Covers resuming suspended runs with their agent session and queue-entry pin handed back verbatim, and the concurrent-agents setting end to end: the number stored on disk is the number of unattended agents the auto-PM sweep fans out, one pinned queue entry each, whether the sweep fires on schedule or from the dashboard's run-now click with auto-run off.

## Before writing SPEC.md files

Read https://raw.githubusercontent.com/brillout/sdd/refs/heads/main/sdd.md
