Second Brain Query
- 2.1k installs
- 655 repo stars
- Updated April 7, 2026
- nicholasspisak/second-brain
second-brain-query is an agent skill that >.
About
Answer questions by searching and synthesizing knowledge from the wiki Read wiki index md to identify relevant pages Scan all category sections Sources Entities Concepts Synthesis for entries related to the question If qmd is installed check with command v qmd use it for search bash qmd search query terms path wiki This is especially useful when the wiki has grown beyond 100 pages where scanning the index becomes inefficient The second brain query agent skill provides documented workflows prerequisites triggers and safety guidance from its SKILL md source Agents load it when user requests match the description and follow step by step instructions without inventing capabilities It integrates with standard agent tooling for the tasks inputs outputs and failure modes described in the repository documentation
- Answer questions against the knowledge base wiki. Use when the user
- asks a question about their collected knowledge, wants to explore
- connections between topics, says "what do I know about X", or wants
- Follow second-brain-query SKILL.md steps and documented constraints.
- Follow second-brain-query SKILL.md steps and documented constraints.
Second Brain Query by the numbers
- 2,106 all-time installs (skills.sh)
- +39 installs in the week ending Aug 5, 2026 (Skillselion tracking)
- Ranked #565 of 16,544 AI & Agent Building skills by installs in the Skillselion catalog
- Security screen: LOW risk (skills.sh audit)
- Data as of Aug 6, 2026 (Skillselion catalog sync)
second-brain-query capabilities & compatibility
- Capabilities
- answer questions against the knowledge base wiki · asks a question about their collected knowledge, · connections between topics, says "what do i know · follow second brain query skill.md steps and doc
- Use cases
- orchestration
What second-brain-query says it does
Answer questions against the knowledge base wiki. Use when the user
asks a question about their collected knowledge, wants to explore
connections between topics, says "what do I know about X", or wants
npx skills add https://github.com/nicholasspisak/second-brain --skill second-brain-queryAdd your badge
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| Installs | 2.1k |
|---|---|
| repo stars | ★ 655 |
| Security audit | 3 / 3 scanners passed |
| Last updated | April 7, 2026 |
| Repository | nicholasspisak/second-brain ↗ |
When should an agent use second-brain-query and what problem does it solve?
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Who is it for?
Developers invoking second-brain-query as documented in the skill source.
Skip if: Skip when requirements fall outside second-brain-query documented scope.
When should I use this skill?
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What you get
Outputs aligned with the second-brain-query SKILL.md workflow and stated deliverables.
- Synthesized answer from wiki pages
- Referenced source page list
Files
Second Brain — Query
Answer questions by searching and synthesizing knowledge from the wiki.
Search Strategy
1. Start with the index
Read wiki/index.md to identify relevant pages. Scan all category sections (Sources, Entities, Concepts, Synthesis) for entries related to the question.
2. Use qmd for large wikis
If qmd is installed (check with command -v qmd), use it for search:
qmd search "query terms" --path wiki/This is especially useful when the wiki has grown beyond ~100 pages where scanning the index becomes inefficient.
3. Read relevant pages
Read the wiki pages identified by the index or search. Follow [[wikilinks]] to pull in related context from linked pages. Read enough pages to give a thorough answer, but don't read the entire wiki.
4. Check raw sources if needed
If the wiki pages don't fully answer the question, check relevant source summaries in wiki/sources/ for additional detail. Only go to files in raw/ as a last resort.
Synthesize the Answer
Format
Match the answer format to the question:
- Factual question → direct answer with citations
- Comparison → table or structured comparison
- Exploration → narrative with linked concepts
- List/catalog → bulleted list with brief descriptions
Citations
Always cite wiki pages using [[wikilink]] syntax. Example:
According to [[Source - Article Title]], the key finding was X. This connects to the broader pattern described in [[Concept Name]], which [[Entity Name]] has also explored.
Offer to save valuable answers
If the answer produces something worth keeping — a comparison, analysis, new connection, or synthesis — offer to save it:
"This comparison might be useful to keep in your wiki. Want me to save it as a synthesis page?"
If the user agrees: 1. Create a new page in wiki/synthesis/ with proper frontmatter 2. Add an entry to wiki/index.md under Synthesis 3. Append to wiki/log.md: ## [YYYY-MM-DD] query | Question summary
Conventions
- Search the wiki first. Only go to raw sources if the wiki doesn't have the answer.
- Cite your sources. Every factual claim should link to the wiki page it came from.
- Valuable answers compound. Encourage saving good analyses back into the wiki.
- Use
[[wikilinks]]for all internal references. Never use raw file paths.
Related Skills
/second-brain-ingest— process new sources into wiki pages/second-brain-lint— health-check the wiki for issues
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What is second-brain-query?
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When should I use second-brain-query?
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Is second-brain-query safe to install?
Review the Security Audits panel on this page before production use.