One Day the Report Was Dated Last Year
I opened the weekly summary one of our dream team bots had posted, and the title carried last year's date. The content was fine, but「this week」had been written as October of last year. Over a month I counted 6 slips like this. They look minor, but they scramble the order when you search for files later, which gets annoying fast.
The Cause Was Surprisingly Simple
A bot does not actually know what day it is. It guesses from clues in the conversation or from memory, and if your reference files are full of old dates, it drifts toward them. It was not wrong because it was dumb. It was wrong because it had no clock.
Try It Yourself: Hand the Bot a Clock
1. On your Windows device, open the instruction file you give the bot.
2. Add this one line at the very top.
Today's date: 2026-10-19 (Mon). Calculate every「this week」and「yesterday」from this date.
3. Editing it by hand every day is a chore, so ask Claude Code:「Create a scheduled task that replaces the date in the first line of this file with today's date every morning.」
4. Have the bot also write a「written as of」date at the bottom of its output, so you can cross-check at a glance.
The Result
After a month, date slips went from 6 to 0. As a bonus, summaries of「what happened yesterday」got more accurate too, because once the bot had an anchor, it handled relative time far more reliably.
Today's One Line
Before making your bot smarter, give it a clock. A clock takes just one line.