Scored across 42 tools
Most tools map to a distinct resource+action pair (image, layer, selection, color, filter, text). There is some overlap: gimp_status and gimp_list_images both report open images, and gimp_pdb_call and gimp_run_python are broad escape hatches that can accomplish many of the same things, but descriptions clarify intent well.
Every tool uses the gimp_ prefix followed by a consistent snake_case verb_noun pattern (gimp_open_image, gimp_delete_layer, gimp_create_*, gimp_list_resources). Naming is highly predictable throughout.
42 tools is heavy and pushes into the lower band, but GIMP is a genuinely large domain (images, layers, selections, color, filters, PDB, scripting) so most tools are justified. A few, like the overlapping status/list and pdb/run_python pairs, could be consolidated.
The surface covers the full image lifecycle: create/open/close/save/export/duplicate, layer CRUD and ordering, selection creation and modification, color/context, drawing, text, filters, PDB introspection and Python escape hatches. No obvious domain gaps remain.