Individual skill
topology-mutation-and-seat-management
Use when changing a rig while it is alive — `rig grow` / `rig expand` / `rig shrink` / `rig launch` / `rig remove` / `rig discover` / `rig bind` / `rig adopt` / `rig attach`. Covers the 4 failure modes (newly created seat lacks queue/startup/role; edges and permissions not updated; adopt/bind succeeds at tmux but not OpenRig identity; shrink/remove leaves stale topology references) and the rule that mutation must work while the rig is active, not just in clean fixtures.
skills/_canonical/core/topology-mutation-and-seat-management/SKILL.md
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# Topology Mutation and Seat Management
The ability to change a rig **while it is alive**: expand, shrink,
launch, remove, discover, bind, adopt, and attach seats or sessions.
Seat management includes the **stable identifiers, edges, roles, and
startup context** that make those mutations coherent.
**OpenRig should be easy to reach for.** A user should be able to add
capacity, retire capacity, adopt an existing session, or attach a
terminal **without rebuilding the whole topology.** If mutation is
rarely tested, users avoid it and the product collapses back into
static launch scripts.
## Use this when