docs: add scope summary document

Created SCOPE.md to clearly document project scope changes and
provide a single source of truth for what's in/out of scope.

Contents:
- Current scope (US1-US3 with tool lists)
- Removed scope (US4-US5 with rationale)
- Impact summary (before/after comparison)
- Implementation status table
- Next steps roadmap

Benefits:
- Clear reference for scope discussions
- Tracks removed features for potential future work
- Documents decision rationale
- Provides implementation progress snapshot

File: specs/001-obsidian-mcp-bundle/SCOPE.md

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

specs/001-obsidian-mcp-bundle/SCOPE.md

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+# Project Scope: Obsidian MCP Bundle
+
+**Last Updated**: 2026-03-22  
+**Status**: Active Development
+
+## Current Scope (3 User Stories)
+
+### ✅ User Story 1 - File Operations (P1) - COMPLETE
+**Status**: Implemented (9 tools, 17 tasks complete)
+
+Tools:
+- obsidian_create_note
+- obsidian_read_note  
+- obsidian_append_to_note
+- obsidian_prepend_to_note
+- obsidian_delete_note
+- obsidian_move_note
+- obsidian_rename_note
+- obsidian_duplicate_note
+- obsidian_open_note
+
+### ✅ User Story 2 - Search & Discovery (P2) - COMPLETE
+**Status**: Implemented (11 tools, 18 tasks complete)
+
+Tools:
+- obsidian_search
+- obsidian_list_backlinks
+- obsidian_list_links
+- obsidian_list_unresolved_links
+- obsidian_list_tags
+- obsidian_list_tag_counts
+- obsidian_list_aliases
+- obsidian_list_alias_counts
+- obsidian_list_properties
+- obsidian_list_property_counts
+- obsidian_get_property_values
+
+### 🚧 User Story 3 - Task & Property Management (P3) - PENDING
+**Status**: Not started (0/18 tasks complete)
+
+Planned Tools:
+- Task operations (list, toggle, create, mark done/todo)
+- Property management (read, set, remove)
+- Frontmatter manipulation
+
+## Removed Scope
+
+### ❌ User Story 4 - Vault Navigation (P4) - REMOVED
+**Reason**: Non-essential utility features; can be added later if needed
+
+Removed Tools (15 total):
+- File/folder listing (obsidian_list_files, obsidian_list_folders)
+- Vault statistics (obsidian_get_vault_info, obsidian_get_folder_info)
+- Navigation helpers (obsidian_list_recents, obsidian_get_outline)
+- Random note features (obsidian_random_note, obsidian_random_read)
+- System info (obsidian_get_version, obsidian_list_vaults)
+
+### ❌ User Story 5 - Advanced Features (P5) - REMOVED
+**Reason**: Power-user features; reduces complexity and maintenance burden
+
+Removed Tools (45 total):
+- **Daily Notes** (6 tools): open_daily_note, daily_append, daily_prepend, etc.
+- **Templates** (3 tools): list_templates, read_template, insert_template
+- **Bookmarks** (5 tools): create_bookmark, list_bookmarks, bookmark_file, etc.
+- **Plugins** (6 tools): list_plugins, enable_plugin, disable_plugin, etc.
+- **Themes** (6 tools): list_themes, get_active_theme, set_theme, etc.
+- **File History** (12 tools): list_versions, restore_version, sync operations
+- **Bases & Commands** (7 tools): list_bases, query_base, execute_command, etc.
+
+## Impact Summary
+
+### Before Removal
+- **5 User Stories** (US1-US5)
+- **95 Total Tools**
+- **165 Total Tasks**
+- **19 Functional Requirements** (FR-001 to FR-025, with gaps)
+
+### After Removal
+- **3 User Stories** (US1-US3)
+- **20 Total Tools** (20 implemented, 0 planned for US3)
+- **98 Total Tasks** (67 tasks removed, 40% reduction)
+- **19 Functional Requirements** (FR-001 to FR-019, renumbered sequentially)
+
+### Benefits
+- ✅ Clearer MVP scope (file ops + search + tasks)
+- ✅ Faster time to production-ready bundle
+- ✅ Reduced testing and maintenance surface area
+- ✅ Simpler documentation and user onboarding
+- ✅ Focus on 80% use cases rather than comprehensive coverage
+
+### Future Expansion
+If needed, US4 and US5 can be added later as separate releases:
+- **v2.0**: Add US4 (Vault Navigation) - 18 additional tasks
+- **v3.0**: Add US5 (Advanced Features) - 49 additional tasks
+
+## Current Implementation Status
+
+| Phase | Description | Status | Tasks |
+|-------|-------------|--------|-------|
+| Phase 1 | Setup | ✅ Complete | 12/12 |
+| Phase 2 | Foundational | ✅ Complete | 19/19 |
+| Phase 3 | User Story 1 (File Ops) | ✅ Complete | 17/17 |
+| Phase 4 | User Story 2 (Search) | ✅ Complete | 18/18 |
+| Phase 5 | User Story 3 (Tasks) | 🚧 Pending | 0/18 |
+| Phase 6 | Polish | 🚧 Partial | 4/14 |
+
+**Total Progress**: 70/98 tasks complete (71.4%)
+
+## Next Steps
+
+1. ✅ User Story 1 implementation - DONE
+2. ✅ User Story 2 implementation - DONE
+3. 🎯 User Story 3 implementation - NEXT
+4. Final polish and documentation
+5. Production release (v1.0)