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.
Posts Tagged: calendrz
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.
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.
Of Leaders, Workers and Too Many AI Agents
A new Asana report finds leaders use far more AI agents than their teams, while workers lose time juggling them. My take on why the two sides see agents so differently, and why leaders should measure finished work rather than agent activity.
Faster Code, Same Release Date: What Gives?
Engineering leaders say AI agents write code much faster, yet their release cycles are no faster than before. Typing was never the bottleneck: here’s where the time really goes, and what I’d change about review and verification.
Of Banks and AI Agents: Lock the Window, Build a Door
JPMorgan and Schwab are blocking outside AI agents from client accounts. They’re right to, but the interesting part is what Schwab offers instead, and why every CTO should give agents a proper front door (as I did for Calendrz).
Trust Is a Feature: Verification Lessons From Building the Calendrz Mobile Backend
LinkedIn is testing colleague vouching and the EU is pushing AI watermarks: platforms are being asked to prove things. Here’s how the same idea shaped the Calendrz mobile backend, from PKCE and Universal Links to refresh-token reuse detection.
61% of people are doing two jobs. Their calendars still think they have one.
Korn Ferry’s Workforce 2026 report says 61% of workers now do the job of more than one role. Here’s why I think the trend sticks, and the calendar problem it creates that almost nobody is talking about.
LinkedIn Is Retiring Its Search Filters. AI Callers Never Read Them Anyway
LinkedIn is replacing classic filter-based job search with AI search. On the API side of Calendrz, AI clients kept guessing parameter names. Here’s how strict validation plus helpful error messages fixed it.
