v0.13.0-beta.2

Beta for 0.13.0 on npm next (npm install -g engramgraph@next). latest stays 0.12.0 until this beta has been tested.

Replaces 0.13.0-beta.1 — please upgrade if you installed it.

Fixed in beta.2

• MCP: an unexpected error no longer loses its message. In beta.1 the MCP server's shared error handler called itself for any error other than "not in the graph" or "graph busy" and overflowed the stack; the caller read Right-hand side of 'instanceof' is not an object instead of the cause. It now answers isError with the original message.

Everything in beta.1 is still here: the five fixes from the 0.12.0 Windows 11 report, including exit codes that changed from 0 to 1 for a name the graph does not contain — read "Changed" in the CHANGELOG before upgrading a script.

Full details: CHANGELOG.md.