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pi/.pi/agent/skills/qmd/SKILL.md

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+---
+name: qmd
+description: Search markdown knowledge bases, notes, and documentation using the qmd CLI. Use when searching notes, finding documents, or looking up information in the knowledge base.
+license: MIT
+compatibility: Requires qmd CLI. Install via `npm install -g @tobilu/qmd`.
+metadata:
+  author: tobi
+  version: "2.0.0"
+allowed-tools: Bash(qmd:*)
+---
+
+# QMD - Quick Markdown Search
+
+Local search engine for markdown content. Use via the `qmd` CLI (bash).
+
+## Status
+
+!`qmd status 2>/dev/null || echo "Not installed: npm install -g @tobilu/qmd"`
+
+## CLI Usage
+
+```bash
+qmd query "question"                        # Auto-expand + rerank (recommended)
+qmd query $'lex: X\nvec: Y'                 # Structured query document
+qmd query $'expand: question'              # Explicit expand
+qmd search "keywords"                       # BM25 only (no LLM)
+qmd get "path/to/file.md"                   # Retrieve a document by path
+qmd get "#abc123"                           # Retrieve by docid
+qmd get "path/to/file.md:100" -l 50         # Retrieve starting at line 100, 50 lines
+qmd multi-get "journals/2026-*.md" -l 40    # Batch fetch by glob
+qmd multi-get notes/foo.md,notes/bar.md     # Comma-separated list
+```
+
+## Query Types
+
+| Type | Method | Input |
+|------|--------|-------|
+| `lex` | BM25 | Keywords — exact terms, names, code |
+| `vec` | Vector | Question — natural language |
+| `hyde` | Vector | Answer — hypothetical result (50-100 words) |
+
+## Writing Good Queries
+
+**lex (keyword)**
+- 2-5 terms, no filler words
+- Exact phrase: `"connection pool"` (quoted)
+- Exclude terms: `performance -sports` (minus prefix)
+- Code identifiers work: `handleError async`
+
+**vec (semantic)**
+- Full natural language question
+- Be specific: `"how does the rate limiter handle burst traffic"`
+
+**hyde (hypothetical document)**
+- Write 50-100 words of what the *answer* looks like
+- Use the vocabulary you expect in the result
+
+**expand (auto-expand)**
+- Single-line query (implicit) or `expand: question`
+- Lets a local LLM generate lex/vec/hyde variations
+- Do not mix with other typed lines
+
+## Combining Types
+
+| Goal | Approach |
+|------|----------|
+| Know exact terms | `lex` only |
+| Don't know vocabulary | Single-line (implicit expand) or `vec` |
+| Best recall | `lex` + `vec` |
+| Complex topic | `lex` + `vec` + `hyde` |
+
+First query gets 2x weight — put your strongest signal first.
+
+## Lex Syntax
+
+| Syntax | Meaning | Example |
+|--------|---------|---------|
+| `term` | Prefix match | `perf` matches "performance" |
+| `"phrase"` | Exact phrase | `"rate limiter"` |
+| `-term` | Exclude | `performance -sports` |
+
+## Collection Filtering
+
+```bash
+qmd query --collections docs "question"
+qmd query --collections docs,notes "question"
+```
+
+Omit to search all collections.