v0.0.459

Version 0.0.459 (July 15, 2026)

• read_file and grep_files work on conversation attachments — uploaded files (JSON, text, logs, PDFs, images) are now readable by the same read_file/grep_files tools that serve file connections: leave connection_id empty and pass the file's id from the conversation. Windowed reads, PDF page_range, and line-level grep all work over attachments, and the tools appear in the agent's catalog whenever the conversation has files — no file connector required.
• The agent can look at images — including ones from earlier turns — read_file on an attached image shows it to a vision-capable model, so "what's in the screenshot I sent earlier?" now works (previously only images attached to the current message were visible, once). Scanned/image-only PDF pages render to vision per requested page_range instead of always the first 8 pages.
• Attachments are decidable before reading — the agent's file index now includes a content taste for every type: a 500-char head for JSON/text/logs, dimensions for images, and "N of M pages previewed — use page_range" for long PDFs (previously these rendered as "unsupported"). Conversation history records which files arrived with which message and what was read or viewed (pages 2-2 of 38, "viewed by vision"), so later turns can resolve "that file from earlier" by id.