Step 2 implemented

tests/test_prompts.py

@@ -0,0 +1,42 @@
+"""Tests for prompt artifacts in prompts/."""
+
+from pathlib import Path
+
+
+PROMPT_PATH = Path("prompts/transcribe_document.md")
+
+
+def _prompt_text() -> str:
+    """Read prompt text from the canonical prompt file."""
+    return PROMPT_PATH.read_text(encoding="utf-8")
+
+
+class TestPromptArtifact:
+    """Verify prompt artifact presence and baseline semantics."""
+
+    def test_prompt_file_exists(self):
+        """Canonical transcription prompt file exists."""
+        assert PROMPT_PATH.exists()
+
+    def test_prompt_file_is_not_empty(self):
+        """Canonical prompt file has non-whitespace content."""
+        text = _prompt_text()
+        assert text.strip()
+
+    def test_prompt_mentions_verbatim_behavior(self):
+        """Prompt explicitly enforces verbatim transcription behavior."""
+        text = _prompt_text().lower()
+        assert "verbatim" in text
+        assert "do not summarize" in text
+
+    def test_prompt_includes_uncertainty_and_illegible_markers(self):
+        """Prompt contains conventions for uncertainty and illegible text."""
+        text = _prompt_text().lower()
+        assert "[boston?]" in text
+        assert "[illegible]" in text
+
+    def test_prompt_includes_deleted_and_inserted_conventions(self):
+        """Prompt contains conventions for deleted and inserted text."""
+        text = _prompt_text().lower()
+        assert "[deleted:" in text
+        assert "[inserted:" in text