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# Release Summary: API Reference Book

- Source: https://docs.crawl4ai.com
- Version: v0.8.10-9-g59efd08
- Output format: html
- Public only: yes
- Run health: **🟢 good**

## Build
- Pages in PDF/HTML book: 61
- Chapters: 9

## Crawl
- URLs discovered: 62
- URLs crawled: 61
- Crawl success: 61/61 (100.0%)
- Truncated at 50,000 chars: 8
- Shell pages (SPA shells): 0

## Extraction Quality
- Successful LLM extractions: 58
- Fallback pages (HTML parser): 3 (4.9%)

### Failed Extraction Details (first 5)
- **https://docs.crawl4ai.com/api/async-webcrawler/**: Finish Reason = `unknown`, Error = `JSON parsing failed`
- **https://docs.crawl4ai.com/basic/installation/**: Finish Reason = `unknown`, Error = `JSON parsing failed`
- **https://docs.crawl4ai.com/core/quickstart/**: Finish Reason = `unknown`, Error = `JSON parsing failed`

## Self-Contained Output
- Inline images: enabled (threshold: 2000000 bytes)
…