fix(skills): show all skills in slash menu (#1083)

Aligns the slash-menu cache with `discover_in_workspace`, so global `~/.deepseek/skills` and `~/.claude/skills` skills appear alongside project-local `.agents/skills` in the slash menu, `/skills` listing, and `/skill <name>` lookups. Also strips surrounding YAML quotes from `SKILL.md` frontmatter values, so a skill declared as `name: "hud"` registers as `hud` and matches prefix lookup.

Closes #1068. Thanks to @AlphaGogoo / @Duducoco for the fix and the test.

crates/tui/src/skills/mod.rs

@@ -248,7 +248,17 @@ impl SkillRegistry {
                     continue;
                 }
                 if let Some((key, value)) = line.split_once(':') {
-                    metadata.insert(key.trim().to_ascii_lowercase(), value.trim().to_string());
+                    let value = value.trim();
+                    let unquoted = if (value.starts_with('"')
+                        && value.ends_with('"')
+                        && value.len() >= 2)
+                        || (value.starts_with('\'') && value.ends_with('\'') && value.len() >= 2)
+                    {
+                        &value[1..value.len() - 1]
+                    } else {
+                        value
+                    };
+                    metadata.insert(key.trim().to_ascii_lowercase(), unquoted.to_string());
                 }
             }
 

crates/tui/src/tui/app.rs

@@ -1246,7 +1246,7 @@ impl App {
         } else {
             global_skills_dir
         };
-        let cached_skills = Self::discover_cached_skills(&skills_dir);
+        let cached_skills = Self::discover_cached_skills(&workspace);
 
         let input_history = crate::composer_history::load_history();
         let (initial_input_text, initial_input_cursor) = match initial_input {
@@ -1440,8 +1440,8 @@ impl App {
         }
     }
 
-    fn discover_cached_skills(skills_dir: &std::path::Path) -> Vec<(String, String)> {
-        crate::skills::SkillRegistry::discover(skills_dir)
+    fn discover_cached_skills(workspace: &std::path::Path) -> Vec<(String, String)> {
+        crate::skills::discover_in_workspace(workspace)
             .list()
             .iter()
             .map(|s| (s.name.clone(), s.description.clone()))
@@ -1449,7 +1449,7 @@ impl App {
     }
 
     pub fn refresh_skill_cache(&mut self) {
-        self.cached_skills = Self::discover_cached_skills(&self.skills_dir);
+        self.cached_skills = Self::discover_cached_skills(&self.workspace);
     }
 
     pub fn submit_api_key(&mut self) -> Result<SavedCredential, ApiKeyError> {
@@ -3918,6 +3918,40 @@ mod tests {
         }));
     }
 
+    #[test]
+    fn cached_skills_merges_across_candidate_directories() {
+        let tmp = tempfile::TempDir::new().expect("tempdir");
+        let workspace = tmp.path().join("workspace");
+
+        // Higher-precedence directory contains a stale empty dir for `foo`
+        // (no SKILL.md). This used to shadow the real definition further
+        // down the candidate list when the cache only scanned a single dir.
+        std::fs::create_dir_all(workspace.join(".agents").join("skills").join("foo"))
+            .expect("stale empty dir");
+
+        // Lower-precedence directory has the real skill.
+        let real_dir = workspace.join(".claude").join("skills").join("foo");
+        std::fs::create_dir_all(&real_dir).expect("real skill dir");
+        std::fs::write(
+            real_dir.join("SKILL.md"),
+            "---\nname: foo\ndescription: Real foo skill\n---\nbody\n",
+        )
+        .expect("skill file");
+
+        let mut options = test_options(false);
+        options.workspace = workspace.clone();
+        options.skills_dir = tmp.path().join("global-skills");
+        let app = App::new(options, &Config::default());
+
+        assert!(
+            app.cached_skills
+                .iter()
+                .any(|(name, description)| name == "foo" && description == "Real foo skill"),
+            "cached_skills should fall through to lower-precedence dir when higher-precedence one has an empty stub: {:?}",
+            app.cached_skills,
+        );
+    }
+
     #[test]
     fn submit_input_consolidates_oversized_input_into_paste_file() {
         let tmp = tempfile::TempDir::new().expect("tempdir");