linear.listIssueAttachments returns external resources, not files embedded in Markdown.
automations/list-linear-attachments.automation.ts
issueId accepts a UUID or identifier. limit accepts 1–50 and defaults to 50. Other common page fields are after and includeArchived. Optional second argument { account } defaults to the project binding.
Returns { attachments: LinearAttachment[]; pageInfo: LinearPageInfo }. Each attachment includes unique URL, title/subtitle, source metadata, grouping flag, creator, issue reference, and dates.