diff --git a/internal/parser/parser/align_test.go b/internal/parser/parser/align_test.go
index 51911f2279..b138e764f9 100644
--- a/internal/parser/parser/align_test.go
+++ b/internal/parser/parser/align_test.go
@@ -317,14 +317,6 @@ func MarkdownAlignOptions(delimiter string) AlignOptions {
 	}
 }
 
-// DefaultMarkdownDelimiter is the flow parser's default Markdown delimiter
-// set, used when generating/loading the golden baseline.
-const DefaultMarkdownDelimiter = "\n!?;。；！？"
-
-// DefaultTextCodeDelimiter is the flow parser's default text&code delimiter
-// set, used when generating/loading the golden baseline.
-const DefaultTextCodeDelimiter = "\n!?;。；！？"
-
 // TextCodeAlignOptions returns the normalizer preset for the text&code family.
 // Unlike markdown it has no syntax or HTML markup to strip, so only the
 // delimiter-set replacement and whitespace collapse run:
diff --git a/internal/parser/parser/delimiter.go b/internal/parser/parser/delimiter.go
new file mode 100644
index 0000000000..9ab0e62e1d
--- /dev/null
+++ b/internal/parser/parser/delimiter.go
@@ -0,0 +1,34 @@
+//
+// Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// Warranties, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND
+// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+package parser
+
+// DefaultMarkdownDelimiter is the flow parser's default markdown delimiter
+// set, used when generating/loading the golden baseline and when the markdown
+// alignment test normalizes delimiters. It is a non-test symbol so both the
+// production parsers and the alignment tests share one source of truth.
+const DefaultMarkdownDelimiter = "\n!?;。；！？"
+
+// DefaultTextCodeDelimiter is the flow parser's default text&code delimiter
+// set, used by TextParser and when the text&code alignment test normalizes
+// delimiters. It is a non-test symbol so both the production parser and the
+// alignment tests share one source of truth (no duplicate hard-coded copy in
+// text_parser.go, which would otherwise drift silently).
+const DefaultTextCodeDelimiter = "\n!?;。；！？"