v0.2.3: Better error details and markdown table stripping

- Error events now always show a message (fallback to 'tool call failed')
- Markdown tables stripped from assistant_response (no more pipe soup)
- Code blocks, list markers, numbered lists stripped
- Multiple spaces collapsed
- Error messages also stripped of markdown before display

107 tests. Zero dependencies.

Co-authored-by: Ona <no-reply@ona.com>

Author: Siddhant-K-code

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "agent-strace"
-version = "0.2.2"
+version = "0.2.3"
 description = "strace for AI agents. Capture and replay every tool call, LLM request, and decision point."
 readme = "README.md"
 license = "AGPL-3.0-only"

src/agent_trace/__init__.py

@@ -1,3 +1,3 @@
 """agent-trace: strace for AI agents."""
 
-__version__ = "0.2.2"
+__version__ = "0.2.3"

src/agent_trace/hooks.py

@@ -289,9 +289,10 @@ def handle_post_tool(input_data: dict, failed: bool = False) -> None:
 
     if failed:
         event_type = EventType.ERROR
+        error_msg = str(tool_output)[:500] if tool_output else "tool call failed"
         event_data = {
             "tool_name": tool_name,
-            "error": str(tool_output)[:500],
+            "error": error_msg,
         }
     else:
         event_type = EventType.TOOL_RESULT

src/agent_trace/replay.py

@@ -85,6 +85,8 @@ def _format_duration(ms: float | None) -> str:
 def _strip_markdown(text: str) -> str:
     """Remove markdown formatting for terminal display."""
     import re
+    # Code blocks (fenced)
+    text = re.sub(r'```[\s\S]*?```', '', text)
     # Bold and italic
     text = re.sub(r'\*\*(.+?)\*\*', r'\1', text)
     text = re.sub(r'\*(.+?)\*', r'\1', text)
@@ -96,9 +98,16 @@ def _strip_markdown(text: str) -> str:
     text = re.sub(r'^#{1,6}\s+', '', text, flags=re.MULTILINE)
     # Links [text](url) -> text
     text = re.sub(r'\[(.+?)\]\(.+?\)', r'\1', text)
-    # Collapse multiple newlines
+    # Markdown tables: strip separator rows and pipe formatting
+    text = re.sub(r'^\|?[-:| ]+\|[-:| ]+\|?$', '', text, flags=re.MULTILINE)
+    text = re.sub(r'^\|(.+)\|$', lambda m: m.group(1).replace('|', ', ').strip(), text, flags=re.MULTILINE)
+    # List markers
+    text = re.sub(r'^[\s]*[-*+]\s+', '', text, flags=re.MULTILINE)
+    text = re.sub(r'^[\s]*\d+\.\s+', '', text, flags=re.MULTILINE)
+    # Collapse multiple spaces and newlines
     text = re.sub(r'\n{2,}', ' ', text)
     text = text.replace('\n', ' ')
+    text = re.sub(r' {2,}', ' ', text)
     return text.strip()
 
 
@@ -234,13 +243,14 @@ def format_event(event: TraceEvent, base_ts: float | None = None) -> str:
         parts.append(f"{color}{C.BOLD}error{C.RESET}")
         if name:
             parts.append(f"{C.RED}{name}{C.RESET}")
+        if code:
+            parts.append(f"{C.DIM}(code: {code}){C.RESET}")
         if msg:
-            msg_preview = str(msg)[:120]
-            if len(str(msg)) > 120:
+            msg = _strip_markdown(str(msg))
+            msg_preview = msg[:150]
+            if len(msg) > 150:
                 msg_preview += "..."
             parts.append(f"\n{C.GRAY}{'':>14}  {C.RED}{msg_preview}{C.RESET}")
-        if code:
-            parts.append(f"{C.DIM}(code: {code}){C.RESET}")
 
     elif event.event_type == EventType.SESSION_START:
         cmd = event.data.get("command", [])

tests/test_replay.py

@@ -37,6 +37,38 @@ def test_multiline_collapsed(self):
     def test_plain_text_unchanged(self):
         self.assertEqual(_strip_markdown("hello world"), "hello world")
 
+    def test_table_stripped(self):
+        table = "| File | Tests |\n|---|---|\n| test_a.py | 7 |\n| test_b.py | 25 |"
+        result = _strip_markdown(table)
+        self.assertNotIn("|---|", result)
+        self.assertIn("test_a.py", result)
+        self.assertIn("7", result)
+
+    def test_table_separator_removed(self):
+        result = _strip_markdown("|---|---|")
+        self.assertEqual(result, "")
+
+    def test_code_block_removed(self):
+        result = _strip_markdown("before\n```python\nprint('hi')\n```\nafter")
+        self.assertNotIn("print", result)
+        self.assertIn("before", result)
+        self.assertIn("after", result)
+
+    def test_list_markers_stripped(self):
+        result = _strip_markdown("- item one\n- item two\n* item three")
+        self.assertIn("item one", result)
+        self.assertNotIn("- ", result)
+        self.assertNotIn("* ", result)
+
+    def test_numbered_list_stripped(self):
+        result = _strip_markdown("1. first\n2. second")
+        self.assertIn("first", result)
+        self.assertNotIn("1.", result)
+
+    def test_multiple_spaces_collapsed(self):
+        result = _strip_markdown("hello    world")
+        self.assertEqual(result, "hello world")
+
 
 class TestToolCallDetail(unittest.TestCase):
     def test_bash_command(self):