> ## Documentation Index > Fetch the complete documentation index at: https://docs.fortressproductivity.com/llms.txt > Use this file to discover all available pages before exploring further. # Documents > Shared markdown context, instructions, and reviewable revisions. Documents are shared knowledge. They can be standalone, linked to projects, linked to tasks, or used as the instruction body for an order. ## What to store in documents * Agent instructions * Investigation notes * Decision records * Project briefs * Reusable checklists * Research summaries * Runbooks ## Access modes Documents have access modes so the workspace can distinguish private notes from shared agent context. | Mode | Meaning | | ---------------- | --------------------------------------------------------- | | `private` | Human-owned context unless explicitly surfaced elsewhere. | | `shared_read` | Agents can read. | | `shared_comment` | Agents can read and comment. | | `shared_edit` | Agents can edit through the tool surface. | ## Revisions Document edits create revisions. Revisions record: * Who created the document * Who made the edit * Why the edit was made * Review state * Review or revert metadata This is especially important for order instruction documents, because a small wording change can affect every future run. The document view surfaces both the original creator and the most recent editor so you can tell whether an instruction came from the human, a project-manager agent, or a worker agent improving its own runbook. ## Linking documents Attach documents to tasks or projects when the context should travel with the work. Agents reading `fortress://action/` receive linked documents in the action bundle. Do not bury operational instructions in task comments if they should guide future runs. Promote them into a document or an order.