Scored across 32 tools
Most tools target a clear resource and action pair, so agents can generally tell images, layers, filters, PDB, fonts, and recipes apart. The main overlaps are gimp_pdb_call vs gimp_run_python, which both allow arbitrary GIMP operations, and gimp_layer_effects vs gimp_layer_effect, which differ only by plural and could be mis-selected.
All names share the gimp_ prefix and use snake_case, which helps predictability. However, conventions are mixed: some tools are verb-first (gimp_list_images, gimp_open, gimp_export) while others are noun-first with an action parameter (gimp_layer, gimp_path, gimp_select), and gimp_layer_effects vs gimp_layer_effect is an easily confused singular/plural pair.
With 32 tools, this exceeds the 25-tool threshold for a heavy tool surface. While GIMP is a broad domain, several tools are generic escape hatches or overlapping (gimp_pdb_call, gimp_run_python, recipe tools), making the set feel larger than necessary.
The surface covers session lifecycle, image create/open/export/close, layer and mask operations, selections, filters, paths, text, measurement, PDB access, and scripting, so core GIMP automation workflows are largely complete. Minor gaps exist for direct image-level operations like resize, rotate, and undo, though gimp_pdb_call and gimp_run_python can work around those.