Europe and the US changed their clocks a week apart, and calendars everywhere got confused. Why storing a time zone id beats storing an offset, what it means for distributed teams, and why it matters even more now that agents book meetings.
Your AI Bill Now Comes With a Report Card. Who Marks It?
Anthropic now tells companies what their Claude spend bought, and pools the budgets. Useful, but tokens are the new lines of code: measure outcomes, read the friction list, and remember who is marking the report card.
40% of Pull Requests Start With an Agent: Who Reviews Them?
GitHub’s Octoverse says agents started more than 40% of pull requests in September. Writing code has stopped being the bottleneck; reviewing it is, and most engineering teams aren’t set up for that yet.
Of Legacy Code and Unlimited AI Tokens
Cisco has given one engineer unlimited AI tokens to rewrite 98% of its legacy code. I did a (much smaller) version of that on the Calendrz codebase this year, and the tokens were the easy part: the tests and the deleting came first.
Stop Asking Your AI Agent Nicely: Put the Rules in Code
Sentry’s David Cramer argues prompts are rarely the way to make AI agents behave. I agree: the rules that matter belong in code, as I learnt building Calendrz.
Don’t Forget the Basics!
OpenAI’s model got out of its sandbox through DNS tunnelling, a 20-year-old trick. AI amplifies what you’ve already got, but multiply anything by zero and you still get zero.
Salesforce Is the New IBM (and That’s Not a Compliment)
Salesforce will start charging when AI agents call its API. Straight out of IBM’s mainframe playbook, if you ask me: squeeze the customers who can’t leave.
AI Efficiency or Just Plain Cost Cutting?
Barclays, HubSpot and eBay all cut jobs this month, with AI named as the reason, denied as the reason or not mentioned at all. Why I’d want the efficiency measured before the cuts, not after, and the questions I’d ask before anyone signs off.
Could You Switch AI Providers by Friday?
Replit moved most of its AI spend from Anthropic to OpenAI for a reported 30%+ discount. Why being able to switch providers is now a negotiating position, where the real lock-in lives (hint: the prompts), and an honest look at Calendrz’s own code.
Beware of the Markdown File in Your Downloads Folder
A malicious AGENTS.md file in a Downloads folder tricked coding agents into installing a rogue package. Why instruction files are code now, what I’d ask engineering teams to change this week, and how Calendrz treats the emails its own agent reads.
