Routelarch - https://routelarch.skillsafe.ai/

This app's agent prompt is a derivative work of one agent skill. It paraphrases and adapts its guidance;
it does not reproduce the skill or its reference files verbatim.

1. nodejs-backend-patterns
   Source:  https://github.com/wshobson/agents
   Path:    plugins/javascript-typescript/skills/nodejs-backend-patterns/SKILL.md (and references/details.md)
   Author:  Seth Hobson (wshobson)
   Licence: MIT License - https://opensource.org/licenses/MIT
   Modifications: the skill's practice for Express and Fastify services (one global error handler with
   custom error classes, validated input, no hardcoded secrets, structured logging, rate limiting, CORS that
   is not * in production, parameterised queries over pooled connections, JWT authentication middleware,
   health checks and graceful shutdown) was restated as deterministic browser checks (expresskit.js) and as
   the audit and fix lanes of this app's prompt. The Express 4/5 grading of async errors and removed APIs,
   the middleware-order checks, the exact before/after edit contract, the re-check of every edit and
   returned file, the route-survival check and the changes list tied to the page's flags are additions of
   this app.

The browser-side checks (expresskit.js), the reconciliation (recon.js) and the rest of the page are
original to this app. Express is a project of the OpenJS Foundation and Fastify an OpenJS Foundation
project; this app is not affiliated with or endorsed by either.