# Johnny Decimal Router

> Route Markdown notes into existing Johnny.Decimal numeric folders without inventing new ranges silently.

- Skill: `ponzgpt/johnny-decimal-router` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ponzgpt/johnny-decimal-router`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ponzgpt/johnny-decimal-router/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Docs & Writing
- Author: ponzgpt (https://skillmd.com/u/ponzgpt)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ponzgpt/johnny-decimal-router

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# Johnny.Decimal Router

## When To Use

Use this skill when the vault already has or wants stable numeric addresses.

## Procedure

1. Inspect existing numbered folders before routing.
2. Treat ranges `10-99` as user-owned address space.
3. Prefer existing categories over new categories.
4. If no category fits, propose a new category and wait.
5. Never invent top-level numeric folders without confirmation.
6. Present source path, destination path, reason, and confidence.

## Proposal Format

```markdown
| Source | Proposed JD path | Reason | Confidence |
|---|---|---|---|
| 00_Inbox/example.md | 20-29 Projects/21 Example.md | Active project outcome | Medium |
```

## Pitfalls

- Do not route by filename alone.
- Do not treat tags as stronger evidence than note content.
- Do not make bulk moves without a review table.

## Verification

The human can audit each proposed route before any filesystem change happens.