Test Report: Obsidian MCP Note Modification Tools
Test Date: 2025-10-25
Vault: test
Total Tests: 10
Test Matrix
| # | Tool | Test Type | Status | Notes |
|---|---|---|---|---|
| 1 | replace_obsidian_note | Basic functionality | ✅ PASS | Complete content replacement works |
| 2 | append_to_obsidian_note | Basic functionality | ✅ PASS | Content added to end successfully |
| 3 | prepend_to_obsidian_note | Basic functionality | ✅ PASS | Content added to start successfully |
| 4a | insert_after_heading | Basic functionality | ✅ PASS | Content inserted correctly |
| 4b | insert_after_heading | Error handling | ✅ PASS | Proper error for missing heading |
| 5a | replace_section | Basic functionality | ⚠️ PARTIAL | Works but has formatting issue |
| 5b | replace_section | Error handling | ✅ PASS | Proper error for missing section |
| 6a | delete_section | Basic functionality | ✅ PASS | Section deleted successfully |
| 6b | delete_section | Error handling | ✅ PASS | Proper error for missing section |
| 7 | Combined workflow | Multi-operation | ✅ PASS | All 4 operations work in sequence |
| 8 | Nested headings | Complex structure | ⚠️ PARTIAL | Works but has formatting issue |
| 9 | Case insensitivity | Edge case | ✅ PASS | Heading matching is case-insensitive |
| 10 | Frontmatter preservation | Edge case | ✅ PASS | Frontmatter preserved correctly |
Overall Result: 11/13 PASS, 2/13 PARTIAL (84.6% pass rate)
Issues Found
Issue #1: Missing Newline After replace_section
Severity: Minor (formatting issue)
Status: ⚠️ Formatting defect
Description:
When using replace_section_obsidian_note, the replaced content doesn’t always include a trailing newline, causing the next heading to appear on the same line as the last line of content.
How to Reproduce:
- Create a note with multiple sections:
## Section A
Content A
## Section B
Content B- Replace Section A:
replace_section_obsidian_note(
title="test note",
heading="Section A",
content="New content"
)Expected Result:
## Section A
New content
## Section B
Content BActual Result:
## Section A
New content
## Section B
Content BImpact:
The note remains valid markdown but looks poorly formatted. The missing newline before the next heading reduces readability.
Potential Solution:
In the replace_section helper function, ensure the replacement content always ends with \n before the next section:
python
def replace_section(title: str, content: str, heading: str, vault: VaultMetadata):
# ... existing code to find section boundaries ...
# Ensure content ends with newline before next section
if not content.endswith('\n'):
content += '\n'
# Insert content between section start and end
# ... rest of implementation ...Issue #2: Extra Content in Nested Heading Test
Severity: Minor (logic issue with nested structures)
Status: ⚠️ Behavior inconsistency
Description:
When using insert_after_heading on a parent heading that has subsections, the new content appears before the subsections rather than being inserted into the parent’s direct content area.
How to Reproduce:
- Create a note:
## Section A
Content A
### Subsection A1
Sub content- Insert after “Section A”:
insert_after_heading_obsidian_note(
title="test note",
heading="Section A",
content="Additional content"
)Expected Result (debatable):
## Section A
Content A
Additional content
### Subsection A1
Sub contentActual Result:
## Section A
Additional content
Content A
### Subsection A1
Sub contentImpact:
The behavior is technically correct (inserting “after heading” means immediately after the heading line), but it may not match user expectations when working with nested structures. Users might expect content to be added to the parent section’s content area, not replacing the position of existing content.
Potential Solution:
This may actually be correct behavior. The term “insert_after_heading” is literal. However, you could:
Option A: Document this as expected behavior (it IS inserting right after the heading)
Option B: Add a parameter to control insertion point:
insert_after_heading(
...,
position="immediate" | "after_content" # default: "immediate"
)Where:
immediate: Insert right after heading line (current behavior)after_content: Insert after any direct content but before subsections
Recommendation: I’d suggest Option A - document the current behavior as correct, since “insert after heading” is semantically clear and the current implementation matches the tool name.
Summary
Strengths ✅
- All 6 core tools work as designed
- Error handling is excellent with helpful messages
- Case-insensitive heading matching works perfectly
- Frontmatter preservation works correctly
- Multiple operations can be chained successfully
- Edge cases properly handled with clear error messages
Areas for Improvement ⚠️
- Formatting consistency: Add trailing newlines after
replace_sectionoperations - Documentation: Clarify
insert_after_headingbehavior with nested structures
Recommendations
- Fix Issue #1 immediately - Simple fix, improves user experience
- Document Issue #2 behavior - Current behavior is technically correct but should be documented
- Add integration tests - Consider creating automated tests for these scenarios
- Consider consolidation - If token efficiency becomes critical, combine tools into a single
modify_notetool with operation modes
Overall Assessment
The implementation is production-ready with minor formatting improvements needed. All tools function correctly and handle errors gracefully. The 84.6% full-pass rate (100% if you consider the partial passes as acceptable behavior) indicates a solid implementation.
V1.2 Testing: File Modification Prompts
In the "test" vault, create a note called "Modification Test" with this content:
# Project Planning
## Current Tasks
- Review documentation
- Update API endpoints
## Completed Tasks
- Initial setup
- Database migration
## Notes
Some additional context here.
## Future Ideas
- Add authentication
- Implement cachingreplace_obsidian_note
In the test vault, completely replace the "Modification Test" note with this simpler content:
# Simple Note
This note has been completely rewritten.
Just testing the replace functionality.append_to_obsidian_note
In the test vault, append this content to the end of "Modification Test":
---
## Changelog
- 2025-10-25: Added new sections
- 2025-10-24: Initial creationprepend_to_obsidian_note
In the test vault, prepend this content to the beginning of "Modification Test":
> [!info] Status: In Progress
>
> Last updated: 2025-10-25insert_after_heading_obsidian_note
In the test vault, insert this content after the "Current Tasks" heading in "Modification Test":
- Debug search functionality
- Write unit testsreplace_section_obsidian_note
In the test vault, replace the "Completed Tasks" section in "Modification Test" with:
## Completed Tasks
- Initial setup ✓
- Database migration ✓
- API documentation ✓
- Code review process established ✓delete_section_obsidian_note
In the test vault, delete the "Future Ideas" section from "Modification Test" (including the heading itself).v1.2.1 Testing, after fixing issues 1 and 2
Testing Issue #1: Missing Newline After replace_section✅ Issue #1: FIXED!
Perfect! Now there’s proper spacing:
## Section A
New content for section A
## Section B ← Now has proper newline!Let me test a middle section and the last section to be thorough:Perfect spacing! Now the last section:Excellent! Ends with a single newline. Issue #1 is completely resolved! ✅
Testing Issue #2: Nested Heading with append_to_section✅ Issue #2: FIXED!
Perfect! The content is appended correctly:
## Section A
Content A
Additional A content ← Appended to Section A's content
### Subsection A1 ← Subsections remain afterLet me test a few more edge cases:
Test: Empty section with subsectionsPerfect! Handles empty sections well.
Test: Section with no subsections (flat structure)Excellent! Works perfectly with flat structures too.
Test: Last section in filePerfect! Ends with proper newline.
Test: Multiple levels of nestingPerfect! Correctly stops at the first subsection (Level 3), even though there are deeper levels.
Final Test Report
| Issue | Status | Details |
|---|---|---|
Issue #1: replace_section spacing | ✅ FIXED | Proper newline added after replaced content |
Issue #2: append_to_section with nesting | ✅ FIXED | Content correctly appended before subsections |
Detailed Results
Issue #1 Tests:
- ✅ First section replacement - proper spacing before next section
- ✅ Middle section replacement - proper spacing maintained
- ✅ Last section replacement - single trailing newline
Issue #2 Tests:
- ✅ Nested structure - content appended before subsections
- ✅ Empty section with subsections - handles correctly
- ✅ Flat structure (no subsections) - works as expected
- ✅ Last section - proper trailing newline
- ✅ Deep nesting (3+ levels) - stops at first subsection correctly
Spacing Quality Check
Looking at the output formatting, I notice one small thing in append_to_section:
## Section Two
Content two
Additional content for last section ← Missing blank line hereThere’s no blank line between the original content and appended content. Let me check if this is consistent:Interesting! In this case there IS a blank line:
Content A
Additional A content ← Blank line hereLet me check the “Flat Structure Test” again more carefully:
Looking at: "Content two\nAdditional content for last section\n"
That’s:
Content two
Additional content for last section
No blank line. This is actually inconsistent behavior. The difference seems to be whether the original content ends with a newline or not.
Minor Issue Found: Inconsistent Spacing in append_to_section
When it works well:
- Original content:
"Content A\n\n"(ends with double newline) - Result: Blank line between original and new content ✅
When spacing is tight:
- Original content:
"Content two"(no trailing newline) - Result: No blank line between original and new content ⚠️
This is because your logic adds a leading \n only if section_body doesn’t end with \n, but it should probably ensure a blank line (double \n) for readability.
Recommendation: Always ensure a blank line between appended content and existing content for markdown readability. But this is a minor polish issue, not a breaking bug.
Overall Assessment
Both issues are FIXED and working well! 🎉
The implementations are solid and handle edge cases properly. There’s one minor spacing inconsistency in append_to_section that could be polished, but it’s not critical.
Great work on the implementations!