Include skills in debug prompt input output (#36311)

## What changed

Register the skills extension when running `codex debug prompt-input`, using
the configured instruction, bundled skill, orchestrator skill, and skill search
settings when building the model-visible prompt input list.

GitOrigin-RevId: bc5cd2b5915daeca0bf589407c32ce083b8e7087

codex-rs/Cargo.lock

@@ -2399,6 +2399,7 @@ dependencies = [
  "codex-rollout",
  "codex-rollout-trace",
  "codex-sandboxing",
+ "codex-skills-extension",
  "codex-state",
  "codex-stdio-to-uds",
  "codex-terminal-detection",

codex-rs/cli/Cargo.toml

@@ -63,6 +63,7 @@ codex-rmcp-client = { workspace = true }
 codex-rollout = { workspace = true }
 codex-rollout-trace = { workspace = true }
 codex-sandboxing = { workspace = true }
+codex-skills-extension = { workspace = true }
 codex-state = { workspace = true }
 codex-stdio-to-uds = { workspace = true }
 codex-terminal-detection = { workspace = true }

codex-rs/cli/src/main.rs

@@ -68,6 +68,7 @@ use state_db_recovery as local_state_db;
 
 use codex_config::LoaderOverrides;
 use codex_core::build_models_manager;
+use codex_core::config::Config;
 use codex_core::config::ConfigBuilder;
 use codex_core::config::ConfigOverrides;
 use codex_core::config::edit::ConfigEditsBuilder;
@@ -2056,6 +2057,16 @@ async fn run_debug_prompt_input_command(
         config.chatgpt_base_url.clone(),
         config.http_client_factory(),
     );
+    codex_skills_extension::install(&mut extensions, |config: &Config| {
+        codex_skills_extension::SkillsExtensionConfig {
+            include_instructions: config.include_skill_instructions,
+            bundled_skills_enabled: config.bundled_skills_enabled(),
+            orchestrator_skills_enabled: config.orchestrator_skills_enabled,
+            shadow_selection_enabled: config
+                .features
+                .enabled(codex_features::Feature::SkillSearch),
+        }
+    });
     let prompt_input = codex_core::build_prompt_input(
         config,
         input,