MCP (Model Context Protocol) — Advisor & Reference Specification: https://modelcontextprotocol.io/specification/2025-11-25 (November 2025) When to Use MCP (Decision Tree) | Scenario | Use MCP? | Why | |----------|----------|-----| | Query PostgreSQL/MySQL/SQLite | Yes | Official servers exist, read-only by default | | Access filesystem outside workspace | Yes | Scoped allowlists, audit trail | | GitHub/Linear/Slack/Notion integration | Yes | Vendor MCP servers available | | One-off HTTP API call | No | Use WebFetch or Bash curl | | Internal API with auth | Maybe | Build custom MCP server if r…