local-cal/.opencode/context/core/context-system/guides/navigation-design-basics.md

Guide: Designing Navigation Files

Purpose: How to create token-efficient, scannable navigation files

---

Prerequisites

• Understand MVI principle (context-system/standards/mvi.md)
• Know your category's organizational pattern
• Have content files already created

Estimated time: 15-20 min per navigation file

---

Core Principles

1. Token Efficiency

Goal: 200-300 tokens per navigation file

How:

• Use ASCII trees (not verbose descriptions)
• Use tables (not paragraphs)
• Be concise (not comprehensive)

2. Scannable Structure

Goal: AI can find what it needs in <5 seconds

Format:

1. Structure (ASCII tree) - See what exists
2. Quick Routes (table) - Jump to common tasks
3. By Concern/Type (sections) - Browse by category

3. Self-Contained

Include: ✅ Paths | ✅ Brief descriptions (3-5 words) | ✅ When to use Exclude: ❌ File contents | ❌ Detailed explanations | ❌ Duplicates

---

Steps

1. Determine Navigation Type

Type	Path	Purpose
Category-level	{category}/navigation.md	Overview of category
Subcategory-level	{category}/{sub}/navigation.md	Files in subcategory
Specialized	{category}/{domain}-navigation.md	Cross-cutting (e.g., ui-navigation.md)

2. Create Structure Section

## Structure

openagents-repo/ ├── navigation.md ├── quick-start.md ├── concepts/ │ └── subagent-testing-modes.md ├── guides/ │ ├── adding-agent.md │ └── testing-agent.md └── lookup/ └── commands.md

Token count: ~50-100 tokens

3. Create Quick Routes Table

## Quick Routes

| Task | Path |
|------|------|
| **Add agent** | `guides/adding-agent.md` |
| **Test agent** | `guides/testing-agent.md` |
| **Find files** | `lookup/file-locations.md` |

Guidelines: Use bold for tasks | Relative paths | 5-10 common tasks

4. Create By Concern/Type Sections

## By Type

**Concepts** → Core ideas and principles
**Guides** → Step-by-step workflows
**Lookup** → Quick reference tables
**Errors** → Troubleshooting

5. Add Related Context (Optional)

## Related Context

- **Core Standards** → `../core/standards/navigation.md`

6. Validate Token Count

Target: 200-300 tokens

wc -w navigation.md  # Multiply by 1.3 for token estimate

---

Verification Checklist

• Token count 200-300?
• ASCII tree included?
• Quick routes table?
• By concern/type section?
• Relative paths?
• Descriptions 3-5 words?
• No duplicate information?

---

Related

• navigation-templates.md - Ready-to-use templates
• ../standards/mvi.md - MVI principle
• ../examples/navigation-examples.md - More examples