Add verified Dev Brain skills

src/app/generation.rs

@@ -407,6 +407,21 @@ impl App {
         prompt
     }
 
+    fn dev_brain_skills_prompt(&self) -> Option<String> {
+        self.config.dev_brain.enabled.then(|| {
+            let projects = self
+                .projects
+                .iter()
+                .map(|project| project.project.clone())
+                .collect::<Vec<_>>();
+            crate::dev_brain::skills_prompt(&self.config.dev_brain, &projects).unwrap_or_else(|error| {
+                format!(
+                    "# Available Dev Brain skills\n\nThe verified skill index is unavailable: {error}. Repair the vault with dev_brain_info and dev_brain_validate before relying on a skill."
+                )
+            })
+        })
+    }
+
     fn session_agents_prompt(&self) -> Option<&str> {
         self.conversation
             .iter()
@@ -539,6 +554,7 @@ impl App {
         #[cfg(target_os = "macos")]
         if opening_turn {
             injected_system.extend(agents.clone());
+            injected_system.extend(self.dev_brain_skills_prompt());
             injected_system.push(crate::agent::datetime_context());
         }
         #[cfg(target_os = "macos")]
@@ -688,6 +704,9 @@ impl App {
             model,
             self.config.dev_brain.enabled,
         )];
+        if let Some(skills) = self.dev_brain_skills_prompt() {
+            reminders.push(skills);
+        }
         if self.config.a2ui_enabled {
             reminders.push(crate::a2ui::SYSTEM_PROMPT.to_owned());
         }

src/app/view/preferences.rs

@@ -180,6 +180,18 @@ impl App {
                 .align_y(Alignment::Center),
                 text("The folder must already contain .obsidian. DS4Server manages only its declared wiki pages and leaves settings, attachments, hidden files, and unrelated notes untouched.")
                     .size(12),
+                row![
+                    text("Restore the current built-in Dev Brain guidance after an upgrade.")
+                        .size(12)
+                        .width(Length::Fill),
+                    hint(
+                        action_button("Recreate purpose.md and schema.md")
+                            .on_press(Message::RestoreDevBrainDefaultGuides),
+                        "Overwrites only purpose.md and schema.md with this version's defaults. Topic pages, generated indexes, and log.md are preserved.",
+                    ),
+                ]
+                .spacing(12)
+                .align_y(Alignment::Center),
             ]
             .spacing(10),
         );