# Documentation Standards

> 4.4. Reserved anchor registry

- Skill: `matrixfounder/documentation-standards-2` (Agent Skill)
- Install (CLI): `npx skillmds@latest add matrixfounder/documentation-standards-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/matrixfounder/documentation-standards-2/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: MatrixFounder (https://skillmd.com/u/matrixfounder)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/matrixfounder/documentation-standards-2

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### 4.4. Reserved anchor registry

| Anchor | Document | Names | Consumer |
| :--- | :--- | :--- | :--- |
| `loop:<id>` | `.agent/workflows/*.md` | A retry loop's site | `check_loop_contract.py` (R3, R10) |