Agent offloads out-of-scope work via SuggestImprovement; children run
automatically; new WaitingForChildren state; generalize planning's
parent/child machinery.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Externalize all prose prompts to editable files, collapse system+agent,
add an inline roadblock protocol detected by StreamAnalyzer.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>