Phase-Local Node Architecture in StateM
In a StateM runbook, each phase-level state node is organized into four distinct structural components:
in_hook: Executes setup operations upon entering the state, initializing state files and loading durable context or progress records.State body: The primary open-ended execution space in which the agent retains discretion to reason, invoke tools, and edit files to solve phase-local tasks.out_hook: Persists durable task progress, updates status receipts, and prepares workspace artifacts before state departure.before_transfer: Evaluates blocking pre-commit checks; failing any check prevents transition commit and keeps the agent within the node for error repair.
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Prep Sessions
Long-Horizon Agent Reliability: Stateful Scaffolding and Runtime Verification @ University of Michigan - Ann Arbor
Ch.2 Runtime Architecture and Boundary Control - Long-Horizon Agent Reliability: Stateful Scaffolding and Runtime Verification @ University of Michigan - Ann Arbor
StateM Runtime and Runbook Architecture - Long-Horizon Agent Reliability: Stateful Scaffolding and Runtime Verification @ University of Michigan - Ann Arbor
Related
StateM Runbook
Formal Runbook Specification in StateM
Phase-Local Node Architecture in StateM
StateM Agent Runtime
Separation of Generic Runtime and Control Profile in StateM
Which set of lifecycle hooks and verification checks is detailed in a StateM runbook YAML specification?
In StateM, human supervisors must use a separate, proprietary GUI tool to audit runbooks because the control artifact cannot be inspected or edited directly by humans.
Through what operational interface does an executing StateM agent inspect its current state, execute transitions, and record dynamic checks in the shared workspace?
Formal Runbook Specification in StateM
Phase-Local Node Architecture in StateM
Learn After
In StateM's phase-local node architecture, what occurs when an evaluation fails during the
before_transfercomponent?In a StateM runbook, setup operations such as initializing state files and loading durable context are performed by the
out_hook.Which structural component of a StateM phase-level node serves as the primary open-ended execution space where the agent reasons, invokes tools, and edits files?