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https://issues.apache.org/jira/browse/CAY-2943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrus Adamchik closed CAY-2943.
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Resolution: Fixed
> CayenneModeler MCP: open_project tool
> -------------------------------------
>
> Key: CAY-2943
> URL: https://issues.apache.org/jira/browse/CAY-2943
> Project: Cayenne
> Issue Type: Task
> Reporter: Andrus Adamchik
> Assignee: Andrus Adamchik
> Priority: Major
> Fix For: 5.0-M2
>
>
> Add an {{open_project}} tool to the CayenneModeler MCP server that locates a
> local CayenneModeler installation and launches it with a project preloaded.
> The tool handles four distributions — Mac {{{}.app{}}}, Windows {{{}.exe{}}},
> cross-platform {{{}.jar{}}}, and a source-tree fallback under
> {{assembly/target/}} for developers. Mac bundles are located structurally and
> tolerate renaming; the {{.exe}} and {{.jar}} probes are strict literal-name
> only, to avoid silently launching some unrelated program left next to the MCP
> jar.
> Liveness is confirmed via a Java Preferences handshake. The MCP server passes
> a nonce on the launch command line and waits for the Modeler to write a small
> record (pid, timestamp, resolved project path) under a nonce-scoped
> preferences node — written only after the project has successfully loaded
> into the UI. A missing handshake within the timeout reliably means something
> went wrong, and the user can check the Modeler window for the actual reason.
> Work spans two modules: discovery, launch, and the handshake watcher in
> {{cayenne-mcp-server}} and {{{}modeler/cayenne-modeler{}}}.
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