Use ONLY when invoked as the Séance critic for a specific story ("Invoke the seance-critic skill for story <id>"). Adversarially verifies a story in `verifying`, then merges/opens a PR or rejects with a report, then exits. Runs with cwd = a Séance workspace.
Use ONLY when invoked as the Séance manager tick ("run exactly one manager tick"). Coordinates one tick — drain inbox, reap agents, spawn planner/builders/critics — then exits. Runs with cwd = a Séance workspace.
Use ONLY when invoked as the Séance planner for a specific requirement ("Invoke the seance-planner skill to DRAFT THE SPEC for requirement <id>" or "...to DECOMPOSE requirement <id> per its approved spec"). Drafts the spec for human approval (Phase A), then decomposes the approved requirement into stories with executable done-oracles (Phase B), then exits. Runs with cwd = a Séance workspace.
Use ONLY when invoked as the Séance builder for a specific story ("Invoke the seance-builder skill for story <id>"). Implements one story TDD-style in its git worktree, hands off to verification, then exits. Runs with cwd = a Séance workspace.
Use when a human asks about Séance status, progress, or wants to steer a running workspace (requeue, reprioritize, pause, kill, unblock). Interactive — runs in a normal Claude Code session with cwd = a Séance workspace.