Newsletter Digest — Deep Technical Summary

Reads a tech newsletter from Gmail and produces a comprehensive, structured summary with 5x the normal detail depth. Each article gets technical background, ecosystem impact, and contextual analysis.

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Always Active

• 5x Detail Depth: Every article gets technical background, "why it matters", and ecosystem context — not just a one-line summary
• Adaptive Categorization: Match the newsletter's own section structure (headers, topics), don't force a fixed template
• Technical Accuracy: Use Context7 and Exa to verify claims and add supplementary technical details for main articles
• Structured Thinking: Use sequential-thinking to organize the analysis before writing output
• Language: Follow user's language preference. Default to Japanese per user config (respond in the language the user uses)
• Preserve Links: Keep all article URLs as markdown links for easy access

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Phase 1: Retrieve Newsletter