MCP Inspector — Prompts

[R-Lawton]

Add the Prompts tab to the MCP Inspector. Depends on #671 for the page shell, connection bar, and MCP session management.

Prompts tab:

• Alert (info, inline) — "Generating prompts creates text templates only and does not execute commands"
• Left panel — "Select a prompt":
  • Select (typeahead) with refresh Button
  • Prompt name with sparkle Icon + MCP server name
  • Description text
  • Copy Button (icon)
  • Dynamic FormGroup inputs from prompt arguments (TextInput, Select)
  • Button (primary): "Generate prompt"
  • Button (secondary): "Clear fields"
• Right panel — "Output":
  • CodeBlock showing generated prompt text
  • Token count display

MCP protocol

Action	MCP Method	Proxy endpoint
List prompts	prompts/list	POST /gateways/<ns>/<name>/mcp
Get prompt	prompts/get	POST /gateways/<ns>/<name>/mcp

Designs: https://www.figma.com/proto/oizjCN6EVed31dW71YXS3K/RHCL-MCP?node-id=332-19491

Definition of done

• Unit tests (Jest)
• E2e tests (Playwright)
• Documentation updated