diff --git a/codex-rs/app-server/src/request_processors/catalog_processor.rs b/codex-rs/app-server/src/request_processors/catalog_processor.rs
index 3b0f8cbe23..ef9e5a6797 100644
--- a/codex-rs/app-server/src/request_processors/catalog_processor.rs
+++ b/codex-rs/app-server/src/request_processors/catalog_processor.rs
@@ -518,6 +518,9 @@ impl CatalogRequestProcessor {
         let skills_manager = self.thread_manager.skills_manager();
         let plugins_manager = self.thread_manager.plugins_manager();
         let environment_manager = self.thread_manager.environment_manager();
+        let selected_environment_id = environment_id
+            .clone()
+            .unwrap_or_else(|| codex_exec_server::LOCAL_ENVIRONMENT_ID.to_string());
         let selected_environment = match environment_id {
             Some(environment_id) => {
                 let environment = environment_manager
@@ -539,6 +542,7 @@ impl CatalogRequestProcessor {
                 let config = &config;
                 let local_file_system = local_file_system.clone();
                 let selected_environment = selected_environment.clone();
+                let selected_environment_id = selected_environment_id.clone();
                 let plugins_manager = &plugins_manager;
                 let skills_manager = &skills_manager;
                 async move {
@@ -584,10 +588,13 @@ impl CatalogRequestProcessor {
                         );
                     };
                     let skills_input = codex_core::skills::SkillsLoadInput::new(
-                        codex_exec_server::EnvironmentPathRef::new(
-                            environment.get_filesystem(),
-                            cwd_abs.clone(),
-                        ),
+                        vec![codex_core::skills::loader::SkillEnvironment {
+                            environment_id: selected_environment_id.clone(),
+                            path: codex_exec_server::EnvironmentPathRef::new(
+                                environment.get_filesystem(),
+                                cwd_abs.clone(),
+                            ),
+                        }],
                         local_file_system,
                         effective_skill_roots,
                         config_layer_stack,
diff --git a/codex-rs/app-server/src/skills_watcher.rs b/codex-rs/app-server/src/skills_watcher.rs
index 30837ef584..914cf361bd 100644
--- a/codex-rs/app-server/src/skills_watcher.rs
+++ b/codex-rs/app-server/src/skills_watcher.rs
@@ -111,7 +111,10 @@ impl SkillsWatcher {
         let plugins_manager = thread_manager.plugins_manager();
         let plugin_outcome = plugins_manager.plugins_for_config(&plugins_input).await;
         let skills_input = SkillsLoadInput::new(
-            root_path_ref,
+            vec![codex_core::skills::loader::SkillEnvironment {
+                environment_id: codex_exec_server::LOCAL_ENVIRONMENT_ID.to_string(),
+                path: root_path_ref,
+            }],
             local_file_system,
             plugin_outcome.effective_plugin_skill_roots(),
             config.config_layer_stack.clone(),
diff --git a/codex-rs/core-skills/src/loader_tests.rs b/codex-rs/core-skills/src/loader_tests.rs
index e585250dd4..ba70b01fa7 100644
--- a/codex-rs/core-skills/src/loader_tests.rs
+++ b/codex-rs/core-skills/src/loader_tests.rs
@@ -153,6 +153,7 @@ fn local_env_path(path: AbsolutePathBuf) -> EnvironmentPathRef {
 fn local_skill_root(path: AbsolutePathBuf, scope: SkillScope) -> SkillRoot {
     SkillRoot {
         path: local_env_path(path),
+        environment_id: "local".to_string(),
         scope,
         plugin_id: None,
         plugin_root: None,
@@ -1749,6 +1750,48 @@ async fn deduplicates_by_path_preferring_first_root() {
     );
 }
 
+#[tokio::test]
+async fn preserves_same_absolute_skill_path_from_distinct_environments() {
+    let root = tempfile::tempdir().expect("tempdir");
+    let skill_path = write_skill_at(root.path(), "dupe", "dupe-skill", "from repo");
+    let shared_path = root.path().abs();
+    let first_file_system: Arc<dyn ExecutorFileSystem> = Arc::new(LocalFileSystem::unsandboxed());
+    let second_file_system: Arc<dyn ExecutorFileSystem> = Arc::new(LocalFileSystem::unsandboxed());
+
+    let outcome = load_skills_from_roots([
+        SkillRoot {
+            path: EnvironmentPathRef::new(first_file_system, shared_path.clone()),
+            environment_id: "devbox".to_string(),
+            scope: SkillScope::Repo,
+            plugin_id: None,
+            plugin_root: None,
+        },
+        SkillRoot {
+            path: EnvironmentPathRef::new(second_file_system, shared_path),
+            environment_id: "local".to_string(),
+            scope: SkillScope::Repo,
+            plugin_id: None,
+            plugin_root: None,
+        },
+    ])
+    .await;
+
+    assert_eq!(
+        outcome
+            .skills
+            .iter()
+            .map(|skill| (
+                skill.environment_id.as_str(),
+                skill.path_to_skills_md.clone()
+            ))
+            .collect::<Vec<_>>(),
+        vec![
+            ("devbox", normalized(&skill_path)),
+            ("local", normalized(&skill_path)),
+        ]
+    );
+}
+
 #[tokio::test]
 async fn keeps_duplicate_names_from_repo_and_user() {
     let codex_home = tempfile::tempdir().expect("tempdir");
diff --git a/codex-rs/core/src/agent/role_tests.rs b/codex-rs/core/src/agent/role_tests.rs
index 2c9ec62d6f..cc19abee4f 100644
--- a/codex-rs/core/src/agent/role_tests.rs
+++ b/codex-rs/core/src/agent/role_tests.rs
@@ -427,6 +427,7 @@ enabled = false
     );
     let skills_input = skills_load_input_from_config(
         &config,
+        codex_exec_server::LOCAL_ENVIRONMENT_ID.to_string(),
         cwd,
         Some(Arc::clone(&codex_exec_server::LOCAL_FS)),
         effective_skill_roots,
diff --git a/codex-rs/core/src/session/session.rs b/codex-rs/core/src/session/session.rs
index 0296f10a28..95862b5bf4 100644
--- a/codex-rs/core/src/session/session.rs
+++ b/codex-rs/core/src/session/session.rs
@@ -452,16 +452,19 @@ async fn warm_plugins_and_skills_for_session_init(
         &environments,
     )
     .ok();
-    let path_ref = resolved_environments
+    let skill_environment = resolved_environments
         .as_ref()
         .and_then(crate::environment_selection::ResolvedTurnEnvironments::primary)
         .map(|environment| {
-            crate::skills::EnvironmentPathRef::new(
-                environment.environment.get_filesystem(),
-                environment.cwd.clone(),
+            (
+                environment.environment_id.clone(),
+                crate::skills::EnvironmentPathRef::new(
+                    environment.environment.get_filesystem(),
+                    environment.cwd.clone(),
+                ),
             )
         });
-    let Some(path_ref) = path_ref else {
+    let Some((environment_id, path_ref)) = skill_environment else {
         return Vec::new();
     };
     let local_file_system = environment_manager
@@ -472,6 +475,7 @@ async fn warm_plugins_and_skills_for_session_init(
     let effective_skill_roots = plugin_outcome.effective_plugin_skill_roots();
     let skills_input = skills_load_input_from_config(
         config.as_ref(),
+        environment_id,
         path_ref,
         local_file_system,
         effective_skill_roots,
diff --git a/codex-rs/core/src/session/tests.rs b/codex-rs/core/src/session/tests.rs
index 52f63fab04..86cce77229 100644
--- a/codex-rs/core/src/session/tests.rs
+++ b/codex-rs/core/src/session/tests.rs
@@ -4129,6 +4129,7 @@ async fn new_default_turn_uses_config_aware_skills_for_role_overrides() {
         .skills_for_cwd(
             &crate::skills_load_input_from_config(
                 &parent_config,
+                codex_exec_server::LOCAL_ENVIRONMENT_ID.to_string(),
                 crate::skills::EnvironmentPathRef::new(
                     Arc::clone(&skill_fs),
                     parent_config.cwd.clone(),
@@ -4709,6 +4710,7 @@ pub(crate) async fn make_session_and_context() -> (Session, TurnContext) {
     );
     let skills_input = crate::skills_load_input_from_config(
         &per_turn_config,
+        codex_exec_server::LOCAL_ENVIRONMENT_ID.to_string(),
         cwd,
         services
             .environment_manager
@@ -6562,6 +6564,7 @@ where
     );
     let skills_input = crate::skills_load_input_from_config(
         &per_turn_config,
+        codex_exec_server::LOCAL_ENVIRONMENT_ID.to_string(),
         cwd,
         services
             .environment_manager
diff --git a/codex-rs/core/src/skills.rs b/codex-rs/core/src/skills.rs
index 31d1278496..64fd33206a 100644
--- a/codex-rs/core/src/skills.rs
+++ b/codex-rs/core/src/skills.rs
@@ -38,13 +38,14 @@ pub use codex_core_skills::system;
 
 pub(crate) fn skills_load_input_from_config(
     config: &Config,
+    environment_id: String,
     env_path: EnvironmentPathRef,
     local_file_system: Option<Arc<dyn ExecutorFileSystem>>,
     effective_skill_roots: Vec<PluginSkillRoot>,
 ) -> SkillsLoadInput {
     SkillsLoadInput::new(
         vec![codex_core_skills::loader::SkillEnvironment {
-            environment_id: codex_exec_server::LOCAL_ENVIRONMENT_ID.to_string(),
+            environment_id,
             path: env_path,
         }],
         local_file_system,