v0.5.66

v0.5.66 - 2026-11-08

• pi-subagents 0.87.0. A subagent model written as provider/id now always runs on that provider instead of silently falling back to another provider's copy of the model (and billing that account); the launch fails with an error naming the alternative instead. stop with drain: true ends a long workflow without killing researchers already running, keeping their results. Old subagent artifacts in nested session folders are now cleaned up after artifactConfig.cleanupDays, and a Pi install missing @earendil-works/pi-schema now fails a background launch immediately with an error naming the package.