Building Daddy Note: A Piano Practice App for My Daughter, Built in 4 Days by AI Agents
A piano practice app for my daughter: I wore every hat from spec to tracking, AI agents did the building, and one robot had no rhythm.
6 min readA piano practice app for my daughter: I wore every hat from spec to tracking, AI agents did the building, and one robot had no rhythm.
6 min readAI agents work best when treated like new hires: clear scope, limited access, and someone accountable. A worked example from an e-commerce platform.
3 min readRetrieval-Augmented Generation is still the right tool for large, fast-moving knowledge. Here is where it earns its place in an e-commerce architecture, where it quietly fails, and where it should be switched off entirely.
10 min readEvery trading agent dashboard shows win rate, Sharpe, drawdown. Almost none show abstention rate — the share of opportunities the agent looked at and declined. That omission is not an oversight. It is a design flaw.
2 min readEvery team that hits the wall on a long-running agent reaches for the same lever: a bigger context window. It is almost always the wrong lever. What is actually broken is the decision about what gets written down, what gets thrown away, and who decides.
10 min readA follow-up to architecting commerce for AI agents. Once an agent can reach your store, something has to decide what comes back — and the standard chunk-embed-search pipeline quietly breaks on every one of the four retrieval problems commerce actually has.
11 min readAn AI trading agent can search a million variations of a strategy in an afternoon. That is exactly the problem. When the search is cheap, the beautiful equity curve stops being evidence and starts being an accident you paid for.
9 min readMost organisations have given their AI agents real power and borrowed credentials. The identity question sounds like plumbing, but it decides whether an agent is auditable, revocable, and safe to expand.
9 min readA new wave of AI trading tools skips the stock pick entirely and instead recommends the options structure — spread, collar, or straddle — that fits the volatility regime you’re actually in.
2 min readBanks are swapping robocalls and hold queues for conversational AI agents that resolve fraud alerts in one call — and that’s opening a new front in caller verification.
2 min readOne user’s complaint that Aroi Care was ‘closed-ended’ turned into six turns of a spec conversation with an AI coding agent — and almost none of the real work was typing code. It was reading feedback closely, refusing to over-fit to one example, and catching the moment a taxonomy quietly became a safety decision.
7 min readA new breed of AI agents isn’t picking your next trade — it’s reading your last twenty and calling out the pattern you keep pretending not to see.
2 min readAI agents are moving from chatbots to actual browser co-pilots — here’s what that means the next time your flight gets cancelled.
2 min readA practical architecture for e-commerce built for autonomous AI shopping agents — headless commerce, discoverability, the protocol layer, agent authentication, and the measurement blind spot most retailers haven’t solved yet.
9 min readAI agents are now parsing earnings call tone and language in real time, giving traders a sentiment edge before the transcript is even finalized.
2 min readMost AI trading setups obsess over better predictions. The setups that survive obsess over what happens when the prediction is wrong.
2 min read