Atlas task() with run_in_background=false crashed with 'The "path" property must be of type string, got object' from Node's path.isAbsolute validation upstream of the SDK.
All callers (sync-prompt-sender, boulder-continuation-injector, idle-event, session-route, model-suggestion-retry) already route through dispatchInternalPrompt, so centralizing the compatibility shim in prompt-async-gate.ts covers every Bug 1 site without touching individual hooks.
On TypeError matching the object-path signature, retry once with path collapsed to its id string. Types broaden PromptSessionPath to string | { id }.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
YeonGyu-Kim