Design Config

Design Documentation Configuration

Manages the design.config.json file that configures the design documentation system, including modules, paths, quality standards, and integrations.

Overview

This skill manages configuration by:

1. Validating against JSON schema
2. Initializing new configuration files
3. Adding/updating module definitions
4. Configuring quality standards
5. Managing skill enablement
6. Setting up integrations

Quick Start

Validate current config:

/design-config validate

Add new module:

/design-config add-module my-package

Update quality standards:

/design-config update-quality --maxLineLength=120

Configuration File

The design.config.json file is located at .claude/design/design.config.json and follows the JSON schema at:

.claude/skills/design-config/json-schemas/current.json

Top-Level Structure

{
  "$schema": "path/to/schema.json",
  "version": "1.0.0",
  "project": { ... },
  "paths": { ... },
  "modules": { ... },
  "skills": { ... },
  "quality": { ... },
  "integration": { ... }
}

Core Sections

Project Metadata

"project": {
  "name": "spencerbeggs/website",
  "type": "monorepo",
  "repository": "https://github.com/spencerbeggs/website",
  "maintainer": "C. Spencer Beggs"
}

Fields:

• name - Project name
• type - Project type (monorepo, package, application)
• repository - Git repository URL
• maintainer - Primary maintainer

Paths

"paths": {
  "designDocs": ".claude/design",
  "skills": ".claude/skills",
  "context": "CLAUDE.md",
  "localContext": "CLAUDE.local.md"
}

Fields:

• designDocs - Root directory for design documentation
• skills - Root directory for skills
• context - Root context file (CLAUDE.md)
• localContext - Local context file (CLAUDE.local.md)

Modules

"modules": {
  "my-package": {
    "path": "pkgs/my-package",
    "designDocsPath": ".claude/design/my-package",
    "categories": ["architecture", "performance"],
    "maintainer": "Spencer Beggs",
    "userDocs": {
      "readme": "pkgs/my-package/README.md",
      "repoDocs": null,
      "siteDocs": "website/docs/en/packages/my-package"
    }
  }
}

Module Fields:

• path - Relative path to module directory
• designDocsPath - Path to module's design docs (null if none)
• categories - Allowed design doc categories
• maintainer - Module maintainer name
• userDocs - User documentation paths (Level 1/2/3)

Valid Categories:

• architecture - System/component architecture
• performance - Performance characteristics
• observability - Logging, metrics, events
• testing - Testing strategy
• integration - Integration patterns
• cross-linking - Cross-linking features
• import-generation - Import generation
• source-mapping - Source mapping
• meta - Meta documentation
• documentation - Documentation about documentation
• other - Other categories

Quality Standards

"quality": {
  "designDocs": {
    "maxLineLength": 120,
    "requireFrontmatter": true,
    "requireTOC": true,
    "minSections": ["Overview", "Current State", "Rationale"]
  },
  "userDocs": {
    "level1": {
      "targetWordCount": [200, 500],
      "maxLineLength": 80,
      "requireSections": ["Features", "Installation", "Usage"]
    }
  },
  "context": {
    "rootMaxLines": 500,
    "childMaxLines": 300,
    "requireDesignDocPointers": true
  }
}

Quality Sections:

• designDocs - Design documentation standards
• userDocs - User documentation standards (Level 1/2/3)
• context - CLAUDE.md context file standards

Skills Configuration

"skills": {
  "baseNamespace": "/",
  "enabled": [
    "design-init",
    "design-validate",
    "design-update"
  ]
}

Fields:

• baseNamespace - Base namespace for skills (usually "/")
• enabled - List of enabled skill names

Integration Settings

"integration": {
  "ci": {
    "enabled": false,
    "validateOnPR": false,
    "syncOnMerge": false
  },
  "git": {
    "trackDesignDocs": true,
    "requireReviewForChanges": false
  }
}

Integration Options:

• ci - CI/CD integration settings
• git - Git integration settings

Workflow

Validate Configuration

Validates design.config.json against the JSON schema.

Steps:

1. Read .claude/design/design.config.json
2. Read schema from json-schemas/current.json
3. Validate JSON structure
4. Check all required fields present
5. Validate field types and values
6. Check enum values are valid
7. Report validation errors or success

Validation tools:

# Using Node.js with ajv
npm install -g ajv-cli
ajv validate -s json-schemas/current.json -d .claude/design/design.config.json

# Using Python with jsonschema
pip install jsonschema
python -c "import json, jsonschema; ..."

Initialize Configuration

Creates a new design.config.json file with sensible defaults.

Steps:

1. Check if config already exists (warn if it does)
2. Detect project type (monorepo, package, app)
3. Scan for existing modules
4. Generate module definitions
5. Set default quality standards
6. Write config file
7. Validate against schema
8. Report success

Example:

{
  "version": "1.0.0",
  "project": {
    "name": "my-project",
    "type": "monorepo",
    "maintainer": "Your Name"
  },
  "paths": {
    "designDocs": ".claude/design",
    "skills": ".claude/skills",
    "context": "CLAUDE.md"
  },
  "modules": {},
  "quality": {
    "designDocs": {
      "maxLineLength": 120,
      "requireFrontmatter": true,
      "requireTOC": true,
      "minSections": ["Overview", "Current State", "Rationale"]
    }
  }
}

Add Module

Adds a new module definition to the configuration.

Steps:

1. Read current config
2. Validate module doesn't already exist
3. Detect module path (from pnpm workspace, package.json, etc.)
4. Prompt for module details:
   • Design docs path
   • Categories
   • Maintainer
   • User docs paths
5. Add module to config
6. Validate updated config
7. Write config file
8. Report success

Example:

/design-config add-module effect-type-registry \
  --path=pkgs/effect-type-registry \
  --categories=architecture,performance,observability

Update Quality Standards

Updates quality standards for design docs, user docs, or context files.

Steps:

1. Read current config
2. Parse update parameters
3. Update specified quality fields
4. Validate updated config
5. Write config file
6. Report changes

Example:

/design-config update-quality \
  --designDocs.maxLineLength=120 \
  --context.rootMaxLines=500

Update Module

Updates an existing module definition.

Steps:

1. Read current config
2. Validate module exists
3. Parse update parameters
4. Update module fields
5. Validate updated config
6. Write config file
7. Report changes

Example:

/design-config update-module effect-type-registry \
  --add-category=testing \
  --siteDocs=website/docs/en/packages/effect-type-registry

Enable/Disable Skills

Manages the list of enabled skills.

Steps:

1. Read current config
2. Validate skill names exist
3. Add/remove from enabled list
4. Validate updated config
5. Write config file
6. Report changes

Example:

/design-config enable-skill design-prune design-export
/design-config disable-skill design-archive

Schema Reference

The complete JSON schema is located at:

.claude/skills/design-config/json-schemas/current.json

Schema URL:

https://spencerbegg.gs/schemas/design-config/1.0.0/schema.json

To reference in config:

{
  "$schema": ".claude/skills/design-config/json-schemas/current.json",
  "version": "1.0.0",
  ...
}

Validation

Required Fields

Top-level:

• version - Schema version (semver)
• project - Project metadata
• paths - Standard paths
• modules - Module definitions
• quality - Quality standards

Project:

• name - Project name
• type - Project type
• maintainer - Maintainer name

Paths:

• designDocs - Design docs root
• skills - Skills root
• context - Context file path

Module:

• path - Module directory path
• maintainer - Module maintainer

Quality.designDocs:

• maxLineLength - Max line length (80-200)
• requireFrontmatter - Frontmatter required (boolean)
• requireTOC - TOC required (boolean)
• minSections - Minimum sections (array)

Field Validation

Version: Must match semver pattern ^[0-9]+\.[0-9]+\.[0-9]+$

Project type: Must be one of: monorepo, package, application

Categories: Must be one of the valid category enums

Line lengths:

• designDocs.maxLineLength: 80-200
• userDocs.level1.maxLineLength: 80-120
• userDocs.level2.maxLineLength: 80-150

Context lines:

• context.rootMaxLines: 100-1000 (default 500)
• context.childMaxLines: 100-500 (default 300)

Common Use Cases

Initialize New Project

/design-config init \
  --name=my-project \
  --type=monorepo \
  --maintainer="Your Name"

Add Package to Monorepo

/design-config add-module my-package \
  --path=packages/my-package \
  --categories=architecture,performance

Update Quality Standards Example

/design-config update-quality \
  --designDocs.maxLineLength=100 \
  --context.rootMaxLines=600

Enable New Skills

/design-config enable-skill design-prune design-export

Validate After Manual Edit

/design-config validate

Error Handling

Invalid Schema

ERROR: Configuration validation failed

Schema: .claude/skills/design-config/json-schemas/current.json
Config: .claude/design/design.config.json

Errors:
- .version: Must match pattern ^[0-9]+\.[0-9]+\.[0-9]+$
- .modules.my-package.categories[0]: Must be one of:
  architecture, performance, ...
- .quality.designDocs.maxLineLength: Must be <= 200

Fix these errors and run validate again.

Missing Required Fields

ERROR: Missing required fields

- project.name is required
- project.type is required
- quality.designDocs is required

Add these fields and validate again.

Module Already Exists

ERROR: Module already exists

Module: effect-type-registry

To update existing module, use:
/design-config update-module effect-type-registry

Integration

Works with all design documentation skills:

• /design-init - Uses config for module paths and categories
• /design-validate - Uses config for quality standards
• /design-sync - Uses config for module definitions
• /design-audit - Uses config for quality checks
• All skills - Read config for paths and settings

Success Criteria

A valid configuration:

• ✅ Passes JSON schema validation
• ✅ All required fields present
• ✅ Field values match constraints
• ✅ Module paths exist
• ✅ Categories are valid enums
• ✅ Quality standards are reasonable
• ✅ No duplicate module names