tar/tgz stat-gated at 256MB, zip entries reject oversized declared sizes; raw ?q= sqlite capped at 1000 rows; giant-file reads stop scanning to EOF; multi-range reads slice one pass; malformed URL selectors error instead of dumping; archive-root selectors, member tag immutability, case-insensitive selector tokens, session-pinned artifact lookups, shared+escaped suffix globs; archive dir listings honor offsets; binary files get a NUL-sniff notice.
- Added archive format sniffing to identify ZIP, TAR, and TAR.GZ from file bytes.
- Added MIME/extension and header-based routing for notebook, sqlite, and archive payloads.
- Added archive entry rendering with slash-terminated dirs and size suffixes.
- Added tests for archive, sqlite, notebook, and fallback binary dispatch scenarios.
- Parsed zip metadata via central directory and lazy ranged reads.
- Inflated member contents only when a specific entry is read.
- Prevented large or corrupt zips from freezing directory reads.
- Consolidated AI provider imports through register-builtins and moved Gemini/Antigravity header helpers to a shared module.
- Added lazy loading for heavy providers and SDK-backed modules with cached initialization to trim startup cost.
- Converted markdown conversion helpers to async and awaited htmlToBasicMarkdown in affected scraper and kernel output paths.
- Parsed bundled agent definitions on-demand and moved BrowserTool prompt rendering behind a memoized getter.
- Added cached validation/error handling paths by replacing AJV runtime checks with Value.Check and trimming validation error output.
- Replaced Python-based markitdown CLI with native markit-ai library for document and notebook conversion.
- Added support for converting Jupyter notebooks (.ipynb) to markdown via markit-ai integration.
- Created markit utility module with file/buffer conversion wrappers and standardized error handling.
- Removed markitdown from Python tools manager and eliminated external CLI dependency.
- Updated fetch, read, and scraper tools to use new markit conversion API across codebase.
- Added test coverage for ipynb file conversion through markit utility.
- Added archive reading support for .tar, .tar.gz, .tgz, and .zip files with virtual subpath syntax (archive.ext:path/inside/archive).
- Added archive listing and subdirectory navigation capabilities to explore archive contents without extraction.
- Added /tools slash command to display visible agent tools and their capabilities.
- Implemented ArchiveReader module with openArchive(), parseArchivePathCandidates(), and archive content extraction methods.
- Added fflate 0.8.2 dependency for archive decompression support.
- Added comprehensive test coverage for TAR, TAR.GZ, TGZ, and ZIP archive reading with fixture generation utilities.
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