Overriding Claude Desktop's server-side GrowthBook flags locally. For the short version, see Feature Flag Overrides in the README.
Claude Desktop gates many features behind server-side GrowthBook flags with no built-in local override. This package adds one: ~/.config/Claude/claude-desktop-extra.jsonc (per-profile: the profile's userData dir; auto-created with a commented template on first launch). It is the same config file the Custom Themes use - one file for both. Config files from the previous package name (claude-desktop-bin.jsonc, legacy claude-desktop-bin.json) are picked up automatically - the file is migrated to the new name on first launch, nothing to do. Uncomment an entry to activate it - comments are allowed:
The file is re-read on every flag load (startup and each periodic refresh) and overrides win over the server rollout; active overrides are logged to logs/claude-patches.log. true/false for switches, numbers/strings/objects for value flags. Most gated features are wired up while the app starts, so restart after changing a flag.
Full flag catalog: the auto-created template lists every GrowthBook flag the app reads from its feature store, each commented out with a short description - browse it here: docs/claude-desktop-extra.jsonc. It reflects the version noted in the file header; CI verifies it stays in sync with the shipped template.
Or flip them in the app: Settings → Extra → Anthropic Features renders the same catalog as switches, pre-set to what your account actually gets, and writes your changes to growthbookOverrides in claude-desktop-extra.json (it offers a Restart now button, for the reason above). Value-carrying flags are shown read-only, and a flag you set by hand in the .jsonc stays owned by that file - hand edits win per flag ID and the panel will not overwrite them.
Scope and caveats: flag IDs are Anthropic-internal and can vanish or change meaning in any release; this is unsupported expert territory - if the app misbehaves, empty the file first. The Computer Use patch forces its own enable gate directly and doesn't consult this file, and server-side account capabilities can't be overridden locally at all. Hardware Buddy (2358734848) is force-enabled on Linux through this same store-override mechanism, so a "2358734848": false entry here opts back out.
{ "growthbookOverrides": { "1129419822": true // ENABLE_TOOL_SEARCH - tool search in local agent sessions } }