fix(skills): use invocation-neutral hook guidance

Describe hook-derived references as command invocations so dollar-prefixed skills do not receive contradictory slash-command terminology.

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 02f9e138-da58-4a60-93b9-eae659d2aa19

Author: BenBtg

src/specify_cli/integrations/base.py

@@ -35,7 +35,7 @@
     from .manifest import IntegrationManifest
 
 _HOOK_COMMAND_NOTE = (
-    "- When constructing slash commands from hook command names, "
+    "- When constructing command invocations from hook command names, "
     "replace dots (`.`) with hyphens (`-`). "
     "For example, `speckit.git.commit` → `/speckit-git-commit`.\n"
 )

tests/integrations/test_integration_base_skills.py

@@ -191,7 +191,7 @@ def test_hook_note_injected_for_each_instruction_independently(self):
             "---\n"
             "name: test\n"
             "---\n\n"
-            "- When constructing slash commands from hook command names, "
+            "- When constructing command invocations from hook command names, "
             "replace dots (`.`) with hyphens (`-`). "
             "For example, `speckit.git.commit` → `/speckit-git-commit`.\n"
             "- For each executable hook, output the following first block:\n"

tests/integrations/test_integration_codex.py

@@ -108,6 +108,8 @@ def test_hook_note_injected_in_skills_with_hooks(self, tmp_path):
         assert "replace dots" in content, (
             "speckit-specify should have dot-to-hyphen hook note"
         )
+        assert "constructing command invocations" in content
+        assert "constructing slash commands" not in content
 
     def test_hook_note_not_in_skills_without_hooks(self):
         """Skills without hook sections should not get the note."""