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---
created: 2026-09-15 14:38
modified: 2026-09-15 14:38
type: note
tags: []
aliases: []
---
# [[Obsidian Vault Corodination System]]
You’re describing a **vault coordination system**: a structured layer that understands the vault, applies organization rules, and exposes the same capabilities to a UI, APIs, and AI agents.
The key design decision is:
> A note should have one canonical identity, but it may belong to many areas, projects, subjects, and indexes.
That avoids duplicating notes merely because they appear in multiple parts of your system.
---
# 1. Recommended conceptual model
Treat the vault as having three layers:
## A. Canonical content
These are the actual notes:
- `Vorta.md`
- `Network Topology.md`
- `Garage Backup.md`
- `AI Resume.md`
- `Offsite S3 Backup.md`
Each note has:
- A stable ID
- A title
- A type
- Content
- Frontmatter/properties
- Links to other notes
- Optional files and attachments
The canonical note should normally exist only once.
## B. Classification and relationships
A note can have multiple relationships.
For example:
```text
Vorta
├── belongs to: Tools / Software / Backup
├── supports: Garage Backup
├── supports: Offsite S3 Backup
├── related to: Backup Strategy
├── used by: Home Lab
└── documented in: System Tools
```
This is more flexible than forcing every note into one folder.
Useful relationship types include:
- `member_of`
- `supports`
- `depends_on`
- `related_to`
- `part_of`
- `used_by`
- `documents`
- `replaces`
- `stored_on`
- `backup_of`
## C. Navigation notes
These are Obsidian notes that provide human-friendly organization:
- `TABLE OF CONTENTS.md`
- `PROJECTS.md`
- `AREAS.md`
- `PERSONAL FAMILY.md`
- `TOOLS SOFTWARE WEBUI.md`
- `DEV OPS.md`
They can contain links to canonical notes.
For example:
```markdown
# Tools / Software / Web UI
- [[Obsidian]]
- [[Grafana]]
- [[Vorta]]
- [[Backup Dashboard]]
```
This means a note can appear in several navigation notes without being copied.
---
# 2. Hierarchy versus classification
Your example exposes an important distinction.
You may want:
```text
PROJECTS
└── Tools / Software / Web UI
```
But you may also want:
```text
AREAS
└── Dev Ops
└── Vorta
```
This is not really a single hierarchy. It is a **multi-dimensional classification system**.
A better model would allow:
```yaml
---
type: tool
title: Vorta
status: active
classifications:
- tools/software/backup
- tools/software/web-ui
- areas/dev-ops
related_projects:
- garage-backup
- offsite-s3-backup
---
```
You could represent this using:
1. Frontmatter properties
2. Wiki links
3. Database relationships
4. Generated index notes
The database can store these relationships in a normalized form, while Obsidian displays them as links.
---
# 3. Suggested object types
You do not need to start with dozens of types. A small set should cover most of your needs.
## Core types
### Area
An ongoing responsibility or domain.
Examples:
- Dev Ops
- Home Lab
- Personal Family
- Finance
- Health
- Household
Areas do not have a defined completion date.
### Project
A result with a desired outcome.
Examples:
- AI Resume
- Garage Backup
- Migrate Home Lab
- Build Backup Dashboard
Projects can have:
- Status
- Owner
- Start date
- Target date
- Tasks
- Related areas
- Related tools
### Tool
A piece of software, hardware, service, or utility.
Examples:
- Vorta
- Obsidian
- Grafana
- S3
- Proxmox
- Backup scripts
### System
A larger operational system.
Examples:
- Home Lab
- Backup System
- Network Infrastructure
- Media System
### Resource or Subject
A topic, concept, or collection of reference information.
Examples:
- Network Topology
- Hard Drives
- Linux
- Obsidian
- S3 Storage
### Asset
A physical or logical thing that needs tracking.
Examples:
- NAS
- Server
- Hard drive
- Router
- Garage storage device
- Cloud bucket
### Index or Collection
A navigation or overview note.
Examples:
- Table of Contents
- Projects
- Areas
- System Tools
- Web UI Tools
These are not necessarily “content” themselves. They are curated views over other objects.
---
# 4. The database should be an index, not necessarily the source of truth
For an Obsidian-centered system, I would recommend:
> Markdown files remain the source of truth. The database is a searchable, relational index and coordination layer.
That gives you the benefits of a database without making the vault dependent on it.
The database can store:
- File paths
- Note IDs
- Titles
- Types
- Frontmatter
- Tags
- Headings
- Outgoing links
- Backlinks
- Relationships
- Tasks
- Modification times
- Content hashes
- Extracted summaries
- Embeddings, if later needed
- Audit history
- Rule results
- Validation warnings
The tool can rescan or rebuild the database from the vault if necessary.
## Example conceptual schema
```text
notes
-----
id
path
title
type
status
created_at
modified_at
content_hash
properties
----------
note_id
key
value
relationships
-------------
source_note_id
relationship_type
target_note_id
tags
----
note_id
tag
headings
--------
note_id
heading
level
links
-----
source_note_id
target_note_id
link_text
tasks
-----
note_id
task_text
status
due_date
```
This structure gives the tool a broad understanding of the vault without reading every full document on every request.
---
# 5. SQLite, DuckDB, or PostgreSQL?
## SQLite — best initial choice
SQLite is probably the best fit for your first version.
Advantages:
- Local and simple
- No database server to operate
- Excellent for CRUD
- Good indexing and full-text search
- Supports transactions
- Easy to back up
- Works well with a single local application
- Suitable for thousands or tens of thousands of notes
- Easy to embed in a desktop or local web application
SQLite can handle:
- Note metadata
- Relationships
- Search indexes
- Rules
- Audit records
- Tasks
- Graph data
- Full-text search using FTS5
For your use case, the database is likely not going to be too large. The vault content may be large, but the metadata and indexes are still very manageable.
## DuckDB — excellent for analysis, less ideal as the main application database
DuckDB is particularly good for:
- Reporting
- Large analytical queries
- Activity analysis
- Statistics
- Historical data
- Exporting data to Parquet
- Exploring vault structure
Examples:
- Which areas have not been updated recently?
- Which projects have the most linked notes?
- Which tools have no documentation?
- Which systems have no backup relationship?
- How many notes changed each month?
However, DuckDB is not my first choice for the primary CRUD coordination database. SQLite has a more natural role as an application database.
You could eventually use both:
```text
SQLite: operational application database
DuckDB: optional analytics/reporting database
```
But do not begin with both unless you already need analytical reporting.
## PostgreSQL — useful if the system grows into a shared service
PostgreSQL becomes attractive when you need:
- Multiple concurrent users
- Multiple application services
- Remote access
- More complex permissions
- Many external integrations
- Large-scale event history
- Vector search extensions
- Background workers and queues
For a local, single-user home-lab system, it may add operational overhead without giving you much benefit initially.
## Recommendation
Start with:
```text
Markdown vault: source of truth
SQLite: metadata, relationships, search, rules, audit
Optional later:
DuckDB: analytics
PostgreSQL: only if the system becomes a multi-service platform
```
---
# 6. How Graphify fits
Graphify should be treated primarily as a **visual exploration and discovery layer**, not as the system’s main database.
Its likely strengths are:
- Showing connections between notes
- Making clusters visible
- Revealing isolated notes
- Showing heavily connected notes
- Helping discover unexpected relationships
- Providing a visual way to navigate the vault
Your coordination tool can complement Graphify by maintaining explicit relationships such as:
```text
Vorta --supports--> Garage Backup
Vorta --supports--> Offsite S3 Backup
Garage Backup --uses--> S3
Garage Backup --protects--> Home Lab
```
Graphify can then visualize the links already present in the vault.
## Make relationships visible in Obsidian
The tool should write relationships into standard Obsidian-compatible formats:
### Wiki links
```markdown
## Related Systems
- Supports: [[Garage Backup]]
- Supports: [[Offsite S3 Backup]]
- Used by: [[Home Lab]]
```
### Frontmatter
```yaml
---
type: tool
supports:
- "[[Garage Backup]]"
- "[[Offsite S3 Backup]]"
used_by:
- "[[Home Lab]]"
---
```
### Dataview-style fields, if you use Dataview
```yaml
---
type: tool
area:
- "[[Dev Ops]]"
category:
- "[[Tools Software WebUI]]"
---
```
The exact format depends on the Obsidian plugins you use, but the principle is important:
> The relationships should remain understandable in ordinary Markdown, even if your custom tool is unavailable.
## Graphify should not be the only representation
A visual graph is useful, but it is not ideal for:
- Enforcing required fields
- Finding stale notes
- Applying classification rules
- Maintaining canonical identities
- Managing projects
- Generating indexes
- Auditing changes
Your tool can provide the structured intelligence, while Graphify provides visual exploration.
---
# 7. Rules and automatic placement
You want rules such as:
> If something is a software tool with a web interface, include it under Tools / Software / Web UI.
And:
> If it relates to operational maintenance, include it under Areas / Dev Ops.
These should be modeled as **classification rules**, not hardcoded folder logic.
## Example rule
```yaml
name: classify-web-tools
when:
type: tool
properties:
interface: web
then:
add_membership:
- tools/software/web-ui
```
Another:
```yaml
name: classify-devops-tools
when:
type: tool
tags:
includes: devops
OR:
relationships:
includes: operational-system
then:
add_membership:
- areas/dev-ops
```
A note can match multiple rules.
## Rule results should be explainable
The system should be able to say:
```text
Vorta appears under:
- Tools / Software / Backup
Reason: type = tool, category = backup
- Tools / Software / Web UI
Reason: interface = web
- Areas / Dev Ops
Reason: supports operational backup systems
```
This is particularly important when AI agents are creating or modifying notes.
## Manual overrides
Automatic rules should not remove a deliberate human classification without confirmation.
Use three categories:
- `automatic`
- `manual`
- `excluded`
For example:
```text
Vorta → Areas / Dev Ops
source: manual
```
or:
```text
Vorta → Personal / Miscellaneous
source: excluded
```
This lets the system learn your preferences without becoming unpredictable.
---
# 8. Generated indexes versus hand-maintained indexes
You have two reasonable options.
## Option A: Fully generated indexes
The tool regenerates:
```text
TOOLS SOFTWARE WEBUI.md
```
from database memberships.
Advantages:
- Always consistent
- No stale links
- Easy for agents
- Minimal manual work
Disadvantages:
- Manual additions may be overwritten
- Less room for commentary
- Generated files can feel rigid
## Option B: Hybrid indexes
The tool manages a marked section:
```markdown
# Tools / Software / Web UI
This collection contains tools with a browser-based interface.
<!-- BEGIN GENERATED CONTENT -->
- [[Obsidian]]
- [[Grafana]]
- [[Vorta]]
<!-- END GENERATED CONTENT -->
## Notes
Personal commentary goes here.
```
This is probably the best option.
The system controls the generated portion while preserving your explanation and notes.
---
# 9. CRUD design
The tool should expose CRUD at the level of meaningful vault objects, not just raw files.
## Create
Examples:
- Create a project from a template
- Add a new tool
- Add a machine
- Add a backup target
- Add a relationship
- Add an area
- Add a subject
The tool should ask or infer:
- Type
- Name
- Location
- Required properties
- Related objects
- Applicable rules
- Template
## Read
Useful read operations include:
- Get a note
- Search the vault
- Search by type
- Find all notes in an area
- Find all projects using a tool
- Find systems without backups
- Get a dependency tree
- Get a graph neighborhood
- Get recently changed notes
- Get stale or incomplete notes
## Update
Updates should be property-aware where possible.
For example:
```text
Update Vorta:
- Add membership: Areas / Dev Ops
- Add relationship: supports → Garage Backup
- Set status: active
- Add official URL
```
This is safer than asking an agent to rewrite the entire Markdown document.
## Delete
Deletion should be treated carefully:
1. Identify the note
2. Show inbound links
3. Check dependent relationships
4. Move to a trash/archive location
5. Record the operation
6. Optionally clean or preserve links
For important notes, “archive” is often safer than immediate deletion.
---
# 10. Broad vault understanding
The tool should maintain several levels of understanding.
## Level 1: Structural understanding
Fast and reliable:
- Files
- Paths
- Titles
- Types
- Properties
- Tags
- Links
- Headings
- Tasks
- Modification dates
## Level 2: Relational understanding
Derived from explicit links and rules:
- What supports what
- What belongs to which area
- What projects use a tool
- Which machines store which backups
- Which systems have dependencies
## Level 3: Semantic understanding
Optional AI-generated information:
- Short summary
- Key topics
- Important entities
- Suggested relationships
- Possible duplicate notes
- Missing documentation
- Confidence score
Do not rely only on Level 3. AI summaries can become stale or incorrect. Store them as derived metadata, and allow regeneration.
## Context retrieval for agents
Rather than giving an AI the whole vault, provide context in layers:
1. The requested note
2. Direct relationships
3. Parent areas and projects
4. Relevant index notes
5. Related notes selected by search
6. Optional semantic matches
For example, an agent asking about Vorta might receive:
```text
Canonical note: Vorta
Type: Tool
Memberships:
- Tools / Software / Backup
- Tools / Software / Web UI
- Areas / Dev Ops
Related:
- Garage Backup
- Offsite S3 Backup
- Home Lab
- Backup Strategy
```
This gives the agent a useful overview without loading the entire vault.
---
# 11. Suggested user interface
The interface could have the following sections.
## Dashboard
- Recently changed notes
- Unclassified notes
- Broken links
- Duplicate candidates
- Projects needing updates
- Systems without backups
- Notes with missing required fields
## Objects
Browse by type:
- Areas
- Projects
- Tools
- Systems
- Assets
- Subjects
- Indexes
## Classification editor
For each note:
```text
Vorta
Type:
[Tool]
Members:
[x] Tools / Software / Backup
[x] Tools / Software / Web UI
[x] Areas / Dev Ops
Relationships:
Supports:
[x] Garage Backup
[x] Offsite S3 Backup
Rules matched:
- Web interface tool
- Backup software
- Dev Ops operational tool
```
## Rule editor
Allow rules such as:
- If type is `tool`, require `status`
- If type is `asset`, require `location`
- If a project is active, require `next_action`
- If a backup system exists, require a retention policy
- If a tool is in Dev Ops, require an operational note
## Vault health
- Orphaned notes
- Missing metadata
- Invalid links
- Duplicate titles
- Empty project notes
- Unused tags
- Notes not classified into any area
- Notes classified into too many unrelated categories
---
# 12. Proposed initial architecture
A practical first version could be:
```text
Obsidian vault
↓
Vault scanner/parser
↓
SQLite index
↓
Classification and relationship engine
↓
UI + CRUD service
↓
Generated navigation notes
```
Later:
```text
AI agents / n8n / LangGraph / coding agents
↓
API or MCP layer
↓
Coordination service
```
The API and MCP should expose domain operations such as:
```text
create_project()
create_tool()
find_notes()
get_context()
add_relationship()
classify_note()
update_properties()
generate_index()
validate_vault()
archive_note()
```
This is preferable to exposing only low-level operations like:
```text
read_file()
write_file()
delete_file()
```
Low-level file operations can still exist, but domain-level operations make the system much safer and easier for AI agents to use.
---
# 13. Recommended first release
Keep the first version focused:
1. Scan the vault
2. Build a SQLite index
3. Parse frontmatter, tags, headings, and links
4. Define note types
5. Create and edit notes through templates
6. Store memberships and relationships
7. Generate or update index notes
8. Add full-text search
9. Add rule-based classification
10. Provide a basic UI
11. Add API/MCP after the domain model is stable
Do not begin with embeddings, complex graph databases, or a full autonomous AI organizer. First make the structured model reliable.
## Overall recommendation
Use:
- **Markdown and Obsidian links** for durable human-readable content
- **SQLite** for the operational index and relationship model
- **Rules** for repeatable classification
- **Generated/hybrid index notes** for navigation
- **Graphify** for visual exploration of the resulting links
- **API/MCP** as a domain-level interface for agents
- **Optional DuckDB later** for analytics and vault reporting
The central principle should be:
> One canonical note, many meaningful relationships, multiple generated views.copy