Routines fail nine times out of ten because of the prompt, not Claude. Three rules separate the ones that work first time from the ones that need two days of troubleshooting.
Rule 1: Be specific about what you want
❌ Too vague
✅ Specific
Rule 2: Tell Claude exactly where the output goes
Don't make it guess the destination
Rule 3: Specify the format
Say exactly how you want the output structured
Putting it together: a tight routine prompt
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