The suite is green and the app is broken

A green test is evidence about the test, not about the app. This skill separates the two by running the real app and comparing what it does against what the test claims.

It uses Reticle, which observes the running app from the inside: DOM, network, console, routing, and framework state. Not installed? RETICLE_INSTALL_SOURCE=npx_skill npx @reticlehq/server@latest init, then see the install-and-verify skill.

The five shapes, in the order they are worth checking

1. The assertion cannot fail. Read the test the user trusts. If it only asserts absence (no console error, no thrown exception, no rejected promise) it passes on a control wired to nothing. A dead button throws nothing, fires nothing, and changes nothing. Prove it in the app instead:

reticle_act_and_wait({ sessionId, ref, action: "click", until: { kind: "allOf", predicates: [
  { kind: "net",    method: "POST", urlContains: "/api/...", status: 200 },
  { kind: "signal", name: "..." },
]}})

A verdict of no here, against a green suite, is the false green.