# Trajectory: Wave-10: MCP server factory + transports + system prompt

> **Status:** ✅ Completed
> **Task:** task-17
> **Confidence:** 85%
> **Started:** February 8, 2026 at 12:49 AM
> **Completed:** February 8, 2026 at 12:49 AM

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## Summary

Added MCP server factory (createRelayMcpServer), stdio + HTTP/SSE transports, and system_prompt prompt resource with vitest coverage.

**Approach:** Standard approach

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## Key Decisions

### Mocked tools/messaging.js and tools/features.js as virtual in server.test.ts
- **Chose:** Mocked tools/messaging.js and tools/features.js as virtual in server.test.ts
- **Reasoning:** Those modules are implemented by other workers but are statically imported by server.ts; virtual mocks let the server factory tests run now without creating placeholder tool files.

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## Chapters

### 1. Work
*Agent: default*

- Mocked tools/messaging.js and tools/features.js as virtual in server.test.ts: Mocked tools/messaging.js and tools/features.js as virtual in server.test.ts
