The spec should define the required treatment of @context - in particular, if a rule names a context using @context, that rule will only match chunks that do likewise, and won't match chunks without @context. Contexts allow you to describe facts that only hold in a given context rather than generally. Contexts are needed for episodic memory, beliefs, stories, reported speech, lessons, abductive reasoning, and so forth.
The spec should define the required treatment of @context - in particular, if a rule names a context using @context, that rule will only match chunks that do likewise, and won't match chunks without @context. Contexts allow you to describe facts that only hold in a given context rather than generally. Contexts are needed for episodic memory, beliefs, stories, reported speech, lessons, abductive reasoning, and so forth.
See: https://github.com/w3c/cogai/blob/master/chunks-and-rules.md#statements-about-statements