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Tag Taxonomy — Controlled Vocabulary for Wiki Tags · ar9av | DecimalAI

documentationby ar9av

Tag Taxonomy — Controlled Vocabulary for Wiki Tags

ar9av/tag-taxonomy

Source ar9av/obsidian-wiki ↗License MIT

Enforce consistent tagging across the Obsidian wiki using a controlled vocabulary.

SkillScore74Maintained

Automatic

Knowledge Management pack

Last verified 9/23/2026

What it changes

Passed 13 of 17 test cases with the skill, and 6 of 17 without it.

Without skill35%

With skill74%

Checks it passed that the model alone missed

Leaves visibility tags untouched during alias normalization.
Prohibits direct manual editing of log.md, index.md, or hot.md.
Advises omitting the visibility tag entirely for public content.

and 15 more in the full report

11 fixed6 passed either way4 still failing2 broke

Pass-rate lift: +39 pp
Tokens: +79%
Agent turns: 0%
Response time: -49%

Model gemini-3.6-flashMeasured 9/23/2026v317 of 23 cases passed with skill · 17 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/ar9av-tag-taxonomy/SKILL.md https://app.decimal.ai/s/ar9av-tag-taxonomy/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add ar9av-tag-taxonomy, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/ar9av-tag-taxonomy/ and pins it in .decimal/skills.lock

decimalai skills add ar9av-tag-taxonomy

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/ar9av-tag-taxonomy/SKILL.md https://app.decimal.ai/s/ar9av-tag-taxonomy/SKILL.md

Raw file: /s/ar9av-tag-taxonomy/SKILL.md ↗ · machine-readable summary at /s/ar9av-tag-taxonomy.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 11

Prompt

When running post-write search index updates in a bash environment where `QMD_CLI` is set to `/usr/local/bin/custom-qmd`, which executable path should be invoked?

What was checked, without and with the skill
Checked	Without skill	With skill
Uses the command path defined in QMD_CLI when executing search index commands.	Missed	Passed

case-22 · gemini-3.6-flash · 9/23/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md210 linessingle file

Tag Taxonomy — Controlled Vocabulary for Wiki Tags

You are enforcing consistent tagging across the wiki by normalizing tags to a controlled vocabulary.

Before You Start

Resolve config — follow the Config Resolution Protocol in llm-wiki/SKILL.md (inline @name override → walk up CWD for .env → global config → prompt setup). This gives OBSIDIAN_VAULT_PATH
Read $OBSIDIAN_VAULT_PATH/_meta/taxonomy.md — this is the canonical tag list
Read index.md to understand the wiki's scope

The Taxonomy File

The canonical tag vocabulary lives at $OBSIDIAN_VAULT_PATH/_meta/taxonomy.md. It defines:

Canonical tags — the tags that should be used
Aliases — common alternatives that should be mapped to the canonical form
Rules — max 5 tags per page, lowercase/hyphenated, prefer broad over narrow
Migration guide — specific renames for known inconsistencies

Always read this file before tagging. It's the source of truth.

Reserved System Tags

visibility/ is a reserved tag group with special rules. These tags are not domain or type tags and are managed separately from the taxonomy vocabulary:

Tag	Purpose
`visibility/public`	Explicitly public — shown in all modes (same as no tag)
`visibility/internal`	Team-only — excluded in filtered query/export mode
`visibility/pii`	Sensitive data — excluded in filtered query/export mode

Rules for visibility/ tags:

They do not count toward the 5-tag limit
Only one visibility/ tag per page
Omit entirely when content is clearly public — no tag needed
Never add visibility/internal just because content is technical; use it only for genuinely team-restricted knowledge
When running a tag audit, report visibility/ tag usage separately — do not flag them as unknown or non-canonical

When normalizing tags, leave visibility/ tags untouched — they are not subject to alias mapping.

Track record

Benchmark

13 / 17

test cases passed, vs 6 / 17 without

Adoption

Users: 2
Times used: 38

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 9/23/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

ar9av / obsidian-wiki

.skills/tag-taxonomy/SKILL.md

View on GitHub ↗

License MITImported 10/8/2026Version v3

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Tag Taxonomy — Controlled Vocabulary for Wiki Tags

Before You Start

The Taxonomy File

Reserved System Tags

Track record

Benchmark

Adoption

SkillSafety

Source

Related skills