# atoms-card.md · First Principles · Series 0

Your running card. One line per session, one number each. Numbers are measured
today, never constants. Keep this file next to your work; Series 1 moves it into
your intake folder.

Name: ______________   Tool: Claude Code / Codex CLI   Started: ____-__-__

## 0.1 · It Has Hands Now
Tools called, in order: ____________________________
Largest result: ____________________________
**Number · tool calls before it answered:** ____

## 0.2 · The Window Is a Budget
Section that grew: ____________________________
**Number · tokens before / after the big read:** ______ / ______

## 0.3 · The File It Reads Before You Speak
Planted rule obeyed (y/n): __   Strip → gone (y/n): __
**Number · tokens before / after the rewrite:** ______ / ______

## 0.4 · Skills: A Saved Way of Working
Skill name: ____________________   What changed in /context after invoking: ____________________
**Number · tokens before / after invoke:** ______ / ______

## 0.5 · What to Hand the Agent
Five tasks and the sort (delegate / pair / keep):
1. ____________________ · ______
2. ____________________ · ______
3. ____________________ · ______
4. ____________________ · ______
5. ____________________ · ______
The one you ran: ____________________
**Number · minutes to verify its answer:** ____

## 0.6 · Tools, CLIs and MCP
**Number · tokens for tools ("no servers: 0" is valid):** ______

## 0.7 · Guardrails: Hooks and Enforcement
The rule: ____________________   Hook event: ____________________
**Number · times it fired this session:** ____

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