Source notes · Two system routes
From durable jobs to delivered media
An AI video is not one model call. It is a production that waits, fails, revises, spends money, and eventually gets inspected. Temporal explains how a job survives processes; OpenMontage explains how an agent advances creative work through stages, artifacts, and human approval.
Key distinction: durable execution answers whether the work still exists. Creative orchestration answers what to do next after execution resumes. The ideas are adjacent, but their checkpoints are not interchangeable.

Reading route
Separate two kinds of recovery, then enter the source
Part 0 establishes shared questions. Parts 1 and 2 then examine durable execution and coding-agent video orchestration.
Part 0 · IntroductionHow the two kinds of recovery differSeparate job identity and event history from agent stages, artifacts, human approval, and final acceptance.
Read the route notes →
01 · TemporalHow a long-running job survives a processFollow Workflow IDs, Event History, replay, Activities, and idempotency to see what can continue after failure.
Read Part I →
02 · OpenMontageHow a coding agent advances a script into a finished videoFollow manifests, stage directors, checkpoints, render locks, and final review, separating Agent instructions, code-enforced checks, and project-file recovery from automatic execution resumption.
Read Part II →