- Status: candidate correspondence
- Paper wording: Candidate checkpoint behavior; full GoF participant delegation unverified.
- Case: OpenMontage (
calesthio/OpenMontage) - Fixed upstream commit:
db91727598d08d40919d7d68a47864a5467bd448 - Agent execution guide:
AGENT_GUIDE.md - Checkpoint implementation:
lib/checkpoint.py - Checkpoint behavioral source:
skills/meta/checkpoint-protocol.md - Checkpoint schema:
schemas/checkpoints/checkpoint.schema.json - Vendored assessment: frozen evidence
At this revision, OpenMontage persists schema-validated stage checkpoints with
completed, failed, awaiting_human, and in_progress status. Its helper
derives the next pipeline stage from completed checkpoints, while the checkpoint
protocol tells execution to resume partial work, wait for approval, or advance
depending on persisted status. This is source evidence for persisted and
resumed task-state-controlled behavior.
The correspondence remains candidate. The reviewed files centralize checkpoint logic and status branches; they do not materialize separate GoF State and ConcreteState participants or show a Context delegating the same operation to those objects. Static source inspection also does not prove end-to-end Agent Runtime behavior. Checkpoint vocabulary alone is not sufficient to confirm State.
- Status: constructive
- Context:
sample/SKILL.md - State contract:
sample/references/vendor-state-contract.md - ConcreteStates:
sample/child-skills/ - Persistence fixture:
sample/fixtures/valid/vendor-onboarding.json - Recovery fixture:
sample/fixtures/valid/recover-approved.json - Executable oracle:
sample/scripts/run_demo.py - Focused verification:
sample/tests/test_demo.py
The Context reloads one versioned record, delegates to a distinct ConcreteState, and atomically persists the successor only after legal handling. Tests prove restart recovery, deterministic rejection before write, deletion and corruption rejection, and stable fixture output. This local construction is independent of the OpenMontage case and does not establish Agent Runtime interpretation.