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LeetSession – Code obsession

Work-around for LeetCode’s removed “Session Management” feature (see issue #22883). It emulates the legacy behaviour by creating a self-updating favorite list that contains every problem and automatically syncs it.

作者
wallandteen
日安装量
0
总安装量
2
评分
0 0 0
版本
1.0.0
创建于
2025-07-29
更新于
2025-07-29
大小
19.3 KB
许可证
MIT
适用于

Install with Tampermonkey License: MIT PRs welcome

LeetSession – Code obsession 🧠⚡️

Userscript that revives LeetCode’s removed “Session Management” workflow by emulating a brand-new sessions: it creates a self-updating favorite list containing every problem while leaving all other lists and your global progress untouched.
Works automatically on both leetcode.com/problemset/* and leetcode.com/problem-list/* pages. ⭐️ If you find the script useful, please give the repo a star — it really helps!

Table of Contents

  1. Why?
  2. Features
  3. Demo
  4. Installation
  5. Usage
  6. How It Works
  7. FAQ / Troubleshooting
  8. Contributing
  9. License
  10. Acknowledgements

Why?

In 2024 LeetCode silently disabled “Create” button in Session Management section globally
(issue #22883).

LeetSession brings the feature back without touching LeetCode’s backend data:

  • every click on New Session spawns a fresh private list that already contains all problems;
  • solved counters in that list are reset only once when creating a new session;
  • the list auto-syncs daily, so brand-new problems appear automatically without affecting your progress;
  • your existing favorite lists and overall profile stats remain exactly as they were.

Features

  • One-click "New Session" - Creates fresh problem list
  • Auto-naming - DD MMM YYYY [LS] format
  • Complete problem set - All 3600+ problems included
  • Daily auto-sync - Silent background updates
  • Zero side effects - Never touches other lists
  • Interruption recovery - Resumes if creation fails
  • Rate limit handling - Automatic retry with backoff

Demo

LeetSession screenshot

Installation

Prerequisite: a userscript manager such as Tampermonkey or Violentmonkey.

Browser Userscript Manager
Chrome / Edge / Brave Tampermonkey
Firefox Violentmonkey

Quick Install

  1. Install the manager for your browser.
  2. Click Install LeetSession → leetsession.user.js.
  3. Confirm the prompt in your userscript dashboard.
  4. Go to https://leetcode.com/problemset – the New Session button appears under Study Plan in the left bar.

Automatic Updates

The script defines an @updateURL, so your manager will fetch new versions automatically.

Usage

  • Click New Session whenever you want to start from scratch.
  • Keep the [LS] tag in the list name if you want daily auto-sync.

How It Works

  • Relies on GraphQL mutations accepted by LeetCode (createEmptyFavorite, batchAddQuestionsToFavorite, resetFavoriteSessionV2, updateFavoriteNameDescriptionV2).
  • Operates only on lists that contain [LS]; other lists are never queried or modified.
  • Stores the last sync date in localStorage and runs silently every 24 h.
  • Detects interrupted creation (closed tab, crash) and resumes on the next visit.

FAQ / Troubleshooting

How many sessions can I create? **Unlimited.** Each click creates an independent list (`#1`, `#2`, …).
Can I rename a session or edit its description? Yes. Keep the tag **`[LS]`** anywhere in the name to preserve auto-sync.
Can I remove some problems from the list? You can, but if the name still contains **`[LS]`** the script will add every missing problem back during the next sync. Your progress (solved problems) will be preserved.
Button doesn’t show up * Reload the page. * Ensure the userscript manager is **Enabled**. * Check that no content blocker removes sidebar elements.
Stuck on “⏳ Creating session…” You likely hit LeetCode’s rate limit (HTTP 429). Leave the tab open; the script retries automatically with exponential back-off.
What happens if I close the browser during creation? The script detects incomplete sessions and automatically resumes creation on the next visit. Look for sessions with `[CREATING]` in the name.
Can I use this with multiple LeetCode accounts? Yes, each account maintains its own sessions independently. The script only operates on lists containing `[LS]`.
How do I know if auto-sync is working? Check the browser console for `[LeetSession]` logs. You'll see sync messages when new problems are added.

Contributing

PRs are welcome! ⭐️

License

MIT © 2025 Valentin Chizhov

Acknowledgements

  • LeetCode team for keeping the legacy mutations alive
  • Community discussion in #22883 – inspiration for this script

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