diff --git a/crates/goose/src/agents/platform_extensions/summon.rs b/crates/goose/src/agents/platform_extensions/summon.rs
index 9ec4f73b6d0b..de01e5960c77 100644
--- a/crates/goose/src/agents/platform_extensions/summon.rs
+++ b/crates/goose/src/agents/platform_extensions/summon.rs
@@ -45,6 +45,7 @@ pub struct Source {
     pub description: String,
     pub path: PathBuf,
     pub content: String,
+    pub supporting_files: Vec<PathBuf>,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
@@ -174,6 +175,7 @@ fn parse_skill_content(content: &str, path: PathBuf) -> Option<Source> {
         description: metadata.description,
         path,
         content: body,
+        supporting_files: Vec::new(),
     })
 }
 
@@ -195,9 +197,36 @@ fn parse_agent_content(content: &str, path: PathBuf) -> Option<Source> {
         description,
         path,
         content: body,
+        supporting_files: Vec::new(),
     })
 }
 
+/// Collect all files in a skill directory (excluding SKILL.md itself),
+/// recursing one level into subdirectories.
+fn find_supporting_files(directory: &Path, skill_file: &Path) -> Vec<PathBuf> {
+    let mut files = Vec::new();
+    let entries = match std::fs::read_dir(directory) {
+        Ok(e) => e,
+        Err(_) => return files,
+    };
+    for entry in entries.flatten() {
+        let path = entry.path();
+        if path.is_file() && path != skill_file {
+            files.push(path);
+        } else if path.is_dir() {
+            if let Ok(sub_entries) = std::fs::read_dir(&path) {
+                for sub_entry in sub_entries.flatten() {
+                    let sub_path = sub_entry.path();
+                    if sub_path.is_file() {
+                        files.push(sub_path);
+                    }
+                }
+            }
+        }
+    }
+    files
+}
+
 fn round_duration(d: Duration) -> String {
     let secs = d.as_secs();
     if secs < 60 {
@@ -614,6 +643,7 @@ impl SummonClient {
                 description,
                 path: PathBuf::from(&sr.path),
                 content: String::new(),
+                supporting_files: Vec::new(),
             });
         }
     }
@@ -684,6 +714,7 @@ impl SummonClient {
                         description: recipe.description.clone(),
                         path: path.clone(),
                         content: recipe.instructions.clone().unwrap_or_default(),
+                        supporting_files: Vec::new(),
                     });
                 }
                 Err(e) => {
@@ -723,8 +754,9 @@ impl SummonClient {
                 }
             };
 
-            if let Some(source) = parse_skill_content(&content, skill_file) {
+            if let Some(mut source) = parse_skill_content(&content, skill_dir.clone()) {
                 if !seen.contains(&source.name) {
+                    source.supporting_files = find_supporting_files(&skill_dir, &skill_file);
                     seen.insert(source.name.clone());
                     sources.push(source);
                 }
@@ -1016,11 +1048,28 @@ impl SummonClient {
             Some(source) => {
                 let content = source.to_load_text();
 
-                let output = format!(
-                    "# Loaded: {} ({})\n\n{}\n\n---\nThis knowledge is now available in your context.",
+                let mut output = format!(
+                    "# Loaded: {} ({})\n\n{}\n",
                     source.name, source.kind, content
                 );
 
+                if !source.supporting_files.is_empty() {
+                    output.push_str(&format!(
+                        "\n## Supporting Files\n\nSkill directory: {}\n\nThe following supporting files are available:\n",
+                        source.path.display()
+                    ));
+                    for file in &source.supporting_files {
+                        if let Ok(relative) = file.strip_prefix(&source.path) {
+                            output.push_str(&format!("- {}\n", relative.display()));
+                        }
+                    }
+                    output.push_str(
+                        "\nUse the file tools to read these files or run scripts as directed.\n",
+                    );
+                }
+
+                output.push_str("\n---\nThis knowledge is now available in your context.");
+
                 Ok(vec![Content::text(output)])
             }
             None => {
@@ -1837,6 +1886,37 @@ You review code."#;
         assert!(sources.iter().any(|s| s.kind == SourceKind::BuiltinSkill));
     }
 
+    #[tokio::test]
+    async fn test_skill_supporting_files_discovered() {
+        let temp_dir = TempDir::new().unwrap();
+
+        let skill_dir = temp_dir.path().join(".goose/skills/my-skill");
+        fs::create_dir_all(&skill_dir).unwrap();
+        fs::write(
+            skill_dir.join("SKILL.md"),
+            "---\nname: my-skill\ndescription: A skill with scripts\n---\nRun check_all.sh",
+        )
+        .unwrap();
+        fs::write(skill_dir.join("myscript.sh"), "#!/bin/bash\necho ok").unwrap();
+        fs::create_dir(skill_dir.join("templates")).unwrap();
+        fs::write(skill_dir.join("templates/report.txt"), "template content").unwrap();
+
+        let client = SummonClient::new(create_test_context()).unwrap();
+        let sources = client.discover_filesystem_sources(temp_dir.path());
+
+        let skill = sources.iter().find(|s| s.name == "my-skill").unwrap();
+        assert_eq!(skill.path, skill_dir);
+        assert_eq!(skill.supporting_files.len(), 2);
+
+        let file_names: Vec<String> = skill
+            .supporting_files
+            .iter()
+            .filter_map(|f| f.file_name().map(|n| n.to_string_lossy().to_string()))
+            .collect();
+        assert!(file_names.contains(&"myscript.sh".to_string()));
+        assert!(file_names.contains(&"report.txt".to_string()));
+    }
+
     #[tokio::test]
     async fn test_client_tools_and_unknown_tool() {
         let client = SummonClient::new(create_test_context()).unwrap();