Problem

When AI returns multiple JSON code blocks in a single response (e.g., raw workflow + structured response), the workflow is not applied to the canvas. Instead, only the explanatory text is displayed.

Current Behavior

1. User requests workflow refinement
2. AI returns: explanation + json { workflow } + more text + json { status: "success", ... }
3. ❌ Parser extracts invalid JSON (mixing content from different blocks)
4. ❌ Parse fails → treated as "clarification" → workflow not applied

Expected Behavior

1. User requests workflow refinement
2. AI returns multiple JSON blocks
3. ✅ Parser correctly extracts the structured response with status field
4. ✅ Workflow is applied to canvas

Solution

Improved parseClaudeCodeOutput function in claude-code-service.ts to properly handle multiple JSON blocks.

Changes

File: src/extension/services/claude-code-service.ts

1. Added extractAllJsonBlocks() helper function

   • Uses non-greedy regex to extract each JSON block individually
   • Returns array of JSON content strings

2. Improved Strategy 3 parsing logic

   • Extract all JSON blocks using the new helper
   • Search from end to find block with status field (structured response format)
   • Fallback to last block if no status field found

// Before (buggy)
const jsonBlockStart = trimmed.indexOf('```json');    // First block start
const jsonBlockEnd = trimmed.lastIndexOf('```');      // Last block end (wrong!)

// After (fixed)
const jsonBlocks = extractAllJsonBlocks(trimmed);     // All blocks as array
// Find block with 'status' field, searching from end

Impact

• ✅ Fixes AI refinement not applying workflow when multiple JSON blocks returned
• ✅ Also improves AI generation (new workflow) parsing
• ✅ Backward compatible: single JSON block behavior unchanged
• ✅ No breaking changes

Testing

• Manual E2E testing: multiple JSON blocks case
• Manual E2E testing: single JSON block case
• Code quality checks passed (npm run format && npm run lint && npm run check)
• Build passed (npm run build)

🤖 Generated with Claude Code