MCP 2026-07-28 Bridge

Comprehensive reference for Model Context Protocol (MCP) 2026-07-28 revision integration.

Protocol Compliance & Transport

`tacet-mcp` implements the MCP 2026-07-28 specification revision over JSON-RPC 2.0. Tacet acts as an MCP Client connecting to external tool servers over stdio or SSE transports.

  • Tool Registration: Discovered MCP tools are registered into Tacet's intent router automatically.
  • Resource Sampling: Supports reading external MCP resources (resources/list, resources/read).
  • Prompt Templates: Exposes external MCP prompt templates to the shell context.
  • Diagnostic Visibility: tacet why displays active MCP tools alongside internal tools with scoring rationale.

Adding External MCP Servers

Add an external MCP server to your configuration via CLI or `mcp.json`:

# Register GitHub MCP Server
tacet mcp add github -- command npx -y @modelcontextprotocol/server-github

# Register PostgreSQL MCP Server
tacet mcp add postgres -- command npx -y @modelcontextprotocol/server-postgres postgresql://localhost/db