For AI agents: the complete documentation index is available at https://jig.md/llms.txt, the full documentation bundle is available at https://jig.md/llms-full.txt, and this page is available as Markdown at https://jig.md/contracts/run-checkpoint.md.
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#Run Checkpoint contract

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Run Checkpoint lets a Flow preserve completed results while other work continues. If the Run is interrupted, its accepted progress can still reach the operator after cleanup, without being presented as a successful Run.

https://jig.md/contracts/run-checkpoint identifies this interface. It is not a storage endpoint or authority to access other Runs. Jig matches the package-local descriptor offline; the operator reviews the capability and chooses the output destination.

Retention lasts while the independent command owner lives. It is not machine-crash recovery or automatic resumption.