Conversation
Files and context added to the active exchange.
Workspace
Library, instructions, and context shared with its authorized members.
Project
Documents, data, and memory attached to the private or shared side of the project.
Organization or personal
Knowledge offered by active configuration and permissions, without automatic inclusion.
External
A source from a connected service or the Web when an authorized feature uses it.

Practical guidance

Conversation attachments, project resources and workspace library items are distinct sources of context. Check where a file was added and which project or workspace is associated with the exchange. Membership, selected scope and resource availability constrain what can be used; a familiar filename does not establish access to all its copies.

Advanced tips

When testing whether a source can inform a response, ask a narrow question and verify the returned provenance. Do not infer global memory or cross-organization search from one successful answer. Keep separate projects and confidential audiences separated in both associations and attachments.