Deep Work — Time-Block the Day, Budget the Shallow

Portability: Reasoning-led skill with 3 stdlib Python scripts. No external APIs, no LLM calls in scripts. Works in Claude Code CLI and Claude.ai web. The scripts fix the arithmetic; you keep the judgment.

What this does

A calendar full of reactions is not a plan. This skill turns a raw task list into a day where attention is the protected resource: deep tasks get the earliest hours in blocks of at least 90 minutes, shallow work is batched into at most two windows, buffers absorb attention residue, and the schedule flatly refuses more than 4 hours of deep demand — the trained daily ceiling. A local ledger of focus sessions keeps the weekly deep-hours target measured, not felt.

Step 1 — Classify and budget the shallow

Ask for today's task list with rough minutes per task (or take it from $ARGUMENTS). The auditor classifies each task deep vs shallow (keyword heuristics; an explicit :deep/:shallow suffix always wins), computes the shallow share against the budget, and prints the forcing question for every shallow item — how long would it take to train a smart recent graduate to do this?