r007b34r obsidian-mcp
Constraints
- NO write without fresh read first
- NO completion claims without readback verification
- EVERY changed line must trace to user request
- This skill owns vault operations ONLY; workflow decisions belong to companion skills
Host Constraints (version-locked — re-verify on upgrade)
These are based on obsidian-mcp-server@3.1.5. They may be stale.
To re-verify: call the forbidden API with a trivial test payload. If it returns -32602, constraint holds. If it succeeds, update this table and remove the ban.
| Operation | Status | Alternative |
|---|---|---|
obsidian_patch_note |
Forbidden (last verified: 2026-05-10) | obsidian_replace_in_note |
obsidian_append_to_note |
Forbidden (last verified: 2026-05-10) | obsidian_replace_in_note or obsidian_write_note overwrite:false for new files |
obsidian_write_note overwrite:true |
Forbidden by default | Surgical replace for existing files |
obsidian_delete_note |
Requires user confirmation | List path + risk first |
If you suspect a constraint is stale, test it. A successful call means the ban should be lifted.
Tool Selection
| Goal | Tool |
|---|---|
| Browse structure | obsidian_list_notes (depth 2-4) |
| Search | obsidian_search_notes |
| Read before edit | obsidian_get_note format:"document-map" then content/full |
| Create note | obsidian_write_note overwrite:false → readback |
| Edit existing | obsidian_replace_in_note → readback |
| Frontmatter | obsidian_manage_frontmatter |
| Tags | obsidian_manage_tags |
When selecting tools, read references/examples.md for operation patterns.
Workflow
- Locate: identify targets, read before writing
- Plan: minimum change only; report unrelated issues, don't fix them
- Write: use appropriate tool from table above
- Verify: readback every write; compare actual vs expected
When formatting completion reports, read references/templates.md.
Error Recovery
| Error | Response |
|---|---|
-32602 schema error |
Stop using that operation; switch to alternative |
note_missing |
Search for candidates; ask user |
file_exists |
Read existing; use surgical replace |
| 3 repeated failures | Stop and report |
Trigger Boundary
Use when: any vault read/write/search/tag/edit/verify operation.
Do NOT use for: triage decisions, synthesis, relationship analysis, health diagnosis, promotion decisions — those belong to companion skills.
Boundaries
- Owns: vault CRUD, frontmatter, tags, search, verification
- Delegates to: all 6 workflow skills for decisions
- Never absorbs: workflow decisions, knowledge interpretation
Continuations
| Condition | Next |
|---|---|
| Operation complete | Return to calling workflow skill |
| Repeated MCP failures | vault-health-feedback |
| 3 failures on same op | Escalate to human |
Gotchas
Gotcha 1: Using forbidden APIs "because they look right" Current host fails with -32602 regardless of intent. Use alternatives. But if you suspect the bug is fixed, test it first.
Gotcha 2: Trusting section reads as verification
format:"section" has schema issues on long content. Verify with content/full.
Gotcha 3: Making workflow decisions This skill executes operations, not decides what to do. Defer to companion skills.