feat: Avoid reloading curated marketplaces for tool-suggest discovera… (#17638)

- stop `list_tool_suggest_discoverable_plugins()` from reloading the
curated marketplace for each discoverable plugin
- reuse a direct plugin-detail loader against the already-resolved
marketplace entry


The trigger was to stop those logs spamming:
```
d=019d81cf-6f69-7230-98aa-74294ff2dc5a}:submission_dispatch{otel.name="op.dispatch.user_input" submission.id="019d86c8-0a8e-7013-b442-109aabbf75c9" codex.op="user_input"}:turn{otel.name="session_task.turn" thread.id=019d81cf-6f69-7230-98aa-74294ff2dc5a turn.id=019d86c8-0a8e-7013-b442-109aabbf75c9 model=gpt-5.4}: ignoring interface.defaultPrompt: prompt must be at most 128 characters path=/Users/jif/.codex/.tmp/plugins/plugins/life-science-research/.codex-plugin/plugin.json
2026-04-13T12:27:30.402Z WARN  [019d81cf-6f69-7230-98aa-74294ff2dc5a] codex_core::plugins::manifest - session_loop{thread_id=019d81cf-6f69-7230-98aa-74294ff2dc5a}:submission_dispatch{otel.name="op.dispatch.user_input" submission.id="019d86c8-0a8e-7013-b442-109aabbf75c9" codex.op="user_input"}:turn{otel.name="session_task.turn" thread.id=019d81cf-6f69-7230-98aa-74294ff2dc5a turn.id=019d86c8-0a8e-7013-b442-109aabbf75c9 model=gpt-5.4}: ignoring interface.defaultPrompt: prompt must be at most 128 characters path=/Users/jif/.codex/.tmp/plugins/plugins/build-ios-apps/.codex-plugin/plugin.json
2026-04-13T12:27:30.402Z WARN  [019d81cf-6f69-7230-98aa-74294ff2dc5a] codex_core::plugins::manifest - session_loop{thread_id=019d81cf-6f69-7230-98aa-74294ff2dc5a}:submission_dispatch{otel.name="op.dispatch.user_input" submission.id="019d86c8-0a8e-7013-b442-109aabbf75c9" codex.op="user_input"}:turn{otel.name="session_task.turn" thread.id=019d81cf-6f69-7230-98aa-74294ff2dc5a turn.id=019d86c8-0a8e-7013-b442-109aabbf75c9 model=gpt-5.4}: ignoring interface.defaultPrompt: prompt must be at most 128 characters path=/Users/jif/.codex/.tmp/plugins/plugins/life-science-research/.codex-plugin/plugin.json
2026-04-13T12:27:30.405Z WARN  [019d81cf-6f69-7230-98aa-74294ff2dc5a] codex_core::plugins::manifest - session_loop{thread_id=019d81cf-6f69-7230-98aa-74294ff2dc5a}:submission_dispatch{otel.name="op.dispatch.user_input" submission.id="019d86c8-0a8e-7013-b442-109aabbf75c9" codex.op="user_input"}:turn{otel.name="session_task.turn" thread.id=019d81cf-6f69-7230-98aa-74294ff2dc5a turn.id=019d86c8-0a8e-7013-b442-109aabbf75c9 model=gpt-5.4}: ignoring interface.defaultPrompt: prompt must be at most 128 characters path=/Users/jif/.codex/.tmp/plugins/plugins/build-ios-apps/.codex-plugin/plugin.json
2026-04-13T12:27:30.406Z WARN  [019d81cf-6f69-7230-98aa-74294ff2dc5a] codex_core::plugins::manifest - session_loop{thread_id=019d81cf-6f69-7230-98aa-74294ff2dc5a}:submission_dispatch{otel.name="op.dispatch.user_input" submission.id="019d86c8-0a8e-7013-b442-109aabbf75c9" codex.op="user_input"}:turn{otel.name="session_task.turn" thread.id=019d81cf-6f69-7230-98aa-74294ff2dc5a turn.id=019d86c8-0a8e-7013-b442-109aabbf75c9 model=gpt-5.4}: ignoring interface.defaultPrompt: prompt must be at most 128 characters path=/Users/jif/.codex/.tmp/plugins/plugins/life-science-research/.codex-plugin/plugin.json
2026-04-13T12:27:30.408Z WARN  [019d81cf-6f69-7230-98aa-74294ff2dc5a] codex_core::plugins::manifest - session_loop{thread_id=019d81cf-6f69-7230-98aa-74294ff2dc5a}:submission_dispatch{otel.name="op.dispatch.user_input" submission.id="019d86c8-0a8e-7013-b442-109aabbf75c9" codex.op="user_input"}:turn{otel.name="session_task.turn" thread.id=019d81cf-6f69-7230-98aa-74294ff2dc5a turn.id=019d86c8-0a8e-7013-b442-109aabbf75c9 model=gpt-5.4}: ignoring interface.defaultPrompt: prompt must be at most 128 characters path=/Users/jif/.codex/.tmp/plugins/plugins/build-ios-apps/.codex-plugin/plugin.json
```

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

@@ -4,7 +4,6 @@ use tracing::warn;
 
 use super::OPENAI_CURATED_MARKETPLACE_NAME;
 use super::PluginCapabilitySummary;
-use super::PluginReadRequest;
 use super::PluginsManager;
 use crate::config::Config;
 use codex_config::types::ToolSuggestDiscoverableType;
@@ -47,6 +46,7 @@ pub(crate) fn list_tool_suggest_discoverable_plugins(
     else {
         return Ok(Vec::new());
     };
+    let curated_marketplace_name = curated_marketplace.name;
 
     let mut discoverable_plugins = Vec::<DiscoverablePluginInfo>::new();
     for plugin in curated_marketplace.plugins {
@@ -58,17 +58,14 @@ pub(crate) fn list_tool_suggest_discoverable_plugins(
         }
 
         let plugin_id = plugin.id.clone();
-        let plugin_name = plugin.name.clone();
 
-        match plugins_manager.read_plugin_for_config(
+        match plugins_manager.read_plugin_detail_for_marketplace_plugin(
             config,
-            &PluginReadRequest {
-                plugin_name,
-                marketplace_path: curated_marketplace.path.clone(),
-            },
+            &curated_marketplace_name,
+            plugin,
         ) {
             Ok(plugin) => {
-                let plugin: PluginCapabilitySummary = plugin.plugin.into();
+                let plugin: PluginCapabilitySummary = plugin.into();
                 discoverable_plugins.push(DiscoverablePluginInfo {
                     id: plugin.config_name,
                     name: plugin.display_name,

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

@@ -9,6 +9,9 @@ use codex_tools::DiscoverablePluginInfo;
 use codex_utils_absolute_path::AbsolutePathBuf;
 use pretty_assertions::assert_eq;
 use tempfile::tempdir;
+use tracing::Level;
+use tracing_subscriber::fmt::format::FmtSpan;
+use tracing_test::internal::MockWriter;
 
 #[tokio::test]
 async fn list_tool_suggest_discoverable_plugins_returns_uninstalled_curated_plugins() {
@@ -140,3 +143,60 @@ discoverables = [{ type = "plugin", id = "sample@openai-curated" }]
         }]
     );
 }
+
+#[tokio::test]
+async fn list_tool_suggest_discoverable_plugins_does_not_reload_marketplace_per_plugin() {
+    let codex_home = tempdir().expect("tempdir should succeed");
+    let curated_root = crate::plugins::curated_plugins_repo_path(codex_home.path());
+    write_openai_curated_marketplace(
+        &curated_root,
+        &["slack", "build-ios-apps", "life-science-research"],
+    );
+    write_plugins_feature_config(codex_home.path());
+
+    let too_long_prompt = "x".repeat(129);
+    for plugin_name in ["build-ios-apps", "life-science-research"] {
+        write_file(
+            &curated_root.join(format!("plugins/{plugin_name}/.codex-plugin/plugin.json")),
+            &format!(
+                r#"{{
+  "name": "{plugin_name}",
+  "description": "Plugin that includes skills, MCP servers, and app connectors",
+  "interface": {{
+    "defaultPrompt": "{too_long_prompt}"
+  }}
+}}"#
+            ),
+        );
+    }
+
+    let config = load_plugins_config(codex_home.path()).await;
+    let buffer: &'static std::sync::Mutex<Vec<u8>> =
+        Box::leak(Box::new(std::sync::Mutex::new(Vec::new())));
+    let subscriber = tracing_subscriber::fmt()
+        .with_level(true)
+        .with_ansi(false)
+        .with_max_level(Level::WARN)
+        .with_span_events(FmtSpan::NONE)
+        .with_writer(MockWriter::new(buffer))
+        .finish();
+    let _guard = tracing::subscriber::set_default(subscriber);
+
+    let discoverable_plugins = list_tool_suggest_discoverable_plugins(&config).unwrap();
+
+    assert_eq!(discoverable_plugins.len(), 1);
+    assert_eq!(discoverable_plugins[0].id, "slack@openai-curated");
+
+    let logs = String::from_utf8(buffer.lock().expect("buffer lock").clone()).expect("utf8 logs");
+    assert_eq!(logs.matches("ignoring interface.defaultPrompt").count(), 2);
+    assert_eq!(
+        logs.matches("build-ios-apps/.codex-plugin/plugin.json")
+            .count(),
+        1
+    );
+    assert_eq!(
+        logs.matches("life-science-research/.codex-plugin/plugin.json")
+            .count(),
+        1
+    );
+}

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

@@ -952,13 +952,6 @@ impl PluginsManager {
                 marketplace_name,
             });
         };
-        if !self.restriction_product_matches(plugin.policy.products.as_deref()) {
-            return Err(MarketplaceError::PluginNotFound {
-                plugin_name: request.plugin_name.clone(),
-                marketplace_name,
-            });
-        }
-
         let plugin_id = PluginId::new(plugin.name.clone(), marketplace.name.clone()).map_err(
             |err| match err {
                 PluginIdError::Invalid(message) => MarketplaceError::InvalidPlugin(message),
@@ -966,6 +959,51 @@ impl PluginsManager {
         )?;
         let plugin_key = plugin_id.as_key();
         let (installed_plugins, enabled_plugins) = self.configured_plugin_states(config);
+        let plugin = self.read_plugin_detail_for_marketplace_plugin(
+            config,
+            &marketplace.name,
+            ConfiguredMarketplacePlugin {
+                id: plugin_key.clone(),
+                name: plugin.name,
+                source: plugin.source,
+                policy: plugin.policy,
+                interface: plugin.interface,
+                installed: installed_plugins.contains(&plugin_key),
+                enabled: enabled_plugins.contains(&plugin_key),
+            },
+        )?;
+
+        Ok(PluginReadOutcome {
+            marketplace_name: if marketplace.name == OPENAI_CURATED_MARKETPLACE_NAME {
+                OPENAI_CURATED_MARKETPLACE_DISPLAY_NAME.to_string()
+            } else {
+                marketplace.name
+            },
+            marketplace_path: marketplace.path,
+            plugin,
+        })
+    }
+
+    pub(crate) fn read_plugin_detail_for_marketplace_plugin(
+        &self,
+        config: &Config,
+        marketplace_name: &str,
+        plugin: ConfiguredMarketplacePlugin,
+    ) -> Result<PluginDetail, MarketplaceError> {
+        if !self.restriction_product_matches(plugin.policy.products.as_deref()) {
+            return Err(MarketplaceError::PluginNotFound {
+                plugin_name: plugin.name,
+                marketplace_name: marketplace_name.to_string(),
+            });
+        }
+
+        let plugin_id =
+            PluginId::new(plugin.name.clone(), marketplace_name.to_string()).map_err(|err| {
+                match err {
+                    PluginIdError::Invalid(message) => MarketplaceError::InvalidPlugin(message),
+                }
+            })?;
+        let plugin_key = plugin_id.as_key();
         let source_path = match &plugin.source {
             MarketplacePluginSource::Local { path } => path.clone(),
         };
@@ -1001,27 +1039,19 @@ impl PluginsManager {
         mcp_server_names.sort_unstable();
         mcp_server_names.dedup();
 
-        Ok(PluginReadOutcome {
-            marketplace_name: if marketplace.name == OPENAI_CURATED_MARKETPLACE_NAME {
-                OPENAI_CURATED_MARKETPLACE_DISPLAY_NAME.to_string()
-            } else {
-                marketplace.name
-            },
-            marketplace_path: marketplace.path,
-            plugin: PluginDetail {
-                id: plugin_key.clone(),
-                name: plugin.name,
-                description,
-                source: plugin.source,
-                policy: plugin.policy,
-                interface: plugin.interface,
-                installed: installed_plugins.contains(&plugin_key),
-                enabled: enabled_plugins.contains(&plugin_key),
-                skills: resolved_skills.skills,
-                disabled_skill_paths: resolved_skills.disabled_skill_paths,
-                apps,
-                mcp_server_names,
-            },
+        Ok(PluginDetail {
+            id: plugin_key,
+            name: plugin.name,
+            description,
+            source: plugin.source,
+            policy: plugin.policy,
+            interface: plugin.interface,
+            installed: plugin.installed,
+            enabled: plugin.enabled,
+            skills: resolved_skills.skills,
+            disabled_skill_paths: resolved_skills.disabled_skill_paths,
+            apps,
+            mcp_server_names,
         })
     }