📖What it is

Checks a plan is ready and complete before work begins.

Before a queued job is started, this confirms its plan is whole and nothing it depends on is broken or missing. If the plan isn't ready, it stops the launch. The parts that kick off and order jobs rely on it.

🔌Who calls it (2)

Worked out from who actually calls it, not from a note somebody wrote.

🧮Other pipeline machinery machinery