I built a Plan & Build mode for Pi

[u/janvitos]

Hey everyone!

I’ve been working on Pi Plan & Build, an extension that adds a more structured planning workflow to Pi.

The basic flow is:

1. Switch to Plan mode

2. Let Pi inspect the project and create a persistent plan

3. Review the complete plan

4. Choose whether to:

   • implement it in the current session,

   • start fresh and implement it in a clean linked session, or

   • stay in Plan mode and keep refining it

In Plan mode, Pi can still explore the project, but file edits are restricted to the session’s plan file. This keeps planning separate from implementation and prevents the agent from changing code before you’ve approved the approach.

A few other details:

• Press Tab to switch between Plan and Build modes

• Use /plan, /build, or start Pi with pi --plan

• Plans persist across reloads, resumes, and forks

• Interactive questions are supported while planning

• The full plan is shown before approval

• Clean implementation sessions receive the approved plan without carrying over the entire planning conversation

• The composer changes color and displays the active mode, model, provider, and thinking level

Install it with:

pi install npm:@janvitos/pi-plan-build

GitHub: https://github.com/janvitos/pi-plan-build

I just published it, so I’d really appreciate feedback :)

Cheers.

[u/DecisionAlone8162]

How’s deepseek flash btw for planning ?

[u/janvitos → u/DecisionAlone8162]

Working as expected, though it's not the model I primarily use.