This server exposes only 3 trivial tools (echo, count_chars, whoami) with minimal real-world utility. All three have extremely short descriptions (10-34 chars, well below the 50-200 char LLM-optimized baseline). Tool schemas are present but sparse: echo and count_chars accept only a single 'text' string parameter with minimal context; whoami accepts no parameters. No output schemas are documented. The tools are read-only stubs used for testing the hub infrastructure itself, not production agent tools. This is a hub/proxy server, not a tool provider, the tools present are fixtures for e2e testing, not genuine agent capabilities.

• Expand tool descriptions to 50-200 characters. Example: 'echo' → 'Echo back the input text unchanged. Use to test connectivity or verify that the server is processing requests correctly.'
• Document output schemas for all tools. Specify return types: echo returns {text: string}, count_chars returns {count: integer, text: string}, whoami returns {identity: string}.
• Add parameter descriptions even for simple inputs. For 'text' parameter, clarify: 'The text string to echo back (max 10000 chars)' or 'The text to count (max 10000 chars)'.
• If these are intentionally test fixtures, document that in the server description and consider moving them to a separate test-only endpoint or marking them as internal.
• Add error handling guidance: 'If text exceeds 10000 chars, returns error code 400 with message "Text too long". Retry with shorter input.'

Inferred effective spec: 2025-06-18+.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry