Optional ReadonlyallowedReadonlyarmsThe arms to compare (settings / plugin / pluginDir per arm).
ReadonlychecksOptional ReadonlyfixtureOptional ReadonlymodelOptional ReadonlyspacingOptional ReadonlystubStub each arm's skill BODIES (frontmatter kept) before the run — the A/B
counterpart to MeasureSpec.stubSkillBodies. For firing comparisons
(does description variant A fire more than B?), every arm that sets
pluginDir is repackaged with bodies stripped so each run stops at
selection — a fraction of the tokens. Arms without a pluginDir are left
untouched. Don't combine with judged/quality checks. See stubSkillBody.
ReadonlytaskOptional ReadonlytimeoutOptional Readonlytrials
A task scored against checks across NAMED arms (the harness variable on/off).