Task gains a RequiresVision bool; filterFeasible enforces it on
both the primary feasibility pass and the last-resort fallback
(no degradation to a non-vision arm — the model literally cannot
consume image bytes).
Ollama discovery now probes /api/show for vision capability:
- details.families containing "clip" / "mllama" / "*vl"
- capabilities array containing "vision" (newer Ollama)
- name-prefix fallback for releases that predate either
(llava, qwen2.5-vl, llama3.2-vision, moondream, pixtral, etc.)
OllamaProbeResult replaces the map[string]bool tool cache so the
single /api/show call can populate tools + vision + ctx-size in
one probe. DiscoverOllama / DiscoverLocalModels signatures updated;
nil-cache callers in cmd/gnoma keep working unchanged.
RegisterDiscoveredModels propagates SupportsVision into the arm's
Capabilities.Vision.
Tests cover RequiresVision filtering in both the happy path
(vision-only arm chosen when image present) and the fallback path
(non-vision arm rejected even as last resort).
vikingowl
a2b7f8eb3f