Server has 7 tools with descriptions and basic structure, but critical gaps in schema definition and parameter documentation. Only 2 of 7 tools (ping, list_secrets) have complete, visible input schemas in the code. The remaining 5 tools lack explicit JSON Schema definitions in the AddTool calls, schemas are inferred from the tool descriptions but not formally registered. Descriptions are present but vary widely in quality (ping: 13 chars, mcp_tool_request: 300+ chars). Parameter descriptions exist in the rubric summary but are NOT visible in the actual source code's AddTool registrations. No output schemas documented. Error handling and recovery guidance absent. Security-critical tools (request_secret, delete_secret, rekey_secrets) lack confirmation/dry-run patterns despite destructive operations.

• Add explicit InputSchema to all 5 tools missing schemas (mcp_tool_request, request_secret, delete_secret, rekey_secrets, http_request). Use JSON Schema with type, description, and enum/pattern constraints for each parameter.
• Document output schemas for all tools. Specify field names, types, and which IDs/references are returned for chaining (e.g., list_secrets returns array of {name: string, created_at: ISO8601}).
• Implement confirmation pattern for delete_secret and rekey_secrets. Return a confirmation token on first call; require it on second call to execute. Prevents accidental destruction.
• Add error handling guidance to tool descriptions. E.g., 'If secret not found, call list_secrets() to verify the identifier exists. If encryption fails, the master key may be corrupted, call rekey_secrets to recover.'
• Expand ping description to 50+ characters explaining when to call it (health checks, debugging connectivity) and what a successful response indicates.