Assembly and injection

Assembly orders context. Injection makes it visible.

Assembly block

An assembly block SHOULD include block_id, item_refs, content_ref, wrapper, position, visibility, token_estimate, hash, and redaction_state.

Injection target

Targets include model prompts, message history, tool arguments, tool-visible resources, runtime metadata, UI panels, review exports, peer-agent messages, and artifact inputs.

Fixed rule

Never infer injection from selection alone. A selected item may be omitted later, compacted, redacted, deferred, or visible only to a non-model target.