# Principle Separate Before Serializing Shared State

> Eliminate unnecessary sharing or partition ownership before adding locks, queues, or coordination. Use when concurrency, locks, queues, shared state, or complex coordination are being considered.

- Skill: `theonlyfusioncube/principle-separate-before-serializing-shared-state` (Agent Skill)
- Install (CLI): `npx skillmds@latest add theonlyfusioncube/principle-separate-before-serializing-shared-state`
- Raw SKILL.md: https://api.skillmd.com/api/skills/theonlyfusioncube/principle-separate-before-serializing-shared-state/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: TheOnlyFusionCube (https://skillmd.com/u/theonlyfusioncube)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/theonlyfusioncube/principle-separate-before-serializing-shared-state

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# Separate Before Serializing Shared State

## Trigger

When concurrency, locks, queues, shared state, or complex coordination are being considered.

## Rule

Eliminate unnecessary sharing or partition ownership before adding locks, queues, or coordination.

## Application

1. Name the concrete decision this principle changes.
2. Apply the rule to that decision, not as a decorative citation.
3. Prefer evidence from the current repository/runtime over generic preference.
4. If the principle conflicts with an explicit user constraint, keep the constraint and state the tradeoff.