Read a local image file (png, jpg, webp, gif, bmp, tiff, avif, heic) with a local vision model. Returns a verbatim transcription of all visible text plus a structural description of UI, charts, and diagrams. Use this for screenshots, error dialogs, design mockups, whiteboard photos, and graphs. Supply question to ask about one detail instead of transcribing the whole image.

Read a local PDF. Pages with a text layer are extracted exactly and for free; scanned or image-only pages are rendered and read by a local vision model. Use pages (e.g. "1-5" or "2,7") to limit the work on long documents, and question to search for one fact instead of transcribing everything.

Report whether Ollama is reachable, whether the configured vision model is pulled, and whether poppler is installed for PDF rendering. Call this first when read_image or read_pdf fails.