Expose plugin app IDs in invocation guidance

codex-rs/core/src/plugins/render.rs

@@ -48,6 +48,18 @@ pub(crate) fn render_explicit_plugin_instructions(
         ));
     }
 
+    if !plugin.app_connector_ids.is_empty() {
+        lines.push(format!(
+            "- App IDs declared by this plugin, including templates: {}.",
+            plugin
+                .app_connector_ids
+                .iter()
+                .map(|connector_id| format!("`{}`", connector_id.0))
+                .collect::<Vec<_>>()
+                .join(", ")
+        ));
+    }
+
     if lines.len() == 1 {
         return None;
     }

codex-rs/core/src/plugins/render_tests.rs

@@ -1,4 +1,5 @@
 use super::*;
+use codex_plugin::AppConnectorId;
 use pretty_assertions::assert_eq;
 
 #[test]
@@ -21,3 +22,25 @@ fn render_plugins_section_includes_descriptions_and_skill_naming_guidance() {
 
     assert_eq!(rendered, expected);
 }
+
+#[test]
+fn render_explicit_plugin_instructions_include_declared_app_ids() {
+    let rendered = render_explicit_plugin_instructions(
+        &PluginCapabilitySummary {
+            display_name: "sample".to_string(),
+            app_connector_ids: vec![
+                AppConnectorId("connector_calendar".to_string()),
+                AppConnectorId("templated_apps_Databricks".to_string()),
+            ],
+            ..PluginCapabilitySummary::default()
+        },
+        &[],
+        &[],
+    )
+    .expect("plugin app IDs should render");
+
+    assert_eq!(
+        rendered,
+        "Capabilities from the `sample` plugin:\n- App IDs declared by this plugin, including templates: `connector_calendar`, `templated_apps_Databricks`.\nUse these plugin-associated capabilities to help solve the task."
+    );
+}