Look At - Multimodal File Analysis

Multi-backend vision tool for PDFs, images, diagrams, and other media files. Routes to Gemini CLI (default), GitHub Copilot (GPT-5.4), or the legacy Python API.

Tool Selection Enforcement

Tool Routing Facts

• Read on a media file loads the full content into context regardless of how briefly you look at it — a "quick glance" costs the same thousands of tokens as a full read. Content type, not file size, determines the tool.
• Read on a PDF extracts raw text and loses table structure and visual information; look_at returns it as structured data.
• Gemini's extraction is accurate for most use cases — start with look_at, escalate to Read only if the extraction is insufficient. Defaulting to Read "for exact text" wastes the context this skill exists to save.

Red Flags

• Passing an image, PDF, or screenshot path to Read → use look_at.
• A text-based PDF with structure/tables/charts → still look_at, not Read.

Cost & Context Benefits