{
  "id": "08-quiet-hours",
  "title": "Quiet Hours",
  "problem": "Knowledge workers lose 2–3 hours per day to fragmented calendars — meetings scheduled mid-deep-work, no time long enough to make progress on anything substantial. Existing focus-time tools are either too rigid (block 9am–noon every day) or too easily overridden by colleagues.",
  "targetUser": "Individual contributors and engineering managers at 50+ person companies that use Google Calendar or Outlook and have collaborative cultures (lots of ad-hoc meetings).",
  "desiredOutcome": "Each user reliably gets at least 2 contiguous deep-work blocks per week without it costing them political capital.",
  "initialHypothesis": "If the tool can negotiate the protected blocks invisibly (proposing alternative meeting times that work for both parties), users get focus without the social cost of saying no.",
  "constraints": [
    "Read-write Google Calendar and Outlook (Microsoft Graph) integration",
    "Must respect timezone differences explicitly in proposals",
    "No automatic blocking without user confirmation for the first 30 days (build trust)"
  ],
  "meta": {
    "isHoldout": false,
    "expectedDifficulty": "medium",
    "testsFor": ["productivity", "calendar-integration", "constraint-heavy"]
  }
}