diff --git a/packages/client-runtime/src/markdownLinks.test.ts b/packages/client-runtime/src/markdownLinks.test.ts
index 42cd7a35e4732e445290f5536f65ad01fbe21cf5..4aea947b87d6e6df7d8515cfe59bac7a4e53d5c4 100644
--- a/packages/client-runtime/src/markdownLinks.test.ts
+++ b/packages/client-runtime/src/markdownLinks.test.ts
@@ -3,7 +3,6 @@ import { describe, expect, it } from "vite-plus/test";
 import {
   fileBasename,
   inlineCodeFilePathCandidate,
-  isConventionalFilePosition,
   parseFileUrlHref,
   parseMarkdownFileLink,
   splitFilePathPosition,
@@ -28,15 +27,6 @@ describe("inlineCodeFilePathCandidate", () => {
   });
 });
 
-describe("isConventionalFilePosition", () => {
-  it("distinguishes extensionless file locations from labels and ports", () => {
-    expect(isConventionalFilePosition("Dockerfile:8:2")).toBe(true);
-    expect(isConventionalFilePosition("Makefile")).toBe(false);
-    expect(isConventionalFilePosition("TODO:12")).toBe(false);
-    expect(isConventionalFilePosition("port:3000")).toBe(false);
-  });
-});
-
 describe("parseFileUrlHref", () => {
   it.each([
     ["file:///Users/julius/project/src/main.ts#L42", "/Users/julius/project/src/main.ts", "#L42"],
diff --git a/packages/client-runtime/src/markdownLinks.ts b/packages/client-runtime/src/markdownLinks.ts
index 2e455655d0050da93992bd5966f2f57289de63f1..29a337e49c424c02118b59d0f0a66410b1564c33 100644
--- a/packages/client-runtime/src/markdownLinks.ts
+++ b/packages/client-runtime/src/markdownLinks.ts
@@ -15,7 +15,6 @@ const INLINE_CODE_DISQUALIFIER_PATTERN = /[\s`]/;
 const PATH_SEPARATOR_PATTERN = /[\\/]/;
 const FILE_EXTENSION_PATTERN = /\.[A-Za-z0-9_-]+$/;
 const NUMERIC_DOTTED_PATTERN = /^\d+(?:\.\d+)+$/;
-const BARE_EXTENSIONLESS_POSITION_PATTERN = /^[A-Za-z0-9_-]+(?::\d+){1,2}$/;
 // Standard OS and dev-container roots; deliberately excludes app-route-ish
 // prefixes like /app/ or /chat/ so SPA routes never read as files.
 const POSIX_FILE_ROOT_PREFIXES = [
@@ -152,14 +151,6 @@ function looksLikeHostname(segment: string, hasPosition: boolean): boolean {
   return !hasPosition && COUNTRY_HOSTNAME_TLDS.has(lastLabel);
 }
 
-/** Recognizes conventional extensionless filenames with an explicit line position. */
-export function isConventionalFilePosition(path: string): boolean {
-  return (
-    BARE_EXTENSIONLESS_POSITION_PATTERN.test(path) &&
-    EXTENSIONLESS_FILE_NAMES.has(path.replace(POSITION_SUFFIX_PATTERN, ""))
-  );
-}
-
 /**
  * Picks path-shaped inline code for the client's markdown file-link resolver.
  * It does not resolve paths or turn plain prose and fenced code into links.