docs: Document Agent Knowledge Base feature

fern/docs.yml

@@ -85,6 +85,8 @@ navigation:
           path: ./docs/features/github-pr-comments.mdx
         - page: Using the Web Interface
           path: ./docs/features/web-ui-feedback.mdx
+        - page: Agent Knowledge Base
+          path: ./docs/features/agent-knowledge-base.mdx
         - page: Providing Feedback
           path: ./docs/features/providing-feedback.mdx
     - section: Integrations

fern/docs/features/agent-knowledge-base.mdx

@@ -0,0 +1,41 @@
+---
+title: Agent Knowledge Base
+description: View and edit the files that help Promptless understand your documentation style, product context, and workflow preferences
+---
+
+Promptless updates these files automatically as it learns from your feedback, but you can also edit them directly.
+
+## Accessing the Agent Knowledge Base
+
+Go to **Settings** and click the **Agent Knowledge Base** tab. If you have multiple docs repositories connected, select the one you want from the dropdown.
+
+## Knowledge Base Files
+
+| File | Purpose |
+|------|---------|
+| `client_instructions.md` | Guidelines for how Promptless approaches documentation tasks. Updated when Promptless learns new preferences from your feedback. |
+| `default_plan_skeleton.md` | Template structure for documentation plans. Updated when you provide feedback on plan organization. |
+| `product_overview.md` | High-level context about your product. Generated during initial setup—you can edit this directly or request Promptless to regenerate it. |
+| `client_style_guide.md` | Writing style rules and conventions. If your repo includes a style guide or Vale rules, reference those files here. Promptless updates this file as it learns your style preferences from feedback. |
+
+## Viewing and Editing Files
+
+Click any file in the tree view to open it in the editor.
+
+To edit a file:
+
+1. Make your changes in the editor
+2. Click **Save**
+3. Your changes are committed directly to the repository
+
+<Warning>
+Switching files with unsaved changes will discard those changes.
+</Warning>
+
+## How Promptless Uses These Files
+
+Promptless reads these files at the start of every documentation task to understand your documentation approach, product terminology, and writing style.
+
+When you provide feedback on suggestions—through PR comments, the web interface, or Slack—Promptless may update these files to apply what it learned to future tasks.
+
+Need help? Contact us at [help@gopromptless.ai](mailto:help@gopromptless.ai).