Identity and office
Andriy Yermak has headed the Office of the President of Ukraine since 11 February 2020. The president is commander-in-chief. The OP head gates. Rustem Umerov is unresolved.
This page reuses ukraine-war. It does not mint a second war. Living OP head on the defending side still gets scrutiny.
Independent wires have recorded his role on negotiation tracks after 24 February 2022, including Istanbul, and controversies over who is hired and fired in defence and agencies under martial law. Store those as opacity and concentration, not as a unique treason cartoon and not as a unique anti-corruption halo. Allegation is not a completed judgment.
Documented benefits
Wartime diplomatic access that kept partners in the room is a neighbouring file. It does not rebate staffing opacity.
Contributions and limits
He gates. The president decides. The Rada writes statutes. Sharing a defensive war is not a reason to drop the row.
Causal chain
OP concentration under martial law attaches to ukraine-war as wartime governance. It is not a Soviet executive-power-concentration primary home.
What the score does not say
No exact number. Direction may be negative where opacity dominates. A later genuine open docket or a completed resignation gazette would be a different date. Shmyhal and Umerov remain names, not minted biographies.