Second Brain — Lint
Health-check the wiki and report issues with actionable fixes.
Audit Steps
Run all checks below, then present a consolidated report.
1. Broken wikilinks
Scan all wiki pages for [[wikilink]] references. For each link, verify the target page exists. Report any broken links.
# Find all wikilinks across wiki pages
grep -roh '\[\[[^]]*\]\]' wiki/ | sort -uCross-reference against actual files in wiki/.
2. Orphan pages
Find pages with no inbound links — no other page references them via [[wikilink]].
For each .md file in wiki/sources/, wiki/entities/, wiki/concepts/, wiki/synthesis/:
- Extract the page name (filename without extension)
- Search all other wiki pages for
[[Page Name]] - If no other page links to it, it's an orphan
3. Contradictions
Read pages that share entities or concepts and look for conflicting claims. Flag when:
- Two source summaries make opposing claims about the same topic
- An entity page contains information that conflicts with a source summary
- Dates, figures, or factual claims differ between pages
4. Stale claims
Cross-reference source dates with wiki content. Flag when:
- A concept page cites only old sources and newer sources exist on the same topic
- Entity information hasn't been updated despite newer sources mentioning that entity
5. Missing pages
Scan for [[wikilinks]] that point to pages that don't exist yet. These are topics the wiki mentions but hasn't given their own page. Assess whether they warrant a page.
6. Missing cross-references
Find pages that discuss the same topics but don't link to each other. Look for:
- Entity pages that mention concepts without linking them
- Concept pages that mention entities without linking them
- Source summaries that cover the same topic but don't reference each other
7. Index consistency
Verify wiki/index.md is complete and accurate:
- Every page in
wiki/sources/,wiki/entities/,wiki/concepts/,wiki/synthesis/has an index entry - No index entries point to deleted pages
- Entries are under the correct category header
8. Data gaps
Based on the wiki's current coverage, suggest:
- Topics mentioned frequently but lacking depth
- Questions the wiki can't answer well
- Areas where a web search could fill in missing information
Report Format
Present findings grouped by severity:
Errors (must fix)
- Broken wikilinks
- Contradictions between pages
- Index entries pointing to missing pages
Warnings (should fix)
- Orphan pages with no inbound links
- Stale claims from outdated sources
- Missing pages for frequently referenced topics
Info (nice to fix)
- Potential cross-references to add
- Data gaps that could be filled
- Index entries that could be more descriptive
For each finding, include:
- What: description of the issue
- Where: the specific file(s) and line(s)
- Fix: what to do about it
After the Report
Ask the user:
"Found N errors, N warnings, and N info items. Want me to fix any of these?"
If the user agrees, fix issues and report what changed.
Log the lint pass
Append to wiki/log.md:
## [YYYY-MM-DD] lint | Health check
Found N errors, N warnings, N info items. Fixed: [list of fixes applied].When to Lint
- After every 10 ingests — catches cross-reference gaps while they're fresh
- Monthly at minimum — catches stale claims and orphan pages over time
- Before major queries — ensures the wiki is healthy before you rely on it for analysis
Related Skills
/second-brain-ingest— process new sources into wiki pages/second-brain-query— ask questions against the wiki