diff --git a/agent_go/api.py b/agent_go/api.py
index 710d4d9..8d5735f 100644
--- a/agent_go/api.py
+++ b/agent_go/api.py
@@ -1,5 +1,4 @@
-import sys, os, subprocess, json, re, time, threading, shlex, signal, logging
-from concurrent.futures import ThreadPoolExecutor, as_completed
+import json, re, time, logging
 from pathlib import Path
 from datetime import datetime
 from typing import Any, Optional
diff --git a/agent_go/cli.py b/agent_go/cli.py
index 3d6337b..7d6f9a0 100644
--- a/agent_go/cli.py
+++ b/agent_go/cli.py
@@ -1,5 +1,4 @@
-import sys, os, subprocess, json, re, time, threading, shlex, signal, logging, argparse
-from concurrent.futures import ThreadPoolExecutor, as_completed
+import sys, os, subprocess, json, time, logging, argparse
 from pathlib import Path
 from datetime import datetime
 from typing import Any, Optional
@@ -11,7 +10,7 @@
 from .ui import confirm_plan, plan_to_md, plan_to_subtasks, confirm_subtasks
 from .utils import read_reference_docs, _detect_tool_versions
 from .pipeline import _run_pipeline
-from .skills import load_skill, load_skills, discover_skills, render_skill_for_plan, render_skill_for_execution, list_skills
+from .skills import load_skills, discover_skills, render_skill_for_plan, list_skills
 from .agents import load_agent_type, list_agent_types
 from .eval import cmd_eval
 from .tui import cmd_status_tui
diff --git a/agent_go/config.py b/agent_go/config.py
index f81a8ef..a7173ea 100644
--- a/agent_go/config.py
+++ b/agent_go/config.py
@@ -1,5 +1,4 @@
-import sys, os, subprocess, json, re, time, threading, shlex, signal, logging
-from concurrent.futures import ThreadPoolExecutor, as_completed
+import os, json, logging
 from pathlib import Path
 from datetime import datetime
 from typing import Any
diff --git a/agent_go/executor.py b/agent_go/executor.py
index 87b3d5b..9a5e87b 100644
--- a/agent_go/executor.py
+++ b/agent_go/executor.py
@@ -1,10 +1,7 @@
-import sys, os, subprocess, json, re, time, threading, shlex, signal, logging, shutil
-from concurrent.futures import ThreadPoolExecutor, as_completed
-from pathlib import Path
-from datetime import datetime
+import os, subprocess, re, time, shlex, shutil
 
 from .config import log_event
-from .utils import _format_commit, _safe_append_to_file, _is_safe_verification_command, _log_rejected_command, _slugify
+from .utils import _format_commit, _is_safe_verification_command, _log_rejected_command
 from .subtask import _git_merge_upstream, _run_headless
 from .agents import load_agent_type, get_claude_command, get_agent_env
 from .git_utils import _worktree_create
diff --git a/agent_go/git_utils.py b/agent_go/git_utils.py
index e4f9ce1..158a943 100644
--- a/agent_go/git_utils.py
+++ b/agent_go/git_utils.py
@@ -1,7 +1,5 @@
-import sys, os, subprocess, json, re, time, threading, shlex, signal, logging
-from concurrent.futures import ThreadPoolExecutor, as_completed
+import subprocess, logging
 from pathlib import Path
-from datetime import datetime
 from typing import Any
 
 logger = logging.getLogger(__name__)
diff --git a/agent_go/pipeline.py b/agent_go/pipeline.py
index b631fb3..0cc5659 100644
--- a/agent_go/pipeline.py
+++ b/agent_go/pipeline.py
@@ -1,7 +1,6 @@
-import sys, os, subprocess, json, re, time, threading, shlex, signal, logging
+import sys, os, subprocess, json, threading, signal, logging
 from concurrent.futures import ThreadPoolExecutor, as_completed
 from pathlib import Path
-from datetime import datetime
 from typing import Any, Optional
 
 logger = logging.getLogger(__name__)
diff --git a/agent_go/subtask.py b/agent_go/subtask.py
index 9358b7a..59b734b 100644
--- a/agent_go/subtask.py
+++ b/agent_go/subtask.py
@@ -1,8 +1,7 @@
-import sys, os, subprocess, json, re, time, threading, shlex, signal, logging
-from concurrent.futures import ThreadPoolExecutor, as_completed
+import subprocess, json, re, time, threading, logging
 from pathlib import Path
 from datetime import datetime
-from typing import Any, Optional
+from typing import Optional
 
 from .config import log_event
 
diff --git a/agent_go/ui.py b/agent_go/ui.py
index 9337889..9ce189c 100644
--- a/agent_go/ui.py
+++ b/agent_go/ui.py
@@ -1,7 +1,5 @@
-import sys, os, subprocess, json, re, time, threading, shlex, signal, logging
-from concurrent.futures import ThreadPoolExecutor, as_completed
+import sys, os, logging
 from pathlib import Path
-from datetime import datetime
 from typing import Any, Optional
 
 from .config import safe_input, log_event
diff --git a/agent_go/utils.py b/agent_go/utils.py
index 9f6b1e2..e4b477b 100644
--- a/agent_go/utils.py
+++ b/agent_go/utils.py
@@ -1,8 +1,6 @@
-import sys, os, subprocess, json, re, time, threading, shlex, signal, logging
-from concurrent.futures import ThreadPoolExecutor, as_completed
+import subprocess, json, re, time, shlex, logging
 from pathlib import Path
 from datetime import datetime
-from typing import Any
 
 __all__ = ["read_reference_docs", "SAFE_VERIFICATION_PREFIXES"]
 
diff --git a/agent_go/workflow_gen.py b/agent_go/workflow_gen.py
index a60f168..23371a6 100644
--- a/agent_go/workflow_gen.py
+++ b/agent_go/workflow_gen.py
@@ -1,7 +1,7 @@
 """GitHub Actions workflow auto-generation."""
 
 from pathlib import Path
-from typing import Any, Optional
+from typing import Optional
 
 __all__ = ["cmd_ci"]