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name: laneweaverTMS-feature-workflow description: Step-by-step guide for implementing new features in laneweaverTMS, orchestrating use of specialized skills and agents for database, backend, and frontend work.

laneweaverTMS Feature Workflow

An orchestration guide for implementing end-to-end features in laneweaverTMS. This skill coordinates other skills and agents rather than duplicating their content.

When to Use This Skill

Use when:

• Implementing a new feature that spans multiple layers (database, backend, frontend)
• Adding a new entity/resource to the system
• Planning feature implementation order
• Deciding which skills or agents to invoke

Pre-Implementation Checklist

Before writing any code, ensure:

Step-by-Step Implementation Workflow

Step 1: Database Schema (If Changes Needed)

When: New tables, columns, ENUMs, or constraints required.

How to Execute:

1. Invoke schema-migration-agent for database work
   • Isolates the 500KB erd.sql context
   • Generates migration files in supabase/migrations/
2. Use supabase:laneweaver-database-design skill for conventions

Output: Migration file(s) in supabase/migrations/

Key Conventions (see supabase:laneweaver-database-design for details):

• UUID primary keys (except users table)
• Required audit columns: created_at, updated_at, created_by, updated_by, deleted_at, deleted_by
• Soft deletes via deleted_at column
• Manual FK indexes (PostgreSQL does not auto-index)

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Step 2: Models (/internal/models/)

When: Always, for any new entity or DTO.

How to Execute:

1. Use golang-orchestrator:backend-service-patterns skill
2. Create Go structs with proper tags

Pattern:

Copytype MyEntity struct {
    ID        string     `db:"id" json:"id"`
    Name      string     `db:"name" json:"name"`
    Status    MyStatus   `db:"status" json:"status"`

    // Audit fields (always include)
    CreatedAt time.Time  `db:"created_at" json:"createdAt"`
    UpdatedAt time.Time  `db:"updated_at" json:"updatedAt"`
    CreatedBy *int32     `db:"created_by" json:"createdBy,omitempty"`
    UpdatedBy *int32     `db:"updated_by" json:"updatedBy,omitempty"`
    DeletedAt *time.Time `db:"deleted_at" json:"deletedAt,omitempty"`
}

Output: Model file in /internal/models/

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Step 3: Repository (/internal/repository/)

When: Always, for any new entity.

How to Execute:

1. Use golang-orchestrator:backend-service-patterns skill
2. Implement SQL queries with soft delete handling

Key Requirements:

• All queries include WHERE deleted_at IS NULL
• Use transactions for multi-table operations
• Use QueryBuilder for complex filters
• Handle pgx.ErrNoRows for not-found cases

Output: Repository file in /internal/repository/

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Step 4: Service (/internal/services/)

When: Always, for any new entity or business operation.

How to Execute:

1. Use golang-orchestrator:backend-service-patterns skill
2. Implement business logic and validation

Key Requirements:

• Validate requests at method start
• Return ValidationErrors for business rule failures
• Orchestrate multiple repositories as needed
• Use context.Context throughout

Output: Service file in /internal/services/

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Step 5: Handler (/internal/handlers/)

When: Always, for any new API endpoint.

How to Execute:

1. Use golang-orchestrator:backend-service-patterns skill
2. Implement HTTP handlers with Echo

Key Requirements:

• Bind request with c.Bind()
• Return APIResponse wrapper for all responses
• Add Swagger/OpenAPI annotations
• Type-assert ValidationErrors for 400 responses

Output: Handler file in /internal/handlers/

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Step 6: Router (/internal/router/)

When: Always, for any new endpoint.

How to Execute:

1. Register endpoints in Setup function
2. Follow RESTful conventions

Pattern:

Copy// In router/router.go Setup function
myEntities := api.Group("/my-entities")
myEntities.GET("", myEntityHandler.List)
myEntities.POST("", myEntityHandler.Create)
myEntities.GET("/:id", myEntityHandler.GetByID)
myEntities.PUT("/:id", myEntityHandler.Update)
myEntities.DELETE("/:id", myEntityHandler.Delete)

Output: Updated /internal/router/router.go

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Step 7: Frontend (If UI Needed)

When: Feature requires user-facing components.

How to Execute:

1. Invoke frontend-component-agent for Svelte work
   • Isolates frontend context (different mental model from Go)
   • Knows Svelte 5, SvelteKit, shadcn-svelte patterns
2. Use svelte5-runes skill for reactivity patterns
3. Use shadcn-svelte-skill for UI components

Output: Svelte components in frontend project

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Skill Reference Matrix

Choose the right skill for each concern:

Agent Reference Matrix

Use agents for context isolation:

Implementation Order Rules

1. Database first: Schema changes must exist before Go code references them
2. Models before repository: Structs must exist before SQL mapping
3. Repository before service: Data access before business logic
4. Service before handler: Business logic before HTTP layer
5. Handler before router: Handler must exist before route registration
6. Backend before frontend: API must exist before UI calls it

Common Feature Patterns

Adding a New Entity (CRUD)

Copy1. schema-migration-agent → Create table + indexes
2. /internal/models/ → Entity struct + DTOs
3. /internal/repository/ → CRUD queries
4. /internal/services/ → Business logic + validation
5. /internal/handlers/ → HTTP handlers
6. /internal/router/ → Route registration
7. frontend-component-agent → List page + form (if UI needed)

Adding a Field to Existing Entity

Copy1. schema-migration-agent → ALTER TABLE + index (if needed)
2. /internal/models/ → Add field to struct
3. /internal/repository/ → Update queries
4. /internal/handlers/ → Update DTOs (if exposed via API)

Adding a Status Workflow

Copy1. schema-migration-agent → Create ENUM + add column
2. /internal/models/ → Define enum constants + validation
3. /internal/services/ → Implement state machine logic
4. Use load-lifecycle-patterns skill for reference

Anti-Patterns to Avoid

Quick Decision Guide

CopyNeed database changes? → schema-migration-agent + supabase:laneweaver-database-design
Need Go backend code? → golang-orchestrator:backend-service-patterns
Need frontend UI? → frontend-component-agent + svelte5-runes + shadcn-svelte-skill
Unclear on freight terms? → freight-domain-glossary
Implementing load states? → load-lifecycle-patterns

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Remember: This skill orchestrates other skills. When you need implementation details, invoke the appropriate specialized skill rather than trying to implement from memory.