How do I install the Second Brain Query skill?

Run npx skillmds add om-scogo/second-brain-query in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Second Brain Query safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: docs only. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Second Brain Query?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Second Brain Query free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Second Brain Query?

om-scogo (@om-scogo) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Second Brain Query by om-scogo — Agent Skill

Name: Second Brain Query
Rating: 4.5 (4 reviews)
Author: om-scogo

Second Brain Query

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 to search their wiki.

om-scogo 3ff497d 4 files · 8.8 KB Updated Sep 8, 2026 0 repo stars

File contents

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:

Create a new page in wiki/synthesis/ with proper frontmatter
Add an entry to wiki/index.md under Synthesis
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

---name: second-brain-querydescription: 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 to search their wiki.---# Second Brain — QueryAnswer questions by searching and synthesizing knowledge from the wiki.## Search Strategy### 1. Start with the indexRead `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 wikisIf `qmd` is installed (check with `command -v qmd`), use it for search:```bashqmd 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 pagesRead 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 neededIf 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### FormatMatch 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### CitationsAlways 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 answersIf 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 frontmatter2. Add an entry to `wiki/index.md` under Synthesis3. 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

Frequently asked questions