The document_query tool logs its message as its own `document_query` type with an `icon://manage_search Querying: <document>` headline when queries are supplied and `Reading: <document>` without them, naming the first document and appending `+ N more` for multi-document queries. A plugin message handler renders it as a DOC badge with blue and blue-violet accents across modes, each clearly bluer than the a2a chat family so document queries read like the other dedicated tool surfaces. Agent-facing failure messages render from plugin prompt files, and the Q&A answer streams into the tool log while the model writes it; helpers built without the streaming callback still answer without streaming. Regression tests cover the log entry, headline words, and empty-query reading mode.
Validation: pytest tests/test_document_query_tool_ui.py tests/test_document_query_fallback.py
Disable LiteParse OCR automatically for PDFs at or above the configured page threshold, independent of sampled text density. Add adaptive index chunk sizing for large extracted documents so first-run document_query calls avoid spending the full batch timeout embedding thousands of small chunks. Update the settings UI, README, dependency hook, and regression tests for the new behavior.
Add an adaptive OCR heuristic that samples PDF text density and disables LiteParse OCR for large text-rich PDFs before the OCR path reaches timeout territory.
Keep LiteParse isolated in a subprocess regardless of stale user config, remove the subprocess toggle from the settings UI, and raise the default LiteParse worker count to 2 for a safer multi-chat speedup.
Update Document Query docs and focused tests for the new heuristic, mandatory isolation, and worker default.
Expose the main Document Query parser, retrieval, fetch, LiteParse/OCR, and fallback controls in the plugin settings UI. Add a generated 256x256 JPEG thumbnail under the plugin size limit and cover both the settings wiring and thumbnail constraints with focused tests.
Add a Document Query plugin settings panel that maps to the existing parser_concurrency runtime limit, with a focused regression test so the UI remains wired to the backend setting.
