Project overview

Project Goal

• Build a Jupyter notebook project to teach Claude how to set reminders for future dates
• Requires implementing multiple tools to handle different aspects of the task

Challenges Claude Faces with Reminders

• Current date/time knowledge: Claude knows the current date but doesn't always know the exact time of day
• Time arithmetic: Claude sometimes makes errors when adding durations to dates (e. g. , calculating 379 days from a given date)
• Reminder mechanism: Claude has no built-in capability to actually set reminders; it lacks the mechanism to execute this action

Solution: Three Dedicated Tools

• Get Current DateTime Tool
• Returns the current date and time
• Helps Claude know what "now" is for calculations

• Add Duration to DateTime Tool
• Takes a date/time and adds a duration to it
• Solves the time arithmetic problem
• Example: add 20 days to current date → get resulting date

• Set Reminder Tool
• Allows Claude to actually create reminders
• Provides the mechanism Claude lacks natively

Key Insight

• Each tool solves one specific problem Claude cannot handle alone
• Tools will be implemented one at a time
• Multiple tools work together to enable the full reminder-setting workflow

Takeaways

• Claude lacks built-in capabilities for setting reminders, handling time arithmetic accurately, and knowing the exact current time
• Three dedicated tools solve these gaps: Get Current DateTime, Add Duration to DateTime, and Set Reminder
• Each tool addresses one specific problem, and together they enable Claude to complete the full reminder-setting workflow