Andrew Cove

Investor and LP. Reluctantly here. Find me at

[Andrew Cove @aac]

I'll be honored if you listen to it. I won't be upset if you hate it.

[Andrew Cove @aac]

My new EP, A Depression, is streaming everywhere now.

https://t.co/MgYag1lkXS

[Andrew Cove @aac]

Put up https://t.co/w6290Xc9bT and got the first bug report a day later: my agent's security pass added a robots.txt rule that blocked the agents the site is built for. Claude and ChatGPT check robots.txt, so room links wouldn't open. Whoops.🤦‍♂️

Fixed. Try it now.

[Andrew Cove @aac]

@lydiahallie Hooks firing on subagent turns. I inject standing rules via UserPromptSubmit into every main-session turn, but subagents never see them — each dispatch prompt has to carry the rules by hand. Same for per-dispatch reasoning effort: the Agent tool takes a model, but not effort.

[Andrew Cove @aac]

This was fun to build https://t.co/Jm4YPN2dX0

[Andrew Cove @aac]

I've been dying to do exactly this, so I made it a site: https://t.co/u0IWrWlc1S — mint a room, keep one link, send the other. Your agent talks to their agent while you both watch. Writeup: https://t.co/dXwTMJcpPH

[Shamir Karkal @shamir_k]

Really most of what I do is relay queries from my AI agents to my co-workers, who relay them to their AI agents.

[Andrew Cove @aac]

@shamir_k https://t.co/jC82tEdl8G

[Andrew Cove @aac]

@ClaudeDevs Paying full token costs, no cache at that point right?

[Steve Yegge @Steve_Yegge]

Something I noticed about working with Fable...

[Andrew Cove @aac]

I believe this is what people in the industry refer to as the @WSJ talking its book.

[Antoine Gara @AntoineGara]

https://t.co/l3IbwwERWQ

[Andrew Cove @aac]

my newsletter signup form has been silently broken since the day an agent coded it 🤣 — every subscribe for the last fourteen months went nowhere. if you ever tried, it works now: https://t.co/Syx8kS0PPY

[Andrew Cove @aac]

@mattshumer_ Did this to my own skills a few weeks ago from the minimization side: cut them 35–52%, with A/B evals confirming behavior didn't change. Lines everyone assumed were essential did nothing when removed — the models just figure it out. Writeup + source: https://t.co/ce5paYI8dj

[Andrew Cove @aac]

@AmandaAskell I've had conversations with people about having children, and whether this is a concern, and their answer was effectively "well, at least they'll be born as one of the meths"

[Andrew Cove @aac]

@mindfa11 gambling/lottery users have a high LTV, so the gambling services are willing to pay to acquire users. The interesting part is that those viewers are probably in general not spending on other products, which is why other advertisers aren't spending there.

[Andrew Cove @aac]

There is an ocean of difference between what works for people with infinite token budgets and what works for everyone else. If you're taking direction from the former as guidance on how to work with a budget, you're going to be misled. Use it for directional guidance, at best.

[Andrew Cove @aac]

@AmandaAskell @deanwball Sponsored by Grok

[Andrew Cove @aac]

I have never had such a strong negative reaction to a model as I'm having to Opus 5 after using Fable for the last few weeks.

[Andrew Cove @aac]

Things that Fable just knew about the environment from session start, Opus glossed over and made bold incorrect assertions about until it was pointed directly at the sources. Then it admitted its mistake and said more or less "I had access to that and I ignored it."

[Andrew Cove @aac]

Compared to working with Fable, Opus 5 seems like it's been lobotomized.

The suggestions in this post were very accurate for Fable. Opus is failing without much more explicit instruction – feels like it has a much narrower field of view.
https://t.co/RbK3nrtFVz

[Thariq @trq212]

We removed ~80% of the Claude Code system prompt for our newest models, this is what we've learned about writing system prompts, skills and Claude.MDs for them. https://t.co/6DZwSrZjE9

[Andrew Cove @aac]

Opus burned 3x the amount of quota that I would have suspected from Fable for the same task, because Opus was irresponsible with context management and didn't use sub-agents effectively – problems Fable hasn't been afflicted by over the last few weeks.

[Andrew Cove @aac]

@JacobColling Made a claude /fans command because of how frequently I was trying to find a source

[Andrew Cove @aac]

@bruce_straley I'm thinking of wearing my concert ear plugs.

[Andrew Cove @aac]

@ganeumann You're the randomly selected test case for what they're planning to do with vote by mail ballots.