AI coding tools assume single-threaded users

Thu, 12 Mar 2026 09:00:00 -0600

In January, Claude Code was generating so many artifacts that my main project’s docs/ directory was filling up with plans and handoffs from multiple orgs, multiple projects, and multiple dates. I sketched a Hive partition scheme — org/project/dt=YYYY-MM-DD/ — to tame the mess. I never built it.

The plan singleton problem came later and turned out to be worse. Claude Code’s plan mode stores one plan per session. Switch workstreams and the old plan haunts you. Start a new plan and the old one gets destroyed. No amount of directory structure fixes that — the singleton lives inside the session, not on disk. Both problems grow from the same root: AI coding tools assume you’re doing one thing at a time.

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AI coding tools assume single-threaded users