Estatewise Contracts

EstateWise Contracts

Use this skill whenever a change could affect another package or service, even if the code edit is small.

Contract Sources Of Truth

• REST backend contract: backend/src/routes/, backend/src/controllers/, swagger annotations, backend/README.md
• Frontend REST consumption: frontend/lib/api.ts plus direct fetch(...) usage in frontend/pages/
• Frontend local tRPC contract: frontend/server/api/routers/, frontend/pages/api/trpc/[trpc].ts, frontend/lib/trpc.tsx
• MCP contract: mcp/src/tools/*.ts, mcp/src/server.ts, mcp/src/client.ts, mcp/README.md
• Agentic AI HTTP/A2A contract: agentic-ai/src/http/server.ts, agentic-ai/src/a2a/, agentic-ai/README.md
• gRPC contract: grpc/proto/market_pulse.proto, grpc/src/services/, grpc/README.md

Producer To Consumer Matrix

Backend REST -> Frontend + MCP

If a backend endpoint, query param, auth requirement, or payload changes, inspect:

• frontend/lib/api.ts
• direct frontend fetch callers like frontend/pages/chat.tsx, frontend/pages/charts.tsx, frontend/pages/login.tsx, frontend/pages/signup.tsx, frontend/pages/reset-password.tsx
• MCP tools in mcp/src/tools/
• Swagger and README docs

Frontend tRPC -> Frontend Pages

If a local tRPC router changes, inspect:

• frontend/server/api/routers/
• frontend/lib/trpc.tsx
• consuming pages/components

MCP Tool -> Agentic AI + Docs

If an MCP tool name, schema, or output changes, inspect:

• mcp/src/client.ts
• agentic-ai/src/lang/tools.ts
• orchestrator call sites and runtime assumptions
• mcp/README.md

Agentic A2A/HTTP -> MCP A2A Bridge

If agentic-ai server endpoints or task semantics change, inspect:

• agentic-ai/src/http/server.ts
• agentic-ai/src/a2a/
• mcp/src/tools/a2a.ts
• agentic-ai/README.md
• mcp/README.md

gRPC Proto -> Service + Consumers

If grpc/proto/market_pulse.proto changes, inspect:

• grpc/src/services/marketPulseService.ts
• grpc/src/server.ts
• examples/docs/tests

Search Patterns That Pay Off

Use searches like:

• rg -n "estatewise-backend\\.vercel\\.app|API_BASE_URL" frontend
• rg -n "/api/<route>|fetch\\(" frontend
• rg -n "name:\\s*\"<tool>\"|callTool\\(|client:call" mcp agentic-ai
• rg -n "/run|/run/stream|a2a|agent-card|tasks\\." agentic-ai mcp
• rg -n "market_pulse|MarketPulseService" grpc

Validation Expectations

• REST contract change:

  • cd backend && npm run build && npm run test
  • cd frontend && npm run build && npm run test when frontend callers changed
  • cd mcp && npm run build && npm run client:call -- <tool> '<json>' when MCP wrappers changed

• tRPC contract change:

  • cd frontend && npm run build && npm run test

• MCP contract change:

  • cd mcp && npm run build
  • cd mcp && npm run client:call -- <tool> '<json>'
  • cd agentic-ai && npm run build if consumed there

• A2A/HTTP contract change:

  • cd agentic-ai && npm run build
  • run a realistic HTTP or CLI flow if possible
  • validate MCP a2a.* bridge if relevant

• gRPC contract change:

  • cd grpc && npm run build && npm run test && npm run proto:check

Required Closeout

Call out:

1. What contract moved.
2. Which producers and consumers were updated.
3. Which validations proved alignment.
4. Which downstream consumers were not validated and why.