diff --git a/nonebot/dependencies/__init__.py b/nonebot/dependencies/__init__.py
index 80db9840..8cc331cc 100644
--- a/nonebot/dependencies/__init__.py
+++ b/nonebot/dependencies/__init__.py
@@ -131,6 +131,7 @@ def get_dependent(
     return dependent
 
 
+# FIXME: check param types first then run dependencies
 async def solve_dependencies(
     *,
     _dependent: Dependent,
diff --git a/nonebot/message.py b/nonebot/message.py
index f2ff0ca9..3f89b971 100644
--- a/nonebot/message.py
+++ b/nonebot/message.py
@@ -97,6 +97,9 @@ def run_postprocessor(func: T_RunPostProcessor) -> T_RunPostProcessor:
     return func
 
 
+# FIXME: run handler with try/except skipped exception
+
+
 async def _check_matcher(
     priority: int,
     Matcher: Type[Matcher],
diff --git a/nonebot/params.py b/nonebot/params.py
index 484c4d21..79747ca4 100644
--- a/nonebot/params.py
+++ b/nonebot/params.py
@@ -31,6 +31,7 @@ class EventParam(Param):
         return event
 
 
+# FIXME: may detect error param
 class StateParam(Param):
     @classmethod
     def _check(cls, name: str, param: inspect.Parameter) -> bool: