D-71's threat model — another user on the same host must not drive my
IDE — was enforced with 0600 on the unix socket and then bypassed
wholesale by the unauthenticated localhost SSE port, which since D-86
serves every clide verb as a tool. The server now mints 32 bytes of
CSPRNG token per start, publishes it via the /ide discovery lock
file's authToken slot (the field Claude Code's client reads), chmods
the lock to 0600, and rejects any request that doesn't present the
token in x-claude-code-ide-authorization with 401.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
jpmschweitzerandClaude Fable 5
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