Leah Millis/The Chronicle

The San Francisco Ethics Commission — the panel that keeps politicians in line and ensures that government meetings are open to the public — is itself facing an ethics complaint.

It’s now up to state Attorney General Xavier Becerra and District Attorney George Gascón to decide whether the Ethics Commission violated the state’s Brown Act, as alleged in a complaint filed Tuesday. The complaint cited Ethics Commissioners Peter Keane, Quentin Kopp, Paul Renne and Daina Chiu for acting on an item that wasn’t on their agenda last week when they voted to send a letter to city planner Christine Johnson, asking her to recuse herself from a controversial affordable housing battle at the Planning Commission.