TwineGuard by StupidPotatoe16

TwineGuard adds a DevTools panel to Firefox for browsing and editing Twine-style game variables while your story runs.

Open a game tab, open DevTools, and select the TwineGuard panel to see a live tree of your story's state.

Features:

Recursive search across variable keys and values
Favorites: pin frequently used variables
Groups: organize variables into named collections
Inline editing of strings, numbers, and booleans
Locks: freeze a value so the story can't overwrite it
Multipliers: apply numeric scaling rules to variables or groups
Persistent settings per story across sessions
Supported engines: SugarCube, Harlowe, Snowman, and Chapbook.

TwineGuard is open-source under the MIT License.