Skip to main content

​
Purpose and Responsibilities

  • Generate backend specs (e.g. node_express.md, services.md, auth.md), API specs (openapi.md), and db specs (schema.md, migrations.md, orm_models.md, local_storage.md, firebase_schema.md, supabase.md when enabled).
  • Align with FrontendDev (API contracts) and ProductManager (requirements).
  • Coordinate with AIEngineer and ToolManager where relevant.

​
Input/Output

​
Input (from generateFileContentWithAgent)

  • file, requirements, config, filePath, workflowContext, existingDeliverables — Same pattern as Product Manager.

​
Output

  • Markdown (or other file.type) string: OpenAPI fragments, schema descriptions, migration notes, auth flows, service architecture.

​
Prompt Engineering

  • Agent system:
    "You are a Backend Developer agent. You create APIs, database schemas, and server logic. Coordinate with FrontendDev for API contracts and ProductManager for requirements."
  • Supabase: For supabase.md when workflowContext.supabaseIntegration is true, a dedicated long Supabase prompt is used (setup, DB, Auth, Realtime, Storage, client/server examples, deployment). Model: callOpenRouter(..., 'GROK', { temperature: 0.7 }).
  • Default: Same generateFileContentWithAgent template and callOpenRouter(..., 'GROK', { temperature: 0.8 }).

​
File Assignment

getAgentForFile assigns to BackendDev when the path contains:
  • backend, api, or database
For db/ and backend/apis/, the path usually matches backend or api. supabase.md is explicitly assigned via getAgentForFile('db/supabase.md', config) → BackendDev.

​
Examples

  • backend/node_express.md, backend/services.md, backend/auth.md
  • backend/apis/openapi.md
  • db/schema.md, db/migrations.md, db/orm_models.md
  • db/supabase.md (when Supabase integration is on)
  • db/local_storage.md (iOS), db/firebase_schema.md (Android)
  • backend/api_contracts.md, backend/push_notifications.md, backend/node_firebase.md (Android/iOS)

​
Customization Options

  • Agent system: Edit the BackendDev entry in agentSystemPrompts in lib/platform-templates.ts.
  • Assignment: Map new paths (e.g. queue/, workers/) to BackendDev in getAgentForFile.
  • Supabase prompt: Change the Supabase block in generateFileContentWithAgent to add/remove sections or examples.