Imported from vanillaflava/llm-wiki-skills (wiki-lint/SKILL.md). Install upstream with npx skills add vanillaflava/llm-wiki-skills --skill wiki-lint. Copyright stays with the author.

Wiki Lint

Health-checks the wiki and produces a report. Never modifies wiki content.

Config Discovery

Every invocation starts here. Wiki root is the directory containing wiki-config.md. Skills derive it at runtime. Pages this skill lints are checked against the structure in wiki-schema.md - both files need to be present.

1. Identify scope: Determine your filesystem scope root - the top-level directory your filesystem tool can access.

2. Scope check - MANDATORY STOP: If scope is bare drive root (C:\, D:\, /), OS root, or user home (C:\Users\X, /home/X, /Users/X) → stop immediately. Do not search. Do not attempt to locate wiki-config.md. Go directly to step 6.

3. Scan <available_skills> for wiki-config. Note whether it's available - this shapes the recommendations below. The bundled references/setup-help.md is also available; read it if the user needs orientation or if you get stuck.

4. Locate and read wiki-config.md: Search recursively (first-match, max 5 levels). If found, read it (blacklist, index_excludes, ingested_folder, ingested_subdirs, log_format). If not found, skip to step 6.

5. Locate and read wiki-schema.md - mandatory check: In the same directory as wiki-config.md, verify wiki-schema.md exists and parses as YAML. Do not proceed to the Workflow below until you have a definite verdict (present / missing / malformed). Then:

   • Present and parses cleanly → read the schema (mandatory_fields, conditional_fields, enums) and proceed to the Workflow.

   • Missing → STOP. Do not proceed. Do not deploy. Response depends on whether wiki-config is in <available_skills> (from step 3):

     • wiki-config available: Output exactly this pattern - "Your wiki is missing wiki-schema.md. Run /wiki-config to deploy it and complete setup. I'll wait for that to be done before proceeding." End of turn. Do not offer bundled deployment; do not present alternatives. wiki-config's guided flow is the correct path when wiki-config is available.

     • wiki-config not available: Offer bundled fallback - "Your wiki is missing wiki-schema.md and the wiki-config skill is not installed. I can deploy a default from my bundled reference, but I'd recommend installing wiki-config for the guided setup. Deploy bundled default?" Wait for explicit confirmation. On OK, deploy from references/wiki-schema.md.

   • Malformed → STOP. Same structure:

     • wiki-config available: "Your wiki-schema.md is malformed. Run /wiki-config - it has a guided repair flow that preserves any customizations you've made. I'll wait." End of turn. Do not attempt repair or bundled overwrite.

     • wiki-config not available: Point to references/setup-help.md for manual repair guidance. If the user explicitly instructs a reset (not as an automatic fallback), warn that it overwrites any customizations, then deploy the default on explicit OK.

   The same two-branch structure applies if wiki-config.md itself was found malformed in step 4: wiki-config available → stop and recommend /wiki-config, end of turn; unavailable → guided manual repair via setup-help.md.

6. Config not found at all: Ask the user for their wiki root path, search there (bounded, max 5 levels). If still nothing, they don't have a wiki yet - follow the "Missing" branch above (recommend /wiki-config; offer bundled deployment if unavailable).

Capability Requirements

This skill requires filesystem read access (to scan all pages) and write access to archive/ (to file the lint report). If read access is unavailable, this skill cannot proceed.---

Workflow

Config Discovery has already loaded wiki-config.md and wiki-schema.md into context. Do not re-read them; proceed from here assuming both are available.

Step 1 - Build the page inventory

List all .md files in the vault recursively. Exclude paths in blacklist entirely; do not scan content inside them. Paths in index_excludes (raw\, archive\, ingested\) are excluded from being treated as wiki pages, but remain readable for link target validation: if a live wiki page links to a file in archive/ or ingested/, that link must resolve to a real file. Build the in-scope page set from files outside both blacklist and index_excludes. Also list all non-markdown files outside blacklisted paths, raw, archive, and ingested\ as potential orphaned binary assets.

Step 2 - Read index.md

Read index.md. Parse all wikilink references and file paths. Build a set of pages listed in index.md and their referenced paths.

Step 3 - Check for broken wikilinks

For each in-scope wiki page, extract all [[wikilinks]]. Attempt to resolve each to an actual file. If no matching file is found: flag as a broken wikilink with the page where found, the broken link text, and a suggested correction if obvious.

Also flag: any wiki page containing a link that points into raw/. Once wiki-ingest moves files to ingested/, raw/ source links will break. Flag these as future breakage warnings: "[[Page]] links to raw/: will break after ingestion. Update to ingested// once ingest is complete." These are not yet broken but are guaranteed to become so.

Step 4 - Check for orphan pages

For each page in the in-scope set, check:

• Is it listed in index.md?
• Is it referenced by any wikilink in any other in-scope page?

If neither: flag as an orphan page. New pages may be legitimate orphans; flag anyway, the human decides.

Step 5 - Check for stale index entries

For each page listed in index.md, check whether the referenced file exists. If not: flag as a stale index entry.

Step 5b - Check for over-length index entries

For each entry in index.md, measure the one-line description (the text between ]]: and the trailing `path`). If it exceeds 150 characters, flag as an over-length index entry (soft warning). index.md is read in full by every operational skill on each run, so long descriptions inflate that per-run cost. Suggested fix: tighten to 150 chars max.

Step 6 - Qualitative and structural passes

Conceptual issues: Read Overview.md and scan for obvious contradictions or staleness; claims that appear to contradict specific wiki pages, or pages that seem significantly out of date. Qualitative pass only, not a full content review.

Missing connections: Scan index.md descriptions for significant term overlap between page pairs that do not link to each other. Pages that share multiple key concepts in their index descriptions but have no mutual wikilinks are candidates for missing connections. Flag pairs with meaningful overlap; do not flag tenuous keyword coincidences. This is a lightweight heuristic pass; wiki-integrate handles the actual linking if the user agrees a connection is genuine.

Step 6b - Check for em-dash in page titles and filenames

Em-dashes (—) in page filenames and title: frontmatter fields are a persistent LLM output artifact. They break wikilinks (a link to [[Topic - Subtopic]] will not resolve a file named Topic — Subtopic.md), make pages unsearchable by their intended name, and violate the vault's em-dash convention.

For each in-scope page:

1. Check the filename for any — character
2. Read the title: frontmatter field and check for any — character

Flag each occurrence as an em-dash violation with the file path, where it was found (filename / title field), the offending string, and the suggested fix: replace — with - (space-hyphen-space).

Step 6c - Check for stale pages

For each in-scope page, check for the following conditions:

Missing date fields (error): If a page has neither date: nor updated: in its frontmatter, flag as a missing date fields error. Both fields absent suggests something went wrong at creation - the page was not written by a skill or the frontmatter is malformed.

Stale (soft warning): If a page has an updated: field and it is more than 90 days before today, flag as a stale page. Exempt from this check:

• status: artefact, status: snapshot, status: archived - frozen by definition
• page_type: reference - reference pages have mostly static content and infrequent updates are expected

Pages without an updated: field (but with date:) are silently skipped - absence of updated: is not an error.

Flag each stale page with: path, updated: date, days since last touch. Flag each missing-date-fields error with: path, which fields are absent.

Step 6d - Schema compliance check (provenance fields)

For each in-scope page, validate the four provenance fields (status:, description:, source:, reliability:). Two classes of finding:

Errors (hard flag):

• source: without reliability: - source: is present but reliability: is absent. These fields are coupled; one without the other is an internal inconsistency. Flag as a schema error with: path, field pair affected.
• Invalid status: value - status: is present but its value is not one of the valid enum values (active, stub, artefact, archived, snapshot). Flag as a schema error with: path, field, invalid value found, valid values.
• Invalid reliability: value - reliability: is present but its value is not one of (high, medium, low). Flag as a schema error with: path, field, invalid value found, valid values.
• Invalid page_type: value - page_type: is present but its value is not in the valid enum list from wiki-schema.md. Flag as a schema error with: path, field, invalid value found, and the valid values from the schema.

Soft warnings (informational):

• Skill-touched page missing status: or description: - page has updated: (meaning a skill has written to it post-3b) and page_type: is knowledge, research-note, or survey, but status: or description: is absent. Old pages without updated: are silently skipped - they predate 3b and will pick up fields on next touch. Flag as a missing provenance field with: path, which field(s) absent.
• source: present but no ## Sources section - source: in frontmatter implies an ingested origin; the body should have a ## Sources section for enrichment tracking. Absence is not a hard error but is worth flagging. Flag as a missing Sources section with: path.
• Skill-touched page missing page_type: - page has updated: (meaning a skill has written to it) but page_type: is absent. Pages without updated: are silently skipped - they predate the feature and will pick up the field on next touch. Flag as a missing page_type with: path.

Step 6e - Check log.md size

Count the ## [ entries in log.md. log.md is prepend-only and read in full by crystallize and lint on every run, so an oversized log is a standing context cost. If there are more than 150 entries, flag as a log oversized finding with the entry count and the threshold (150). lint never modifies log.md; the fix is to run wiki-crystallize, which offers to archive the oldest entries and keep the 50 most recent.

Step 7 - Check for orphaned binary assets

For each non-markdown file outside blacklisted paths, raw, archive, and ingested: search all in-scope pages for any reference to this filename. If none found: flag as an orphaned binary asset. A file contextually placed alongside related content (e.g. a PDF in a domain subfolder referenced by domain pages) is not an orphan; only flag files with no wiki references anywhere.

Step 7a - Check for orphaned sources in ingested/

Every file in ingested/ should have at least one wiki page that references it; via a Sources section in the page body containing the ingested/ path. A source with no wiki reference has been processed but left no trace in the knowledge graph.

For each file in ingested/ (all subdirs, including assets/):

1. Search all in-scope wiki pages for the file's relative path (e.g. ingested/documentation/foo.md). Check the full page content: ## Sources section body, changes: frontmatter field, or anywhere else a path reference might appear. Treat any match as a valid reference regardless of where it appears.
2. If no match found: flag as an orphaned source: "ingested/[subdir]/filename has no wiki page referencing it"

A source in ingested/assets/ with no reference is expected (it was unreadable at ingest time); flag it at lower severity as a note rather than a warning, so the user knows it exists and can re-attempt ingestion if capabilities have improved.

Step 8 - Write the lint report

Create [wiki-root]/archive/lint-YYYY-MM-DD.md:

---
title: Lint Report YYYY-MM-DD
date: YYYY-MM-DD
---

# Lint Report - YYYY-MM-DD

## Summary
- Broken wikilinks: N
- Future breakage warnings (raw/ links): N
- Orphan pages: N
- Stale index entries: N
- Over-length index entries: N
- Missing connections (candidates): N
- Em-dash violations (titles/filenames): N
- Missing date fields (errors): N
- Stale pages (updated: > 90 days): N
- Schema errors (invalid enum values, missing field pairs): N
- Missing provenance fields (skill-touched pages): N
- Missing page_type: (skill-touched pages): N
- Missing Sources sections: N
- Orphaned binary assets: N
- Orphaned sources in ingested/: N (+ N notes in assets/)
- Conceptual flags: N
- Log size: N entries (flagged if over 150)

## Broken Wikilinks
[page where found, broken link, suggested fix]

## Future Breakage Warnings
[page where found, raw/ link, suggested post-ingest destination]

## Orphan Pages
[page path, reason it may be orphaned]

## Stale Index Entries
[index entry, the path that no longer resolves]

## Over-length Index Entries
[index entry, current description length, suggested: tighten to 150 chars max]

## Missing Connections
[page pair, overlapping terms, suggested action: run wiki-integrate]

## Em-dash Violations
[file path, where found (filename / title field), suggested fix: replace — with ' - ']

## Missing Date Fields
[file path, which of date: / updated: are absent; likely indicates malformed frontmatter or non-skill creation]

## Stale Pages
[file path, updated: date, days since last touch; not flagged if status: artefact/snapshot/archived or page_type: reference]

## Schema Errors
[file path, field(s) affected, nature of error (invalid enum value / source: without reliability: / invalid page_type: value)]

## Missing Provenance Fields
[file path, which of status: / description: are absent; page has updated: and is a fact-establishing page_type]

## Missing page_type:
[file path, page has updated: but page_type: is absent; add page_type: using values from wiki-schema.md, or run wiki-integrate to infer and confirm]

## Missing Sources Sections
[file path, has source: in frontmatter but no ## Sources section in body]

## Orphaned Binary Assets
[file path, reason it has no wiki references]

## Orphaned Sources in ingested/
[file path, no wiki page references this source; consider re-ingesting or archiving]

## Notes: ingested/assets/
[file path, was unreadable at ingest time; re-attempt if capabilities have improved]

## Conceptual Flags
[page, nature of potential issue]

## Log Size
[log.md entry count; flagged if over 150 - run wiki-crystallize to archive the oldest entries, keeping the 50 most recent]

Step 9 - Prepend to log.md

Add the new entry at the top of log.md, below the header line, above all existing entries.

## [YYYY-MM-DD] lint | Full wiki pass
Summary: N broken links, N orphans, N stale entries, N missing connections, N date-field errors, N stale pages, N schema errors, N missing provenance/page_type fields, N orphaned assets.
Report: archive/lint-YYYY-MM-DD.md

Step 10 - Present findings

Report the summary. Do not offer to auto-fix anything. Suggest follow-up:

• Broken wikilinks -> fix manually or run wiki-integrate on affected pages
• Future breakage warnings -> update raw/ links to ingested/ paths after the next ingest run
• Orphan pages -> run wiki-integrate, or move to archive/ if deprecated
• Stale index entries -> remove from index.md or update the path
• Over-length index entries -> shorten the description to 150 chars max
• Missing connections -> run wiki-integrate on the flagged page pairs
• Em-dash violations -> rename the file (replace — with -) and update its title: field; search for any wikilinks pointing to the old name and update them
• Missing date fields -> inspect the page; if skill-written, the frontmatter is malformed and should be repaired manually
• Stale pages -> review and update; or set status: artefact, snapshot, or archived if the page is intentionally frozen
• Schema errors -> repair frontmatter manually: add missing reliability: when source: is present, correct invalid enum values for status:, reliability:, or page_type:
• Missing provenance fields -> re-run wiki-ingest or wiki-crystallize on the page to pick up status: and description:; or add manually following the schema
• Missing page_type: -> add page_type: to the page frontmatter using values from the enum in wiki-schema.md; or run wiki-integrate which will infer and confirm the type
• Missing Sources sections -> add a ## Sources section to the page body referencing the path in source:
• Orphaned binary assets -> move to an appropriate location or delete if unwanted
• Orphaned sources in ingested/ -> re-ingest the source file (drop back into raw/ and run wiki-ingest), or investigate why no wiki page was created
• Notes in ingested/assets/ -> retry ingestion if new tools or capabilities are available
• Log oversized -> run wiki-crystallize; it offers to archive the oldest log entries, keeping the 50 most recent

Key Rules

1. Never modify wiki pages - read-only except for writing the lint report to archive/
2. Never delete files - flag only; the human decides
3. Do not flag contextually-placed files - a file with wiki references in its domain is not an orphan
4. Blacklisted paths are skipped entirely - lint does not scan content inside blacklisted directories
5. index_excludes are not wiki pages but are valid link targets - archive/ and ingested/ are readable for link resolution even though they are excluded from the page inventory
6. Report is filed in archive/, not the wiki root

Cloud-Synced Vaults

Vaults stored in cloud sync services may have files not locally downloaded, appearing as zero-byte placeholders. If a file read returns empty unexpectedly, flag it as a possible sync issue and ask the user to confirm before retrying. Do not treat a zero-byte file as a successfully processed empty file.