Scope

Highlight any text → right-click → instant docs in your sidebar.
No new tab. No context switch.

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The problem

Every documentation lookup is 5 steps:

Select text → Copy → Open new tab → Paste into search → Lose your place

You do this ~30 times a day. Scope collapses it to 2: highlight → right-click.

Supported sources

Source	Mode	Covers
DevDocs	Inline (default)	JS, CSS, React, Node, Go, Ruby, and more
Python Docs	Inline	Python 3 standard library
MDN Web Docs	New tab	HTML, CSS, Web APIs
Can I Use	New tab	Browser compatibility
cppreference	New tab	C and C++ standard library

Switch source at any time from the sidebar dropdown or toolbar popup — preference is saved per-device.

Install

1. Clone or download this repo
2. Open chrome://extensions
3. Enable Developer mode (top-right toggle)
4. Click Load unpacked → select the Scope folder

Requires Chrome 114+ for the chrome.sidePanel API.

How it works

chrome.sidePanel.open() must be called synchronously inside the user-gesture callback — any await before it causes Chrome to throw "may only be called in response to a user gesture":

chrome.contextMenus.onClicked.addListener((info, tab) => {
  chrome.sidePanel.open({ tabId: tab.id }); // sync — no awaits before this

  chrome.storage.sync.get({ preferredSource: 'devdocs' }, ({ preferredSource }) => {
    chrome.storage.session.set({ scopeLookup: { ... } });
  });
});

The sidepanel picks up the data via chrome.storage.onChanged and renders instantly.

License

MIT