ownsearch

Smart local search with full-text search (SQLite FTS5) and semantic search (embeddings via ollama). Zero external dependencies — Python stdlib only.

Installation

pipx install /path/to/ownsearch
# or from the project directory:
pipx install .

Initial setup

# Configure ollama (if not running on localhost:11434)
ownsearch config set ollama_url http://your-ollama-host:11434

# Configure embedding model (default: bge-m3)
ownsearch config set embed_model bge-m3

# Configure database path (default: ~/.ownsearch.db)
ownsearch config set db_path /custom/path.db

# Add directories to index
ownsearch add-dir ~/Documents/notes
ownsearch add-dir ~/workspace/project

# Show current configuration
ownsearch config show

Configuration is stored in ~/.config/ownsearch/config.json.

Usage

# Index (incremental — only new/modified/deleted files)
ownsearch index

# Force full re-index
ownsearch index --full

# Full-text search (fast, literal)
ownsearch search "kubernetes cilium"

# Semantic search (finds related content even with different wording)
ownsearch search --semantic "network security"

# Combined search (FTS + semantic, deduplicated)
ownsearch search --both "migration strategy"

# Filter results by directory
ownsearch search --dir ~/workspace/project "deploy"

# JSON output (for integration with other tools/agents)
ownsearch search --json "query"

# Limit results
ownsearch search --limit 5 "query"

# Show status
ownsearch status

Directory management

ownsearch add-dir PATH      # Add a directory to the index
ownsearch remove-dir PATH   # Remove a directory and its data from the index
ownsearch list-dirs         # List indexed directories

Smart behavior

• Auto-pull models: If ollama is reachable but the embedding model is missing, it pulls it automatically during indexing.
• Incremental indexing: By default, only processes files whose mtime/size changed since the last run. Deleted files are cleaned up automatically.
• Graceful degradation: If ollama is unavailable, FTS5 search still works (semantic search is skipped).
• Smart chunking: Splits by markdown headings. Large files are partitioned into ~4000 char chunks while preserving heading context.
• Retry with backoff: Embedding requests retry on failure with exponential backoff to handle transient server issues.

Supported file types

Default: .md, .txt, .org, .rst

Configurable in ~/.config/ownsearch/config.json (extensions field).

Requirements

• Python >= 3.10 (stdlib only, no external packages)
• ollama (optional, for semantic search)

Why bge-m3?

The default embedding model is bge-m3 (~1.2GB). It was chosen after benchmarking against nomic-embed-text, mxbai-embed-large, and snowflake-arctic-embed2 on a real multilingual corpus (Spanish/English mixed documents). Results:

• nomic-embed-text: Essentially useless for non-English content — returned random results for Spanish queries.
• mxbai-embed-large: Good scores but introduced noise on technical queries (e.g., kubernetes results mixed with unrelated content).
• snowflake-arctic-embed2: Precise results but lower overall scores.
• bge-m3: Best balance — top results were consistently correct for both Spanish and English queries, with clean ranking and no noise.

You can change the model with ownsearch config set embed_model <model>. Embeddings are automatically invalidated and regenerated on the next index run when the model changes.

Using ownsearch from AI coding agents (skills)

ownsearch is the retrieval half of a RAG: instead of building a separate vector-DB stack, you expose this CLI to your coding agent as a skill so it knows to search your indexed docs (instead of grepping blindly) and how to call it. The --json output is designed exactly for this.

Claude Code, opencode, and Pi all support the Agent Skills standard: a SKILL.md Markdown file with name + description frontmatter. The same skill works in all three — only the install location and invocation differ.

The skill file

Create ownsearch/SKILL.md:

---
name: ownsearch
description: Search the user's locally indexed documentation with hybrid full-text + semantic search. Use this BEFORE grepping or guessing when a question is likely answered in the indexed docs — how something is deployed, configured or operated, infra details, runbooks, past decisions.
---

# ownsearch — local hybrid documentation search

`ownsearch` (already in PATH) searches the user's indexed docs with FTS5 (lexical)
+ semantic embeddings. Reach for it when an answer probably lives in the corpus.

## How to search

Prefer hybrid search with JSON output so you can parse hits programmatically:

    ownsearch search --json --both "your query here"

- `--both`     combine lexical + semantic, deduplicated (best default)
- `--semantic` semantic only (related content with different wording)
- (no flag)    fast literal FTS5 only
- `--dir PATH` scope to one indexed directory
- `--limit N`  cap results
- `--json`     machine-readable hits (file path + chunk); always use from a tool flow

Each JSON hit gives the source file path and the matching chunk. Open the file to
get full context before answering — this is retrieval only; reason over the results
yourself, don't treat a single chunk as the whole answer.

## Keeping the index fresh

If results look stale or a recently edited doc is missing:

    ownsearch index     # incremental
    ownsearch status    # DB size, indexed dirs, chunk/embedding counts, ollama health

## Discover what's indexed

    ownsearch list-dirs

Where to put it, per agent

Agent	Location (user-level)	Project-level	Invocation
Claude Code	~/.claude/skills/ownsearch/SKILL.md	.claude/skills/ownsearch/SKILL.md	auto-discovered; or /ownsearch
opencode	~/.config/opencode/skills/ownsearch/SKILL.md	.opencode/skills/ownsearch/SKILL.md	auto-discovered
Pi	~/.pi/agent/skills/ownsearch/SKILL.md	—	/skill:ownsearch, or auto-discovered

Claude Code also accepts a flat ~/.claude/skills/ownsearch.md (no subdirectory). The ownsearch/SKILL.md directory form is the portable one that works across all three agents.

To avoid permission prompts on every call, allowlist the read-only commands in your agent's settings — e.g. for Claude Code add Bash(ownsearch search:*) and Bash(ownsearch status:*) to permissions.allow.

opencode/Pi alternative: a slash command

If you prefer an explicit command over an auto-discovered skill, both opencode (~/.config/opencode/commands/ownsearch.md) and Claude Code support command-style Markdown where the filename becomes /ownsearch. A skill is usually better here because the agent invokes it on its own when a question matches the description.

Troubleshooting

HTTP Error 500 / some chunks never get embeddings

A 500 during ownsearch index usually comes from the ollama embedding server, not ownsearch. Two distinct causes:

• Transient (server busy, model briefly evicted from VRAM, OOM): ownsearch retries with backoff, and any file whose embeddings failed is automatically re-indexed on the next ownsearch index run (it is not marked as up-to-date).
• Permanent / content-specific: some embedding models (notably bge-m3 under ollama) emit NaN for certain token sequences, and ollama then returns failed to encode response: json: unsupported value: NaN (HTTP 500). Retrying never helps, so ownsearch skips just that chunk (logged as "Skipping unembeddable chunk") and leaves it FTS-searchable but not semantic. The rest of the file is unaffected.

To find chunks that are missing an embedding (excluding short ones, which are skipped by design): they stay searchable via plain FTS5, so this is rarely worth chasing. If a specific important chunk is affected, lightly rewording it (e.g. punctuation) usually sidesteps the model's NaN.

License

This project is licensed under the GNU General Public License v3.0 — see LICENSE for details.