isattu / matrix

agents · models · prompts.

7 entries
essays · hot-takes · bugs

a working notebook for everything ai. essays-in-progress, hot-takes that aren't ready to be essays, bugs i'm tracking, model notes.

subagents are an org chart you can rewrite at runtime.

managing six agents in parallel is managing six junior engineers — except you can change their reporting line mid-task.

14 may '26 · open ->

the orchestrator problem: when one model speaks for the others.

claude killed a codex audit mid-thought. the essay is about who gets to decide when a worker has contributed enough.

12 may '26 · open ->

today's pricing announcement is a compute tax dressed as a launch.

you're not paying for capability anymore, you're paying for context length.

10 may '26 · open ->

sonnet 4.6 outperforms opus 4.7 on my issue-triage skill.

6/7 vs 4/7 on the eval. for narrow, well-defined tasks the smaller model wins. saving this.

1 may '26 · open ->

context engineering is the entire job now.

the prompt isn't the prompt. the issue file is. the codebase is. you're staging a scene.

30 apr '26 · open ->

andy on agents-as-junior-collaborators.

an agent is a junior collaborator who can read very fast and remember nothing.

22 apr '26 · open ->

same tool name across two MCP servers silently picks the last-loaded one.

repro in 3 lines. workaround: alias one via the config. foot-gun for anyone running > 1 server.

22 apr '26 · open ->