feat(skills): add read_skill for compact mode

src/agent/loop_.rs

@@ -3474,6 +3474,15 @@ pub async fn run(
             "Delete a memory entry. Use when: memory is incorrect/stale or explicitly requested for removal. Don't use when: impact is uncertain.",
         ),
     ];
+    if matches!(
+        config.skills.prompt_injection_mode,
+        crate::config::SkillsPromptInjectionMode::Compact
+    ) {
+        tool_descs.push((
+            "read_skill",
+            "Load the full source for an available skill by name. Use when: compact mode only shows a summary and you need the complete skill instructions.",
+        ));
+    }
     tool_descs.push((
         "cron_add",
         "Create a cron job. Supports schedule kinds: cron, at, every; and job types: shell or agent.",
@@ -4161,6 +4170,15 @@ pub async fn process_message(
         ("screenshot", "Capture a screenshot."),
         ("image_info", "Read image metadata."),
     ];
+    if matches!(
+        config.skills.prompt_injection_mode,
+        crate::config::SkillsPromptInjectionMode::Compact
+    ) {
+        tool_descs.push((
+            "read_skill",
+            "Load the full source for an available skill by name.",
+        ));
+    }
     if config.browser.enabled {
         tool_descs.push(("browser_open", "Open approved URLs in browser."));
     }

src/agent/prompt.rs

@@ -436,6 +436,7 @@ mod tests {
         assert!(output.contains("<available_skills>"));
         assert!(output.contains("<name>deploy</name>"));
         assert!(output.contains("<location>skills/deploy/SKILL.md</location>"));
+        assert!(output.contains("read_skill(name)"));
         assert!(!output.contains("<instruction>Run smoke tests before deploy.</instruction>"));
         assert!(!output.contains("<tools>"));
     }