diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index 46e1ce12..f54fed13 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -5,6 +5,10 @@ on:
     branches:
       - master
   pull_request:
+    paths:
+      - "nonebot/**"
+      - "packages/**"
+      - "tests/**"
 
 jobs:
   test:
diff --git a/.github/workflows/publish-bot.yml b/.github/workflows/publish-bot.yml
index dc67dd0c..5807808c 100644
--- a/.github/workflows/publish-bot.yml
+++ b/.github/workflows/publish-bot.yml
@@ -8,10 +8,15 @@ on:
   issue_comment:
     types: [created]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.issue.number || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   plugin_test:
     runs-on: ubuntu-latest
     name: nonebot2 plugin test
+    if: github.event_name != 'issue_comment' || !github.event.issue.pull_request
     permissions:
       issues: read
     outputs:
@@ -19,6 +24,7 @@ jobs:
       output: ${{ steps.plugin-test.outputs.OUTPUT }}
     steps:
       - name: Install Poetry
+        if: ${{ !startsWith(github.event_name, 'pull_request') }}
         run: pipx install poetry
       - name: Setup Python
         uses: actions/setup-python@v4