Compendium hygiene audit — 2026-05-25

Scanned 892 markdown files under D:/Vault/Compendium (excluding .git/, scripts/, .claude/, node_modules/, Compendium-site/, .obsidian/). Found 12092 wikilink references — 12038 resolve via Obsidian semantics (99.6 percent), 38 dead and 16 ambiguous. Note that Obsidian wikilink resolution is path-flexible: a link like [[Engineering/foo]] resolves correctly even when the file lives at Engineering-and-Robotics/Engineering/foo.md, as long as the suffix is unique. Of the resolving links, 10251 use short-path form (works, but stylistically inconsistent with the full canonical path) and 133 resolve only via slug fallback (path prefix is wrong but slug is unique — these are worth fixing). Frontmatter tag scan extracted 2093 distinct tags across 5231 tag-occurrences, with 1 likely duplicate/variant groups flagged and 1696 tags appearing in exactly one note. Frontmatter sanity: 0 parse failures, 17 notes with no frontmatter at all, 27 missing title:, 17 missing created:, 27 missing tags:.

Helper script: System/scripts/audit-hygiene.py (stdlib only — rerun with python audit-hygiene.py to regenerate).

1. Wikilink audit

• Total wikilinks found: 12092
• Resolve via Obsidian semantics: 12038 (99.6 percent)
  • Exact-path resolves: 1654
  • Short-path resolves (link uses partial path; works in Obsidian): 10251
  • Slug-fallback resolves (path prefix is wrong but slug is unique): 133
• Dead links: 38
• Ambiguous links: 16

Status codes used below:

• ok — exact relative-path match.
• ok-shortpath — link uses a shortened path prefix (e.g. [[Engineering/foo]] instead of [[Engineering-and-Robotics/Engineering/foo]]); Obsidian resolves these fine, but you may want to canonicalise to full paths for portability.
• ok-slugfallback — the path is wrong but the bare slug matches exactly one file; Obsidian will still resolve, but the link is misleading.
• dead — target slug not found anywhere in the Compendium.
• dead-path-ambiguous — exact relative path missing, slug exists in multiple locations.
• ambiguous — bare [[slug]] resolves to more than one file.
• ambiguous-shortpath — short-path link suffix matches multiple files.
• empty — wikilink with no text.

1-pre. Short-path and slug-fallback resolves (informational — not dead)

These links work in Obsidian but use shortened or slug-only paths. Sorted by total per source.

Source	Short-path	Slug-fallback
Engineering-and-Robotics/Engineering/_learn_next.md	379	0
Math-and-Compute/Languages/_compare_test-frameworks.md	357	0
Math-and-Compute/Languages/_learn_next.md	299	1
Math-and-Compute/Languages/_compare_async-models.md	300	0
Math-and-Compute/Languages/_compare_error-handling.md	288	0
Math-and-Compute/Languages/_compare_orm-and-data-access.md	253	0
Math-and-Compute/Math/_learn_next.md	200	0
Math-and-Compute/Compute/_learn_next.md	174	0
Math-and-Compute/Languages/Tier3/_index.md	172	0
Math-and-Compute/Languages/_compare_memory_models.md	164	0
Math-and-Compute/Languages/_compare_metaprogramming.md	148	0
Math-and-Compute/Languages/_compare_concurrency.md	136	0
Society/Finance/_learn_next.md	131	0
Math-and-Compute/Languages/_compare_type_systems.md	130	0
Walkthroughs/design-6dof-cobot-arm.md	123	0
Math-and-Compute/Languages/_compare_build_tools.md	107	0
Walkthroughs/design-autonomous-mobile-robot.md	104	2
Engineering-and-Robotics/Engineering/_index.md	104	0
Math-and-Compute/Languages/_index.md	97	0
Sciences/MaterialsScience/materials-overview.md	92	0
Engineering-and-Robotics/Robotics/_index.md	62	0
Engineering-and-Robotics/Engineering/Tier3/_index.md	59	0
Walkthroughs/design-semiconductor-lithography-stepper.md	56	0
Math-and-Compute/Math/_compare_probability-frameworks.md	49	0
Math-and-Compute/Math/_index.md	48	0
Engineering-and-Robotics/Engineering/_compare_materials-selection-criteria.md	47	0
Walkthroughs/design-surgical-robot-wrist.md	45	0
Math-and-Compute/Compute/_index.md	43	0
Walkthroughs/design-ev-traction-inverter.md	41	0
Walkthroughs/design-utility-scale-solar-pv-plant.md	41	0
… and 599 more sources

1a. Most-referenced dead targets (aggregate)

These are the targets cited most often that have no file. Often a single never-created note explains many dead links across the vault.

Dead target	References	Likely intent
[[../Society/political-systems-and-governance]]	4	note likely planned but never written
[[../Sciences/biology-fundamentals]]	4	try singular ../Sciences/biology-fundamental
[[Languages/elm]]	4	unknown
[[Biology/photosynthesis-and-respiration]]	4	note likely planned but never written
[[../Math-and-Compute/artificial-intelligence-and-machine-learning]]	3	note likely planned but never written
[[../Sciences/physics-fundamentals]]	3	try singular ../Sciences/physics-fundamental
[[Languages/d]]	3	unknown
[[Compute/kernel-methods]]	3	try singular Compute/kernel-method
[[../../Law/Tier3/_index]]	1	unknown
[[../Linguistics/_index]]	1	unknown
[[../../Sciences/ClimateScience/_index]]	1	unknown
[[../../Society/Economics/_index]]	1	unknown
[[../../Society/Law/_index]]	1	unknown
[[../../Languages/_index]]	1	unknown
[[../../Math/_index]]	1	unknown
[[../../Engineering/Tier3/_index]]	1	unknown
[[../../Robotics/Tier3/_index]]	1	unknown
[[../../Music/Tier3/_index]]	1	unknown

1b. Dead links by source file

Showing the top 21 source files with the most dead links (out of 21 affected files). Per-source list capped at 15 unique dead links each.

Humanities/Philosophy/_index.md — 4 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../Society/political-systems-and-governance]]	dead	unknown — note likely never written
[[../Math-and-Compute/artificial-intelligence-and-machine-learning]]	dead	unknown — note likely never written
[[../Sciences/biology-fundamentals]]	dead	possibly singular form ../Sciences/biology-fundamental — verify
[[../Sciences/physics-fundamentals]]	dead	possibly singular form ../Sciences/physics-fundamental — verify

Math-and-Compute/Languages/_learn_next.md — 3 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[Languages/elm|Elm]]	dead	unknown — note likely never written
[[Languages/d|D]]	dead	unknown — note likely never written
… 1 more (deduped/truncated; rerun script for full list)

Math-and-Compute/Math/functional-analysis.md — 3 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[Compute/kernel-methods]]	dead	possibly singular form Compute/kernel-method — verify
… 2 more (deduped/truncated; rerun script for full list)

Humanities/History/_index.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../../Society/Economics/_index|Society / Economics]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
[[../../Society/Law/_index|Society / Law]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index

Humanities/Philosophy/epistemology.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../Math-and-Compute/artificial-intelligence-and-machine-learning]]	dead	unknown — note likely never written
[[../Society/political-systems-and-governance]]	dead	unknown — note likely never written

Humanities/Philosophy/ethics-and-moral-philosophy.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../Society/political-systems-and-governance]]	dead	unknown — note likely never written
[[../Sciences/biology-fundamentals]]	dead	possibly singular form ../Sciences/biology-fundamental — verify

Humanities/Philosophy/metaphysics-and-ontology.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../Sciences/physics-fundamentals]]	dead	possibly singular form ../Sciences/physics-fundamental — verify
[[../Society/political-systems-and-governance]]	dead	unknown — note likely never written

Humanities/Philosophy/philosophy-of-mind-and-language.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../Math-and-Compute/artificial-intelligence-and-machine-learning]]	dead	unknown — note likely never written
[[../Sciences/biology-fundamentals]]	dead	possibly singular form ../Sciences/biology-fundamental — verify

Humanities/Philosophy/philosophy-of-science.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../Sciences/physics-fundamentals]]	dead	possibly singular form ../Sciences/physics-fundamental — verify
[[../Sciences/biology-fundamentals]]	dead	possibly singular form ../Sciences/biology-fundamental — verify

Math-and-Compute/Languages/_compare_metaprogramming.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[Languages/d|D]]	dead	unknown — note likely never written
… 1 more (deduped/truncated; rerun script for full list)

Sciences/ClimateScience/carbon-cycle-and-greenhouse-gases.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[Biology/photosynthesis-and-respiration]]	dead	unknown — note likely never written
… 1 more (deduped/truncated; rerun script for full list)

Sciences/ClimateScience/climate-impacts-and-adaptation.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[Biology/photosynthesis-and-respiration]]	dead	unknown — note likely never written
… 1 more (deduped/truncated; rerun script for full list)

Society/Finance/Tier3/_index.md — 2 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../../Engineering/Tier3/_index|Engineering T3 index]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
[[../../Robotics/Tier3/_index|Robotics T3 index]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index

Arts-and-Energy/Music/Tier3/_index.md — 1 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../../Law/Tier3/_index|Law T3 index]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index

Humanities/Anthropology/_index.md — 1 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../Linguistics/_index|Linguistics]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index

Humanities/History/modern-history.md — 1 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../../Sciences/ClimateScience/_index|Sciences / Climate Science]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index

Humanities/Linguistics/_index.md — 1 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../../Languages/_index|Languages]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index

Math-and-Compute/Languages/_compare_error-handling.md — 1 dead

Wikilink (verbatim)	Status	Best guess / candidates
`[[Languages/elm\	Elm-like Roc]]`	dead

Math-and-Compute/Languages/_compare_type_systems.md — 1 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[Languages/elm|Elm]]	dead	unknown — note likely never written

Society/Finance/Tier3/derivatives-and-instruments-catalog.md — 1 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../../Math/_index|Math library]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index

Society/Law/Tier3/_index.md — 1 dead

Wikilink (verbatim)	Status	Best guess / candidates
[[../../Music/Tier3/_index|Music T3 index]]	dead-path-ambiguous	exists at: Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index

1c. Ambiguous bare-slug links

Source	Wikilink	Candidates
Arts-and-Energy/Music/Tier3/genre-tree-and-instrument-catalog.md	[[_index|Music T3 index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
Humanities/Anthropology/_index.md	[[Tier3/_index|Tier 3 index]]	Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/Tier3/_index; Sciences/MaterialsScience/Tier3/_index; Society/Finance/Tier3/_index; Society/Law/Tier3/_index
Humanities/History/_index.md	[[Tier3/_index|Tier 3 index]]	Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/Tier3/_index; Sciences/MaterialsScience/Tier3/_index; Society/Finance/Tier3/_index; Society/Law/Tier3/_index
Humanities/Linguistics/_index.md	[[Tier3/_index|Tier 3 index]]	Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/Tier3/_index; Sciences/MaterialsScience/Tier3/_index; Society/Finance/Tier3/_index; Society/Law/Tier3/_index
Humanities/Philosophy/_index.md	[[Tier3/_index|Tier 3 index]]	Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/Tier3/_index; Sciences/MaterialsScience/Tier3/_index; Society/Finance/Tier3/_index; Society/Law/Tier3/_index
Humanities/ReligiousStudies/_index.md	[[Tier3/_index|Tier 3 index]]	Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/Tier3/_index; Sciences/MaterialsScience/Tier3/_index; Society/Finance/Tier3/_index; Society/Law/Tier3/_index
Sciences/Biology/Tier3/model-organisms-and-sequencing-tech.md	[[_index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
Sciences/Chemistry/Tier3/reagent-and-reaction-catalog.md	[[_index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
Sciences/ClimateScience/ocean-biogeochemistry.md	[[_index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
Sciences/ClimateScience/paleoclimate.md	[[_index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
Society/Economics/microeconomics-foundations.md	[[_index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
Society/Finance/Tier3/derivatives-and-instruments-catalog.md	[[_index|Finance T3 index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
Society/Law/contracts-and-ip.md	[[_index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
Society/Law/immigration-and-international-law.md	[[_index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
Society/Law/Tier3/federal-statutes-and-court-system.md	[[_index|Law T3 index]]	Arts-and-Energy/EnergyMarkets/_index; Arts-and-Energy/Music/_index; Arts-and-Energy/Music/Tier3/_index; Engineering-and-Robotics/Engineering/_index; Engineering-and-Robotics/Engineering/Tier3/_index; Engineering-and-Robotics/Robotics/_index; Engineering-and-Robotics/Robotics/Tier3/_index; Humanities/Anthropology/_index; Humanities/Anthropology/Tier3/_index; Humanities/History/_index; Humanities/History/Tier3/_index; Humanities/Linguistics/_index; Humanities/Linguistics/Tier3/_index; Humanities/Philosophy/_index; Humanities/Philosophy/Tier3/_index; Humanities/ReligiousStudies/_index; Humanities/ReligiousStudies/Tier3/_index; Math-and-Compute/Compute/_index; Math-and-Compute/Compute/AWSBedrock/_index; Math-and-Compute/Compute/Claude/_index; Math-and-Compute/Compute/CloudflareWorkers/_index; Math-and-Compute/Compute/GoogleGemini/_index; Math-and-Compute/Compute/OpenAI/_index; Math-and-Compute/Compute/Tier3/_index; Math-and-Compute/Compute/Vercel/_index; Math-and-Compute/Languages/_index; Math-and-Compute/Languages/Tier3/_index; Math-and-Compute/Math/_index; Math-and-Compute/Math/Tier3/_index; Sciences/Biology/_index; Sciences/Biology/Tier3/_index; Sciences/Chemistry/_index; Sciences/Chemistry/Tier3/_index; Sciences/ClimateScience/_index; Sciences/MaterialsScience/_index; Sciences/MaterialsScience/Tier3/_index; Society/Economics/_index; Society/Finance/_index; Society/Finance/Tier3/_index; Society/Law/_index; Society/Law/Tier3/_index; Walkthroughs/_index
System/agent-quickstart.md	[[README]]	README; Arts-and-Energy/README; Engineering-and-Robotics/README; hooks/README; Humanities/README; Math-and-Compute/README; Sciences/README; Society/README; System/claude-config/README

2. Tag normalization audit

Distinct tags: 2093. Total tag-occurrences: 5231.

2a. Top 100 tags by frequency

Tag	Notes
research	411
family-index	223
engineering-reference	164
language-reference	152
tier3	129
tier1	125
compute-reference	113
tier2	96
t2	72
robotics-reference	71
compute	68
ml-ai	52
walkthrough	51
math-reference	49
moc	31
system	28
integration	27
mechanical	26
synthesis	26
biology-reference	25
chemistry-reference	25
finance-reference	25
robotics	23
law-reference	22
t3	22
control	21
materials	21
climate-reference	20
electronics	20
materials-science-reference	20
engineering	19
claude	18
comparison	18
functional	18
music-reference	18
manufacturing	17
canonical-reference	16
cloud-native	15
economics-reference	15
electrical	15
energy-markets-reference	15
aerospace	13
energy	13
llm	13
probability	13
finance	12
optimization	12
structural	12
concept	11
cross-cutting	11
google-gemini	11
openai	11
thermal	11
fluid	10
philosophy-reference	10
statistics	10
history-reference	9
linguistics-reference	9
perception	9
religious-studies-reference	9
agents	8
aws-bedrock	8
cloudflare-workers	8
foundational	8
manipulation	8
materials-science	8
math	8
planning	8
anthropology-reference	7
databases	7
dynamic	7
industrial	7
law	7
machine-learning	7
observability	7
security	7
vercel	7
audit	6
biomedical	6
civil	6
embedded	6
gotchas	6
index	6
learning-path	6
linear-algebra	6
mobility	6
music	6
numerical	6
scripting	6
tricks	6
undocumented	6
actuators	5
ai-ml	5
api	5
automation	5
climate	5
compare	5
compiled	5
gc	5
infrastructure	5

Long tail: 1908 tags appearing in 2 or fewer notes each.

2b. Likely duplicate / variant groups

Each row groups tags that normalize to the same form. The suggested canonical is the most-used variant in the group, in kebab-case singular.

Group key	Variants (count)	Suggested canonical
grid	grid (1), grids (1)	grids

2c. Tags appearing in exactly one note

1696 tags. Many are likely typos or one-off thoughts; consider dropping or merging.

21-cfr-part-11  3d-scene  5axis-cnc-machining-center  5g  6dof-arm  6dof-pose
ACI318  AISC360  CFRP  ITS  LRFD  PPAs
RECs  SMR  VPP  a-star  abagliati  abaqus
abc-notation  ablation  abrahamic-traditions  abrupt-events  absorption  ac-analysis
acceleration  accelerator-magnets  accelerometer  accessibility-aria  accord-project  accounting
accounting-payments  ackermann  acord  acoustics  acoustics-noise-control  actions
actuarial  ada  adapt  adaptive-control  adcs  additive
additive-manufacturing-taxonomy  adhesives  adjacent-repos  admittance-control  adql  aerial
aerodynamics  aerosols  aerospace-defence  afp  agda  agent-building
agent-quickstart  agent-sdk  agentic  agentic-coding  agents-sdk  aggateway
agile  agri-bot  agricultural-machinery  agriculture-farming  ai  ai-compute
ai-ethics  ai-for-good  ai-gateway  ai-infrastructure  ai-regulation  ai-sdk
air-defense  ais  akoma-ntoso  alexa  algebraic-geometry  algorithms
alignment  alloys  alpha  aluminum-alloys  am  ammonia
amplifier  amr  amr-warehouse-robot-design  analytical-chemistry-methods  ancient  ancient-dna
android  ansible  ansys  antagonistic  antenna  anthropometry
anti-windup  antibodies  antipodal  antitrust  apple  applied
applied-ethics  arc  archimate  ardupilot  arguments  arinc
armax  arpabet  arx  as9100  asciimath  ashby
asme  asp  assembly  astrodynamics  astronomy-space  atmos-chem
atmosphere  atmospheric-chemistry  atmospheric-dynamics  attitude  attribution  audio-production
audio-production-mixing-mastering  auth-authz  automotive-onvehicle  autonomous-driving  autonomous-tractor  autonomy
autopilot  autosar  auv  av  aviation  axis
backend  backstepping  balance  banking  base-arm-coordination  base-isolation
bash  basic  batch  batch-api  battery-chemistries  bayesian-inference
bcf  beam-theory  bearings  bearings-taxonomy  behavior-cloning  behavior-trees
behavioral  behavioral-economics  behind-meter  bending  bibtex  bilateral
billing  bin-picking  binary-formats  bindings  bio-fileformats  biochemistry
biochemistry-foundations  biofuels  bioinstrumentation  biological-anthropology  biology-chemistry  biomechanics
biomimetic  biosensor  bipedal  bistable  blade-cooling  bldc
bldc-driver  blob  blocking  blueprint  bms  bolted
borrow-checked  botany  boundary-layer  bpmn  brain  brainfuck
brayton  brazing  bss  building-envelope  bulk-micromachining  business-cycles
c  c-transpile  cable-driven  caching  calculus  calendar
calendar-scheduling  calibration  cap-and-trade  capabilities  capacitive-skin  capacitor
capture-point  carbon-accounting  carbon-cycle  case-uco  casting  casting-processes
catala  catalysts  causal-inference  ccgt  ccsds  cdc
cdisc  cdpr  cedar  cell-biology  cell-lines  cell-molecular-biology
cement  centrifugal  ceramic  ceramics-taxonomy  certification  cfd
cfi  changelog  characterization  characterization-methods  characterization-techniques  charging
chatbot-intent-dsls  chatter  chef  chemical-engineering  circuit-analysis  circular-economy
citation-formats  citations  classical  cldf  cldr  cli
climate-carbon  climate-mitigation-and-adaptation  clojure  clos  cloudflare  clp
cmc  cmmn  cmudict  cnc  cni  cobie
cobol  cobot-arm-design  cobots  codec-and-dsp  codeql  codes
codeview  cohomology  combinatorial-optimization  combines  commodities  common-lisp
comparative-religion  compendium-hygiene  compiler-design  complex-analysis  compliant-mechanism  composites-taxonomy
composition  compressibility  comptime  computability  computational  computational-chemistry
computer-science  computer-use  concatenative  concentration  concurrency-primitives  conduction
config  config-management  conll-u  connection  connector-families  consensus-protocols
consistency  consolidation  constellation  constitutional-law  constraint  constraint-and-smt-input
construction  construction-bim  consumer-theory  container-orchestration  container-ship-propulsion-system  containers
containers-service-mesh  continuous-manufacturing  continuum  contracts  contracts-and-ip  control-algorithms
controllability  controlled-environment  convection  converse  converters  convex-optimization
copper-alloys  coq  cordex  coriolis  corporate-finance-and-markets  corporate-law
cost-optimization  couplings-taxonomy  courts  cpan  cpk  cpm
cpp  cpu-cache-performance  crd  crdts  cri  criminal-law
criminal-procedure  crispr  crs  cryo-em  cryogenic  cryosphere
crypto  crypto-tokenization  cryptography-fundamentals  cryptography-keys  crystal  crystallography-phase-diagrams
csaf  csharp  csi  csl  cubesat  cubical
cuda-triton-gpu-programming  cultural-anthropology  cybersec-deep  cybersecurity  cycles  d1
dairy  damping  data-access  data-privacy  data-race-free  data-science
database-internals  dataflow  daws-plugins  dc-analysis  dc-motor  dcsa
debug-info  decentralized  deep-rie  defense  defi  delphi
denominations  dependence  depth-camera  derivatives-and-quant-finance  desalination  development
developmental-biology  devops  devops-reference  dex-net  dexterity  dexterous-hand
dfam  dfxml  dgkf  dh-parameters

… and 1296 more singletons not listed.

2d. Tag hierarchy candidates

Tags that look like specialisations of broader tags (heuristic: tag B contains tag A as a substring or they co-occur often). The current convention is flat — recommendation below is informational, not action-required.

Broad tag	Narrow tag	Both used in N notes	Suggestion
compute	compute-reference	67	optional: compute/reference
engineering	engineering-reference	14	optional: engineering/reference
finance	finance-reference	11	optional: finance/reference
robotics	robotics-reference	11	optional: robotics/reference
law	law-reference	7	optional: law/reference
music	music-reference	5	optional: music/reference
biology	biology-reference	4	optional: biology/reference
chemistry	chemistry-reference	4	optional: chemistry/reference
climate	climate-reference	4	optional: climate/reference
math	math-reference	4	optional: math/reference
claude	claude-code	3	optional: claude/code
google	google-gemini	2	optional: google/gemini

3. Frontmatter sanity

• YAML parse failures: 0
• Notes with no frontmatter at all: 17
• Notes missing title:: 27
• Notes missing created: (count only): 17
• Notes missing tags:: 27

3a. Frontmatter parse failures

None.

3b. Notes with no frontmatter block

• README.md
• .github/PUBLISHING.md
• Arts-and-Energy/README.md
• Arts-and-Energy/EnergyMarkets/lng-trading-and-weather-derivatives.md
• Arts-and-Energy/Music/orchestration-and-audio-engineering.md
• Engineering-and-Robotics/README.md
• Humanities/README.md
• Math-and-Compute/README.md
• Sciences/README.md
• Society/README.md
• Society/Economics/public-and-health-economics.md
• Society/Finance/esg-investing-and-impact.md
• Society/Finance/structured-products-and-distressed-debt.md
• Society/Law/securities-regulation-and-ma-practice.md
• System/claude-config/AGENTS_INDEX.md
• System/claude-config/CLAUDE.md
• System/claude-config/README.md

3c. Notes missing title:

• README.md
• .github/PUBLISHING.md
• Arts-and-Energy/README.md
• Arts-and-Energy/EnergyMarkets/lng-trading-and-weather-derivatives.md
• Arts-and-Energy/Music/orchestration-and-audio-engineering.md
• Engineering-and-Robotics/README.md
• Humanities/README.md
• Humanities/Anthropology/Tier3/hominin-species-catalog.md
• Humanities/Anthropology/Tier3/_index.md
• Humanities/History/Tier3/dynasties-and-monarchies-catalog.md
• Humanities/History/Tier3/_index.md
• Humanities/Linguistics/Tier3/language-families-catalog.md
• Humanities/Linguistics/Tier3/_index.md
• Humanities/Philosophy/Tier3/philosopher-catalog.md
• Humanities/Philosophy/Tier3/_index.md
• Humanities/ReligiousStudies/Tier3/sacred-texts-catalog.md
• Humanities/ReligiousStudies/Tier3/_index.md
• Math-and-Compute/README.md
• Sciences/README.md
• Society/README.md
• Society/Economics/public-and-health-economics.md
• Society/Finance/esg-investing-and-impact.md
• Society/Finance/structured-products-and-distressed-debt.md
• Society/Law/securities-regulation-and-ma-practice.md
• System/claude-config/AGENTS_INDEX.md
• System/claude-config/CLAUDE.md
• System/claude-config/README.md

3d. Notes missing tags:

• README.md
• .github/PUBLISHING.md
• Arts-and-Energy/README.md
• Arts-and-Energy/EnergyMarkets/lng-trading-and-weather-derivatives.md
• Arts-and-Energy/Music/orchestration-and-audio-engineering.md
• Engineering-and-Robotics/README.md
• Humanities/README.md
• Humanities/Anthropology/Tier3/hominin-species-catalog.md
• Humanities/Anthropology/Tier3/_index.md
• Humanities/History/Tier3/dynasties-and-monarchies-catalog.md
• Humanities/History/Tier3/_index.md
• Humanities/Linguistics/Tier3/language-families-catalog.md
• Humanities/Linguistics/Tier3/_index.md
• Humanities/Philosophy/Tier3/philosopher-catalog.md
• Humanities/Philosophy/Tier3/_index.md
• Humanities/ReligiousStudies/Tier3/sacred-texts-catalog.md
• Humanities/ReligiousStudies/Tier3/_index.md
• Math-and-Compute/README.md
• Sciences/README.md
• Society/README.md
• Society/Economics/public-and-health-economics.md
• Society/Finance/esg-investing-and-impact.md
• Society/Finance/structured-products-and-distressed-debt.md
• Society/Law/securities-regulation-and-ma-practice.md
• System/claude-config/AGENTS_INDEX.md
• System/claude-config/CLAUDE.md
• System/claude-config/README.md

Recommended next actions

Top 5 fixes, ordered by impact-per-effort:

1. [multi-file sweep] Normalize the highest-volume tag-variant group: grid, grids → grids. Replace in each note’s frontmatter tags: list.
2. [create missing notes OR remove placeholder links] Decide on the ../* cluster: 14 distinct dead targets under that prefix (top in cluster: [[../Society/political-systems-and-governance]] referenced 4 times). Either author the missing notes or replace the links with plain text.
3. [single-file edit] Audit Humanities/Philosophy/_index.md — 4 dead links inside (likely a comparison/reference page with stale targets). See section 1b.
4. [multi-file sweep] Cull or merge the 1696 singleton tags — most are typos or one-off labels that dilute the tag space. Easiest first pass: spot-check the list in section 2c and replace obvious typos.
5. [multi-file sweep] Backfill frontmatter on the 17 notes with no --- block (mostly READMEs and Tier3 _index.md files) and the 27 notes missing a title: field. See sections 3b-3d.

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Generated by System/scripts/audit-hygiene.py on 2026-05-25.