v5.3.1.

What's Changed

• Add multi-language and kernel-aware notebook support by @moyiliyi in #379
• feat(telemetry): track inline-completion and inline-chat acceptance separately by @pjdoland in #383
• fix(built-in-tools): confine search_files glob matches to workspace by @herikwebb in #386
• fix(claude): preserve attachment context when the prompt is a slash command by @herikwebb in #388
• feat(claude): modernize model defaults and bound inline-completion output by @herikwebb in #389
• fix(claude): derive context token budget from the Claude model in Claude Code mode by @herikwebb in #390
• feat(claude): surface per-turn usage as an opt-in footer by @herikwebb in #391
• fix(built-in-tools): resolve symlink dir containment before probing it by @herikwebb in #387
• chore(deps): update all known-vulnerable dependencies by @pjdoland in #393
• docs(readme): point blog links at nbi.plmbr.dev by @pjdoland in #396
• fix(skills): scope the GitHub import size cap to the skill subpath by @pjdoland in #394

Full Changelog: v5.2.1...v5.3.1