diff --git a/src/project_manager.py b/src/project_manager.py
index 5df65f45..d412060b 100644
--- a/src/project_manager.py
+++ b/src/project_manager.py
@@ -29,7 +29,7 @@ def now_ts() -> str:
 def parse_ts(s: str) -> Optional[datetime.datetime]:
  try:
   return datetime.datetime.strptime(s, TS_FMT)
- except Exception:
+ except (ValueError, TypeError):
   return None
   # ── entry serialisation ──────────────────────────────────────────────────────
 
@@ -95,7 +95,7 @@ def get_git_commit(git_dir: str) -> str:
    capture_output=True, text=True, cwd=git_dir, timeout=5,
   )
   return r.stdout.strip() if r.returncode == 0 else ""
- except Exception:
+ except (OSError, subprocess.SubprocessError, subprocess.TimeoutExpired):
   return ""
 
   # ── default structures ───────────────────────────────────────────────────────
@@ -360,9 +360,9 @@ def get_all_tracks(base_dir: Union[str, Path] = ".") -> list[dict[str, Any]]:
     track_info["total"]    = progress["total"]
     track_info["progress"] = progress["percentage"] / 100.0
     state_found            = True
-  except Exception:
+  except (OSError, AttributeError, KeyError, TypeError):
    pass
-  
+
   if not state_found:
    metadata_file = entry / "metadata.json"
    if metadata_file.exists():
@@ -372,9 +372,9 @@ def get_all_tracks(base_dir: Union[str, Path] = ".") -> list[dict[str, Any]]:
       track_info["id"]     = data.get("id", data.get("track_id", track_id))
       track_info["title"]  = data.get("title", data.get("name", data.get("description", track_id)))
       track_info["status"] = data.get("status", "unknown")
-    except Exception:
+    except (OSError, json.JSONDecodeError, UnicodeDecodeError):
      pass
-  
+
   if track_info["total"] == 0:
    plan_file = entry / "plan.md"
    if plan_file.exists():
@@ -387,7 +387,7 @@ def get_all_tracks(base_dir: Union[str, Path] = ".") -> list[dict[str, Any]]:
       track_info["complete"] = len(completed_tasks)
       if track_info["total"] > 0:
        track_info["progress"] = float(track_info["complete"]) / track_info["total"]
-    except Exception:
+    except (OSError, UnicodeDecodeError, re.error):
      pass
   
   results.append(track_info)
diff --git a/src/startup_profiler.py b/src/startup_profiler.py
index 63461560..9d153ca8 100644
--- a/src/startup_profiler.py
+++ b/src/startup_profiler.py
@@ -37,7 +37,7 @@ class StartupProfiler:
    try:
     sys.stderr.write(f"[startup] {name}: {(p.end_ts - p.start_ts) * 1000.0:.1f}ms\n")
     sys.stderr.flush()
-   except Exception:
+   except OSError:
     pass
 
  def snapshot(self) -> dict[str, Any]: