What metrics are you thinking about for the "Agent Friendly Code Score"? Things like:

• Function signature clarity (named params, not too many positional args)
• Error messages that include enough context for an agent to self-correct
• Consistent naming conventions across the API surface
• Docs that show complete working examples, not just snippets

Echo is already pretty good on most of these. The middleware chain is predictable, error messages include the route, and the handler signature is consistent. The main area where it could improve for agent consumption is the error response format - a consistent JSON error shape by default would make it easier for agents to parse and retry.