- Add Biome as formatter and linter (replaces Prettier)
- Configure Husky + lint-staged for pre-commit hooks
- Add VS Code settings for format on save
- Ignore components/ui/ (shadcn generated code)
- Remove semicolons, use 4-space indent
- Reformat all files to new style
The prose plugin was overriding text colors for markdown elements
(bold, headings, etc.) in user message bubbles, causing text to
blend with the dark primary background.
Added conditional styling that forces all child elements in user
messages to use text-primary-foreground color with !important to
override prose defaults.
- Add toggle button in chat input area to switch between min and sketch themes
- Show warning dialog before switching (clears messages and diagram)
- Persist theme selection in localStorage
- Default theme is minimal (hides shapes sidebar)
* feat: add markdown rendering for chat messages
- Add react-markdown and @tailwindcss/typography for markdown support
- Use prose styling for assistant message formatting
- Fix Radix ScrollArea viewport horizontal overflow issue
- Add CSS fix for viewport width constraint
* feat: add resizable chat panel
- Replace fixed width layout with react-resizable-panels
- Chat panel can be resized by dragging the handle
- Panel is collapsible with min 15% and max 50% width
- Ctrl+B keyboard shortcut still works for toggle
- Remove 15s streaming timeout detection (too slow, added complexity)
- Remove status indicator (issue resolved by switching model)
- Remove streamingError state and related refs
- Simplify onFinish callback (remove 503 detection logging)
- Remove errorHandler function (use default AI SDK errors)
The real fix was switching from global.* to us.* Bedrock model.
This removes ~134 lines of unnecessary complexity.
- Add error prop to ChatInput to detect error state
- Update isDisabled logic to allow retry when there's an error
- Pass combined error (SDK error + streamingError) to ChatInput
When Bedrock returns 503 ServiceUnavailableException before streaming
starts, AI SDK's onError fires but status may not transition to "ready".
This fix ensures the input is re-enabled when an error occurs, allowing
users to retry their request.
Fixed an issue where files from previous examples would persist when clicking on "Animated Diagram" or "Creative Drawing" examples that don't require image uploads.
The React state update (setChartXML) is async, so chartXMLRef wasn't updated
when edit_diagram tool callback checked it. Now we update the ref directly
in onFormSubmit, handleRegenerate, and handleEditMessage before sending.
DrawIO iframe export was unreliable on Vercel due to network latency,
causing edit_diagram tool to hang. Now uses chartXML from context directly,
falling back to export only when no cached XML exists.
- Update log-feedback API to find existing chat trace by sessionId and attach score to it
- Update log-save API to create span on existing chat trace instead of standalone trace
- Add thumbs up/down feedback buttons on assistant messages
- Add message regeneration and edit functionality
- Add save dialog with format selection (drawio, png, svg)
- Pass sessionId through components for Langfuse linking
- Extract system prompts to dedicated lib/system-prompts.ts module
- Add extended system prompt (~4000 tokens) for models with higher cache minimums (Opus 4.5, Haiku 4.5)
- Clean up debug logs while preserving informational and cache-related logs
- Improve code formatting and organization in chat route
- Add handleExportWithoutHistory function for fetching current diagram state without saving to history
- Update onFetchChart to accept saveToHistory parameter (defaults to true)
- edit_diagram tool now fetches with saveToHistory=false since it only needs the current state
- Only the initial form submission saves to history as intended
- Switch from Geist to Plus Jakarta Sans (body) and JetBrains Mono (code)
- Add visual diff display for edit_diagram tool showing search/replace pairs
- Update color palette to clean modern OKLCH-based scheme
- Improve chat message display with better styling and animations
- Add syntax-highlighted code blocks for XML/JSON output
- Improve scrollbar and shadow utilities
- Add save button in chat input area with download icon
- Create SaveDialog component for filename input
- Export current diagram as .drawio file format
- Support custom filename with default timestamp-based name
Closes#53
- Add XML validation in handleDisplayChart before calling onDisplayChart
- Only update previousXML ref when validation passes to prevent state desync
- Add console error logging for failed validations
Fixes#5
- Remove sponsor iframe from chat panel header
- Add notice about switching from Opus 4.5 to Haiku 4.5 due to high traffic
- Add sponsor button next to Support & Contact section title
- Update all i18n about pages (EN, CN, JA)
- Add essential draw.io XML structure rules to system prompt
- Include critical rules about mxCell nesting (all must be direct children of root)
- Add shape/vertex and connector/edge examples with proper structure
- Improve tool description for display_diagram with validation rules
- Update xml_guide.md with better swimlane examples showing flat structure
- Add client-side XML validation to catch nested mxCell errors early
Helps address issues #40 (local Ollama models not working) and #39 (mxCell nesting errors)
- Add GitHub Sponsors iframe button to chat panel header
- Update README with badges and language switcher
- Add Chinese README (README_CN.md)
- Add Japanese README (README_JA.md)
- Reorganize examples section in README
- Add lib/cached-responses.ts with pre-generated XML for 4 example prompts
- Modify chat API route to check cache before calling AI
- Cache returns instant response (~0.26s) vs AI generation (~20-25s)
- Add "(cached for instant response)" text to example panel
- Cache only activates for first message with empty diagram
- Add Examples section to README with 2-column grid layout
- Include demo images for GCP, AWS, Azure, animated connectors, and cat
- Update example panel buttons with clearer labels
- Add animated connector example button
- Add instruction for animated connectors in chat route
- Remove header from main page for clean editor-only interface
- Create /app/about/page.tsx with comprehensive SEO content (1000+ words)
- Add About link next to 'Next-AI-Drawio' title in chat panel
- Add GitHub icon link to /about page navigation
- Update sitemap.ts to include /about page (priority: 0.8)
SEO improvements following industry best practices:
- Separate marketing content from app interface (Figma/Canva/Miro approach)
- Server-rendered /about page for optimal crawlability
- Clean URL structure for better internal linking
- Multiple indexable pages for broader keyword coverage
- Proper semantic HTML: H1, H2, H3, article, section tags
- 1000+ words of keyword-rich content
/about page includes:
- AI diagram generator overview with value proposition
- 6 detailed feature sections (AI creation, AWS diagrams, image replication, etc.)
- 3 popular use cases (AWS architecture, flowcharts, system design)
- Step-by-step usage guide (4 steps)
- Benefits section (save time, precision, free, privacy)
- Clear call-to-action with link back to editor
- GitHub link in navigation for social proof
This follows Google-approved architecture and avoids hidden content penalties.
- Enhanced metadata with Open Graph and Twitter Card tags
- Added robots.ts for search engine crawling directives
- Added sitemap.ts for site structure
- Improved image alt text for better accessibility and SEO
- Added JSON-LD structured data (Schema.org SoftwareApplication)
- Configured proper meta tags including keywords, authors, and robots settings
- Set metadataBase for proper URL resolution
- Add OpenRouter provider support with @openrouter/ai-sdk-provider
- Fix input not disabling during 'submitted' state for fast providers
- Apply disable logic to all interactive elements (textarea, buttons, handlers)
- Clean up env.example by removing model examples and separator blocks
- Upgrade zod to v4.1.12 for compatibility with ollama-ai-provider-v2
- Add debug logging for status changes in chat components
- Add toggle button in chat panel header
- Implement collapsed state with thin vertical strip
- Add Ctrl+B keyboard shortcut to toggle visibility
- Canvas expands to full width when chat is hidden
- Smooth 300ms transition animation
- Updated system prompt to allow up to 3 retry attempts with adjusted search patterns
- Simplified error response to provide current diagram XML and reference retry policy
- AI model self-manages retries based on system instructions
- Add formatXML function to format single-line XML with proper indentation
- Format chartXml after fetching to ensure consistency
- Update replaceXMLParts to handle single-line XML with substring fallback
- Improve edit_diagram tool guidance with SEARCH/REPLACE best practices
- Add concrete examples to help AI use minimal, targeted edits
