[devin-ai-integration]

Summary

OpenSysML is making Project/WhereFeature on a feature an element row lacks a path error that names the element and the features it does have (the QVTS outcome semantics: a feature present and empty is a value; a feature the element has none of is a path error). Sources that mix element kinds — the cookbook's MassTable over parts and connections — need a way to keep today's empty cell, so both operations take an opt-in:

calc def WhereFeature {
    in source : Element[0..*] ordered;
    in 'feature' : String[1];
    in operator : String[1];
    in value : String[1];
+   in tolerate : Boolean[1] default false;
    return result : Element[0..*] ordered;
}
calc def Project {
    in source : Element[0..*] ordered;
    in properties : String[0..*] ordered default null;
    in columns : ColumnSpec[0..*] ordered default null;
+   in tolerate : Boolean[1] default false;
    return result : Element[0..*] ordered;
}

Semver: the parameter is additive, but its default changes the meaning of an existing Project/WhereFeature over rows that lack the feature (empty cell → path error), which the README classifies as MAJOR. The alternative — default true now, flipping in a later MAJOR — is open in the review thread for the maintainers to decide. engine-contract.json is untouched (no new bound name); .meta.json regenerated with scripts/write-project-meta.py.

The matching OpenSysML change (executor, cookbook moved to tolerate = true, design note) is ready on its feature/query-feature-outcomes branch and will re-pin the vendored copy once this merges.

Link to Devin session: https://nasa-jpl-demo.devinenterprise.com/sessions/18ad47adf36f44e9b6824a4472f9678d
Open in Devin Desktop: https://nasa-jpl-demo.devinenterprise.com/desktop/session/18ad47adf36f44e9b6824a4472f9678d?variant=devin
Requested by: @NicolasRouquette

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[devin-ai-integration]

I'll fix CI failures and address comments from users with write access. I'll skip comments containing "(aside)".

• Disable automatic comment, CI, and merge conflict monitoring