diff --git a/issue_core/cli/legacy.py b/issue_core/cli/legacy.py
new file mode 100644
index 0000000..0b8173c
--- /dev/null
+++ b/issue_core/cli/legacy.py
@@ -0,0 +1,18 @@
+"""
+Legacy entry-point shims for renamed console scripts.
+
+Kept so that callers using the pre-rename names get a clear, loud migration
+hint instead of `command not found`.
+"""
+
+import sys
+
+
+def issue_tracker_hint() -> None:
+    """`issue-tracker` -> `issue-core` migration hint."""
+    sys.stderr.write(
+        "issue-tracker has been renamed to issue-core.\n"
+        "  - Run `issue-core <args>` (or the short alias `issue <args>`) instead.\n"
+        "  - The Python package is now `issue_core` (was `issue_tracker`).\n"
+    )
+    sys.exit(2)
diff --git a/pyproject.toml b/pyproject.toml
index df79bb6..ddaafd0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -78,6 +78,7 @@ Repository = "https://github.com/coulomb/issue-core.git"
 [project.scripts]
 issue = "issue_core.cli.main:main"
 issue-core = "issue_core.cli.main:main"
+issue-tracker = "issue_core.cli.legacy:issue_tracker_hint"
 
 [tool.setuptools.packages.find]
 include = ["issue_core*"]