pi-dedumbify

Pi extension for executable spaced repetition with FSRS scheduling

Packages

Package details

extension

Install pi-dedumbify from npm and Pi will load the resources declared by the package manifest.

npm repo home report

$ pi install npm:pi-dedumbify

Package: pi-dedumbify
Version: 0.1.0
Published: Mar 15, 2026
Downloads: 17/mo · 5/wk
Author: lukaskawerau
License: MIT
Types: extension
Size: 69.4 KB
Dependencies: 3 dependencies · 2 peers

Pi manifest JSON

{
  "extensions": [
    "./src/index.ts"
  ]
}

Security note

Pi packages can execute code and influence agent behavior. Review the source before installing third-party packages.

README

pi-dedumbify

Pi extension for executable spaced repetition with FSRS scheduling.

Write real TypeScript or Python code, run tests in an isolated temp workspace, then rate the review to schedule the next interval.

Install in pi

From npm:

pi install npm:pi-dedumbify

From GitHub:

pi install git:github.com/lukaskawerau/pi-dedumbify

Then restart pi or run /reload.

What it does

centered review overlay inside pi
user-authored global card deck
TypeScript cards graded via Vitest
Python cards graded via uv + Pytest
FSRS scheduling via ts-fsrs
automatic review persistence in SQLite

Commands

/sr — auto-sync cards, then open review modal
/sr-sync — force a card rescan + DB sync
/sr-stats — sync cards, then show DB-backed deck stats
/sr-validate — structural validation + run solution tests without writing reviews

Keyboard shortcuts in the modal

tab / shift+tab — switch panes
ctrl+r — run tests
ctrl+s — toggle starter/solution
1 / 2 / 3 / 4 — Again / Hard / Good / Easy
esc — close

Card location

Cards live under:

~/.pi/agent/spaced-rep/cards/

DB lives at:

~/.pi/agent/spaced-rep/fsrs.db

Card format

Each card lives in its own directory.

TypeScript example:

sum-array-ts/
  card.yaml
  prompt.md
  starter.ts
  solution.ts
  tests.ts

Python example:

factorial-py/
  card.yaml
  prompt.md
  starter.py
  solution.py
  tests.py

Minimal card.yaml:

id: sum-array-ts
title: Sum an array of numbers
language: typescript
tags:
  - arrays
  - iteration
timeboxSec: 180
files:
  prompt: prompt.md
  starter: starter.ts
  solution: solution.ts
  tests: tests.ts
runner:
  entry: answer.ts

Local development

cd ~/coding/apps/dedumbify
npm install
npm run check
pi

The repo exposes a project-local extension shim at .pi/extensions/dedumbify.ts, so pi auto-discovers it when started from the repo root.

Status

MVP works.

Implemented:

card discovery + validation
SQLite deck state + review log
grading runners for TS and Python
FSRS scheduling
review modal with answer buffer and autosave on rating

Still rough:

result rendering polish
richer session stats
nicer reveal-solution flow