates with full control and visibility.

Shared Understanding, Smarter Execution

Fission makes planning collaborative, inspectable, and adaptable—so you can share a common source of truth across humans and AI.

Fission Launch Plan Page

Delegate with Confidence

You stay in control. Delegate as much (or as little) as you want to agents, while keeping humans in the loop for review and oversight.

1.

Plan

Define the task, scope, and desired outcome clearly.

2.

Assign to Agent

Select the right agent and delegate the specific task.

3.

Review Result

Inspect the agent's output, provide feedback, or approve.

The Future of Work Starts With Better Planning

As agents start to take on real execution, the missing link is clear: structured plans.

Fission is the glue between humans and agents, defining what should happen and how. Built for teams, who understand the complexity of executing on ideas, not just brainstorming them.

Join the Waitlist for the Private Beta

We're onboarding early users soon. If you're a good fit, we'll reach out. No spam. No fluff. Just better planning, built with you.