- select_final trivial condition now k==1 and single-candidate pool,
regardless of whether a selector is provided (previously gated on
selector is None, so wired runs always paid for a useless selector
task at k=1)
- Budget gains max_sessions gate (probe + stage-attempt sessions;
fmt2 corrections and selector/reflector sessions exempt), the
backstop for unpriced models where the USD gate never binds
- validate_run_tag (charset, no leading '-', no s<N> seed prefix)
enforced at run_improvement_via_tasks and the CLI
- CLI --check preflight (base harness, source dir, prompt, tag,
control-plane /health probe) without creating tasks
- ModeResult.to_dict now includes rollout summaries so a lost probe
is visible in full_result instead of only on the server
- CLI plan counts the selector only when k>1
host
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