diff --git a/pyproject.toml b/pyproject.toml
index 44e0882..34d9c62 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "note-mcp"
-version = "0.1.0"
+version = "0.0.1"
 description = "MCP server for managing note.com articles"
 readme = "README.md"
 requires-python = ">=3.13"
diff --git a/src/note_mcp/server.py b/src/note_mcp/server.py
index 3508fbf..9d3a0ec 100644
--- a/src/note_mcp/server.py
+++ b/src/note_mcp/server.py
@@ -408,6 +408,7 @@ async def note_get_preview_html(
 @mcp.tool()
 async def note_publish_article(
     article_id: Annotated[str | None, "公開する下書き記事のID（新規作成時は省略）"] = None,
+    file_path: Annotated[str | None, "タグを取得するMarkdownファイルのパス"] = None,
     title: Annotated[str | None, "記事タイトル（新規作成時は必須）"] = None,
     body: Annotated[str | None, "記事本文（Markdown形式、新規作成時は必須）"] = None,
     tags: Annotated[list[str] | None, "記事のタグ（#なしでも可）"] = None,
@@ -418,15 +419,21 @@ async def note_publish_article(
     article_idを指定すると既存の下書きを公開します。
     title/bodyを指定すると新規記事を作成して公開します。
 
+    既存の下書きを公開する際、tagsが未指定でfile_pathが指定されている場合、
+    Markdownファイルのフロントマターからタグを取得します。
+
     Args:
         article_id: 公開する下書き記事のID（新規作成時は省略）
+        file_path: タグを取得するMarkdownファイルのパス（既存下書き公開時のみ有効）
         title: 記事タイトル（新規作成時は必須）
         body: 記事本文（Markdown形式、新規作成時は必須）
-        tags: 記事のタグ（オプション）
+        tags: 記事のタグ（オプション、file_pathより優先）
 
     Returns:
         公開結果のメッセージ（記事URLを含む）
     """
+    from pathlib import Path
+
     session = _session_manager.load()
     if session is None or session.is_expired():
         return "セッションが無効です。note_loginでログインしてください。"
@@ -434,10 +441,22 @@ async def note_publish_article(
     # Determine whether to publish existing or create new
     try:
         if article_id is not None:
-            # Publish existing draft (Issue #252: pass tags to set during publish)
-            article = await publish_article(session, article_id=article_id, tags=tags)
+            # Publish existing draft
+            publish_tags = tags
+
+            # Issue #258: If tags not specified but file_path is, get tags from file
+            if publish_tags is None and file_path is not None:
+                try:
+                    parsed = parse_markdown_file(Path(file_path))
+                    publish_tags = parsed.tags if parsed.tags else []
+                except FileNotFoundError:
+                    return f"ファイルが見つかりません: {file_path}"
+                except ValueError as e:
+                    return f"ファイル解析エラー: {e}"
+
+            article = await publish_article(session, article_id=article_id, tags=publish_tags)
         elif title is not None and body is not None:
-            # Create and publish new article
+            # Create and publish new article (file_path is ignored for new articles)
             article_input = ArticleInput(
                 title=title,
                 body=body,
diff --git a/tests/contract/test_mcp_tools.py b/tests/contract/test_mcp_tools.py
index 26c9e86..bc94fb8 100644
--- a/tests/contract/test_mcp_tools.py
+++ b/tests/contract/test_mcp_tools.py
@@ -335,7 +335,7 @@ def test_note_publish_article_schema(self) -> None:
         assert "properties" in schema
 
         # Exact properties match
-        expected_properties = {"article_id", "title", "body", "tags"}
+        expected_properties = {"article_id", "file_path", "title", "body", "tags"}
         actual_properties = set(schema.get("properties", {}).keys())
         assert actual_properties == expected_properties, (
             f"Schema mismatch: "
diff --git a/tests/unit/test_server.py b/tests/unit/test_server.py
index bb7d2f1..755a933 100644
--- a/tests/unit/test_server.py
+++ b/tests/unit/test_server.py
@@ -426,3 +426,247 @@ async def test_eyecatch_api_error_shows_filename(
             assert "⚠️ アイキャッチ画像アップロード失敗" in result
             assert "header.png" in result
             assert "Server error" in result
+
+
+class TestNotePublishArticle:
+    """Tests for note_publish_article function."""
+
+    @pytest.mark.asyncio
+    async def test_file_path_provides_tags_when_tags_not_specified(
+        self,
+        tmp_path: Path,
+    ) -> None:
+        """file_path指定時、タグがファイルから取得されて公開される。"""
+        # Create a test markdown file with tags
+        md_file = tmp_path / "test.md"
+        md_file.write_text("---\ntitle: Test Article\ntags:\n  - Python\n  - MCP\n---\n\nBody content")
+
+        mock_session = MagicMock()
+        mock_article = Article(
+            id="123456789",
+            key="n1234567890ab",
+            title="Test Article",
+            status=ArticleStatus.PUBLISHED,
+            body="Body content",
+            url="https://note.com/user/n/n1234567890ab",
+        )
+
+        with (
+            patch("note_mcp.server._session_manager") as mock_session_manager,
+            patch("note_mcp.server.publish_article", new_callable=AsyncMock) as mock_publish,
+        ):
+            mock_session.is_expired.return_value = False
+            mock_session_manager.load.return_value = mock_session
+            mock_publish.return_value = mock_article
+
+            from note_mcp.server import note_publish_article
+
+            fn = note_publish_article.fn
+            result = await fn(article_id="123456789", file_path=str(md_file))
+
+            # publish_article should be called with tags from file
+            mock_publish.assert_called_once()
+            call_kwargs = mock_publish.call_args[1]
+            assert call_kwargs["tags"] == ["Python", "MCP"]
+
+            # Result should indicate success
+            assert "公開しました" in result
+            assert "123456789" in result
+
+    @pytest.mark.asyncio
+    async def test_tags_parameter_takes_precedence_over_file_path(
+        self,
+        tmp_path: Path,
+    ) -> None:
+        """tagsとfile_path両方指定時、tagsが優先される。"""
+        # Create a test markdown file with tags
+        md_file = tmp_path / "test.md"
+        md_file.write_text("---\ntitle: Test Article\ntags:\n  - FileTag1\n  - FileTag2\n---\n\nBody")
+
+        mock_session = MagicMock()
+        mock_article = Article(
+            id="123456789",
+            key="n1234567890ab",
+            title="Test Article",
+            status=ArticleStatus.PUBLISHED,
+            body="Body",
+            url="https://note.com/user/n/n1234567890ab",
+        )
+
+        with (
+            patch("note_mcp.server._session_manager") as mock_session_manager,
+            patch("note_mcp.server.publish_article", new_callable=AsyncMock) as mock_publish,
+            patch("note_mcp.server.parse_markdown_file") as mock_parse,
+        ):
+            mock_session.is_expired.return_value = False
+            mock_session_manager.load.return_value = mock_session
+            mock_publish.return_value = mock_article
+
+            from note_mcp.server import note_publish_article
+
+            fn = note_publish_article.fn
+            # Specify both tags and file_path
+            result = await fn(
+                article_id="123456789",
+                tags=["ExplicitTag1", "ExplicitTag2"],
+                file_path=str(md_file),
+            )
+
+            # publish_article should be called with explicit tags, not file tags
+            mock_publish.assert_called_once()
+            call_kwargs = mock_publish.call_args[1]
+            assert call_kwargs["tags"] == ["ExplicitTag1", "ExplicitTag2"]
+
+            # parse_markdown_file should NOT be called when tags are provided
+            mock_parse.assert_not_called()
+
+            assert "公開しました" in result
+
+    @pytest.mark.asyncio
+    async def test_file_path_without_tags_publishes_without_tags(
+        self,
+        tmp_path: Path,
+    ) -> None:
+        """file_path指定、タグなしの場合、タグなしで公開される。"""
+        # Create a test markdown file without tags
+        md_file = tmp_path / "test.md"
+        md_file.write_text("---\ntitle: Test Article\n---\n\nBody without tags")
+
+        mock_session = MagicMock()
+        mock_article = Article(
+            id="123456789",
+            key="n1234567890ab",
+            title="Test Article",
+            status=ArticleStatus.PUBLISHED,
+            body="Body without tags",
+            url="https://note.com/user/n/n1234567890ab",
+        )
+
+        with (
+            patch("note_mcp.server._session_manager") as mock_session_manager,
+            patch("note_mcp.server.publish_article", new_callable=AsyncMock) as mock_publish,
+        ):
+            mock_session.is_expired.return_value = False
+            mock_session_manager.load.return_value = mock_session
+            mock_publish.return_value = mock_article
+
+            from note_mcp.server import note_publish_article
+
+            fn = note_publish_article.fn
+            result = await fn(article_id="123456789", file_path=str(md_file))
+
+            # publish_article should be called with empty tags list
+            mock_publish.assert_called_once()
+            call_kwargs = mock_publish.call_args[1]
+            assert call_kwargs["tags"] == []
+
+            assert "公開しました" in result
+
+    @pytest.mark.asyncio
+    async def test_file_path_not_found_returns_error(
+        self,
+        tmp_path: Path,
+    ) -> None:
+        """file_pathが存在しない場合、適切なエラーメッセージを返す。"""
+        non_existent_file = tmp_path / "non_existent.md"
+
+        mock_session = MagicMock()
+
+        with (
+            patch("note_mcp.server._session_manager") as mock_session_manager,
+            patch("note_mcp.server.publish_article", new_callable=AsyncMock) as mock_publish,
+        ):
+            mock_session.is_expired.return_value = False
+            mock_session_manager.load.return_value = mock_session
+
+            from note_mcp.server import note_publish_article
+
+            fn = note_publish_article.fn
+            result = await fn(article_id="123456789", file_path=str(non_existent_file))
+
+            # publish_article should NOT be called
+            mock_publish.assert_not_called()
+
+            # Result should contain error message
+            assert "ファイルが見つかりません" in result
+            assert str(non_existent_file) in result
+
+    @pytest.mark.asyncio
+    async def test_file_path_ignored_for_new_article(
+        self,
+        tmp_path: Path,
+    ) -> None:
+        """新規作成時（article_idなし）はfile_pathが無視される。"""
+        # Create a test markdown file with tags
+        md_file = tmp_path / "test.md"
+        md_file.write_text("---\ntitle: File Title\ntags:\n  - FileTag\n---\n\nFile Body")
+
+        mock_session = MagicMock()
+        mock_article = Article(
+            id="123456789",
+            key="n1234567890ab",
+            title="New Title",
+            status=ArticleStatus.PUBLISHED,
+            body="New Body",
+            url="https://note.com/user/n/n1234567890ab",
+        )
+
+        with (
+            patch("note_mcp.server._session_manager") as mock_session_manager,
+            patch("note_mcp.server.publish_article", new_callable=AsyncMock) as mock_publish,
+            patch("note_mcp.server.parse_markdown_file") as mock_parse,
+        ):
+            mock_session.is_expired.return_value = False
+            mock_session_manager.load.return_value = mock_session
+            mock_publish.return_value = mock_article
+
+            from note_mcp.server import note_publish_article
+
+            fn = note_publish_article.fn
+            # New article creation (no article_id)
+            result = await fn(
+                title="New Title",
+                body="New Body",
+                file_path=str(md_file),
+            )
+
+            # parse_markdown_file should NOT be called for new article
+            mock_parse.assert_not_called()
+
+            # publish_article should be called with article_input (not article_id)
+            mock_publish.assert_called_once()
+            call_kwargs = mock_publish.call_args[1]
+            assert "article_input" in call_kwargs
+            assert "article_id" not in call_kwargs
+
+            assert "公開しました" in result
+
+    @pytest.mark.asyncio
+    async def test_file_path_with_invalid_markdown_returns_error(
+        self,
+        tmp_path: Path,
+    ) -> None:
+        """file_pathのMarkdownが解析できない場合、エラーメッセージを返す。"""
+        # Create a markdown file without title (no frontmatter, no heading)
+        md_file = tmp_path / "no_title.md"
+        md_file.write_text("No frontmatter, no heading\n\nJust body content")
+
+        mock_session = MagicMock()
+
+        with (
+            patch("note_mcp.server._session_manager") as mock_session_manager,
+            patch("note_mcp.server.publish_article", new_callable=AsyncMock) as mock_publish,
+        ):
+            mock_session.is_expired.return_value = False
+            mock_session_manager.load.return_value = mock_session
+
+            from note_mcp.server import note_publish_article
+
+            fn = note_publish_article.fn
+            result = await fn(article_id="123456789", file_path=str(md_file))
+
+            # publish_article should NOT be called
+            mock_publish.assert_not_called()
+
+            # Result should contain error message
+            assert "ファイル解析エラー" in result
diff --git a/uv.lock b/uv.lock
index 60160e9..32235ae 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1138,7 +1138,7 @@ wheels = [
 
 [[package]]
 name = "note-mcp"
-version = "0.1.0"
+version = "0.0.1"
 source = { editable = "." }
 dependencies = [
     { name = "fastmcp" },