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@bencassie/flywheel
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Analyze all frontmatter fields used across the vault. Triggers on "frontmatter schema", "metadata fields", "what fields exist", "vault schema".

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SKILL.md

name vault-schema
description Analyze all frontmatter fields used across the vault. Triggers on "frontmatter schema", "metadata fields", "what fields exist", "vault schema".
auto_trigger true
trigger_keywords frontmatter schema, metadata fields, what fields exist, vault schema, field types, metadata structure, frontmatter overview, what metadata, yaml fields, property names, metadata overview, field list, what properties, note attributes
allowed-tools mcp__flywheel__get_frontmatter_schema

Frontmatter Schema Analyzer

Understand all metadata fields used across your vault.

When to Use

Invoke when you want to:

  • Discover what frontmatter fields exist in your vault
  • Understand field usage patterns (types, counts)
  • Plan metadata standardization
  • Get an overview of your vault's schema

Arguments

Argument Required Description
None - This skill requires no arguments

Process

1. Parse User Input

Recognize schema requests:

  • "what frontmatter fields exist in my vault?"
  • "show me the vault schema"
  • "what metadata fields do I use?"

2. Call MCP Tool

mcp__flywheel__get_frontmatter_schema()

3. Format Results

Frontmatter Schema Analysis
=================================================

Total Fields: 15 unique fields across vault

Field Overview:
-------------------------------------------------

  Field         Type(s)        Usage    Notes
  ──────────────────────────────────────────────
  type          string         234      Most common: "project", "note"
  status        string         156      Most common: "active", "done"
  date          string         342      Date format: YYYY-MM-DD
  tags          array          89       Avg 3 tags per note
  author        string         45       Usually "@username" format
  created       string         412      Timestamp or date
  modified      string         412      Timestamp or date
  aliases       array          67       For note title variations
  priority      number         23       Range: 1-5
  project       string         78       Links to project notes

-------------------------------------------------

Type Distribution:
  string:  10 fields (67%)
  array:   3 fields (20%)
  number:  1 field (7%)
  boolean: 1 field (7%)

Top 5 Most Used Fields:
  1. created (412 notes)
  2. modified (412 notes)
  3. date (342 notes)
  4. type (234 notes)
  5. status (156 notes)

=================================================

Use Cases

  • Schema discovery: "What metadata am I actually using?"
  • Standardization planning: "Which fields should I consolidate?"
  • Migration prep: "What fields need to be converted?"
  • Documentation: "What's the schema of my knowledge base?"

Integration

Works well with other skills:

  • vault-field-values: See all unique values for a specific field
  • vault-schema-check: Find inconsistencies in field types
  • vault-search: Query notes by frontmatter fields

Version: 1.0.0