pyr0ball
89a58ec9b0
Bi-encoder embeddings collapse a whole query into one vector, losing multi-part reasoning structure — queries like "the procedure for setting an IP on an AVC-X" or "what is the action economy for a fighter casting a spell while prone" lose nuance. Agent-ModernColBERT is a late-interaction retriever: per-token embeddings, scored via MaxSim at query time, built specifically for agentic/multi-hop queries. Implements Option A from the issue (in-process, via `pylate`) rather than Option B (managed cf-orch service) — cf-orch already has `agent-moderncolbert` registered in model_registry.yaml with a `pagepiper/retrieve` assignment in assignments.yaml pointing at it and referencing this issue directly, someone had already pre-wired that side. - app/services/colbert_index.py: new ColBERTIndex class, mirrors BM25Index's dirty-flag/rebuild-from-SQLite pattern exactly — no separate per-shelve indexing step needed, just mark_dirty() on the same callback that already marks BM25 dirty. - app/services/retriever.py: hybrid_search's semantic half now merges BM25 with ColBERT MaxSim scores (min-max normalized per-batch, since MaxSim is unbounded unlike the old sqlite-vec L2-distance path) instead of Ollama-embed + sqlite-vec cosine. BM25 merge/rank/per-doc-cap/ adjacent-chunk-window logic is unchanged. - app/main.py / app/deps.py: per-user ColBERTIndex registry, same pattern as the existing per-user BM25Index registry. - Existing BYOK tier gate preserved exactly (llm is None check) — this is a retrieval-technology swap, not a tier/licensing change. The ColBERT model runs locally via pylate with no Ollama dependency, but gating still follows product tiering. - 12 new tests. pylate is intentionally NOT installed in the dev/test env — see the cf-sysadmin skill's "Known Gotchas" for why (installing it directly into the shared `cf` conda env broke several other services' torch/transformers pins on 2026-07-10). Tests inject fake pylate modules via sys.modules instead. Known follow-up (not addressed here): shelve scripts still compute and store Ollama embeddings into `page_vecs` at shelve time — that table is no longer read by search/chat now that retrieval uses the ColBERT index. Removing the now-redundant embedding step is separate cleanup. Closes: #8
149 lines
5.6 KiB
Markdown
149 lines
5.6 KiB
Markdown
# Pagepiper
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**Search your document library. Get answers with exact page citations.**
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[](https://git.opensourcesolarpunk.com/Circuit-Forge/pagepiper)
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[](LICENSE)
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[](https://git.opensourcesolarpunk.com/Circuit-Forge/pagepiper/releases)
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Self-hosted PDF and EPUB search with BM25 (Best Match 25) full-text indexing and LLM (large language model) synthesis. Drop your documents in, ask a question, get an answer that tells you exactly which page to turn to.
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Built for TTRPG (tabletop roleplaying game) players who are tired of ctrl-F'ing through six-hundred-page rulebooks. Works equally well for legal research, technical manuals, academic papers, or any personal document library you want to query in plain language.
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No cloud required. Your files stay on your machine.
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---
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## Screenshots
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### Library
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### Chat with citations
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---
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## Why Pagepiper?
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- **Your library, not ours.** Documents are indexed and stored locally. Nothing is sent to a third-party service unless you explicitly configure a cloud LLM.
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- **Works without an LLM.** BM25 full-text search runs entirely inside the Docker container. No Ollama, no API key, no GPU required for keyword search.
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- **Answers cite their sources.** Every LLM response includes the document name and page number it drew from. You can verify or dispute every answer.
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- **Hybrid search when you want it.** Connect a local Ollama instance to unlock hybrid search — BM25 merged with Agent-ModernColBERT, a late-interaction retriever that scores passages by token-level relevance instead of collapsing your whole question into one vector, so multi-part questions find the right passage even when it doesn't use your exact words.
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- **Open ingest pipeline.** The indexing and search layer is MIT-licensed. Add support for new formats, improve the PDF parser, contribute — the community benefits directly.
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---
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## Quick Start
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**Prerequisites:** [Docker](https://docs.docker.com/get-docker/) and Docker Compose. Optionally [Ollama](https://ollama.com) for LLM-synthesized answers.
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```bash
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git clone https://git.opensourcesolarpunk.com/Circuit-Forge/pagepiper
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cd pagepiper
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cp .env.example .env
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./manage.sh start
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```
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Open [http://localhost:8521](http://localhost:8521).
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### Configure
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Open `.env` and set your paths:
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```dotenv
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# Where Pagepiper stores its SQLite index and uploaded files
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PAGEPIPER_DATA_DIR=./data
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# Directory to scan for existing PDFs/EPUBs (used by the Scan button)
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PAGEPIPER_BOOKS_DIR=/path/to/your/documents
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```
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To unlock LLM synthesis and semantic search, add your Ollama endpoint:
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```dotenv
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PAGEPIPER_OLLAMA_URL=http://localhost:11434
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PAGEPIPER_CHAT_MODEL=mistral:7b
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PAGEPIPER_EMBED_MODEL=nomic-embed-text
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```
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### Add documents
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**Upload via browser** — click **Upload** in the Library view. Files save to `data/uploads/` and index automatically.
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**Scan a directory** — set `PAGEPIPER_BOOKS_DIR` in `.env`, then click **Scan**. Pagepiper finds all files recursively and queues them.
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---
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## Supported Formats
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| Format | Ingest | Page-level citations |
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|--------|--------|----------------------|
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| PDF | Yes | Yes |
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| EPUB | Yes | Yes (chapter/location) |
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---
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## Stack
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| Layer | Technology |
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|-------|-----------|
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| Backend API | FastAPI + SQLite |
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| Full-text search | BM25 (custom index, no external service) |
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| Semantic search | Agent-ModernColBERT late-interaction retrieval, via `pylate` (optional, BYOK-gated) |
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| LLM synthesis | Ollama (local, any model) |
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| Frontend | Vue 3 SPA served by nginx |
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| Deployment | Docker Compose |
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Default ports: Web UI `8521`, API `8540`.
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---
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## Management
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```bash
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./manage.sh start # Build and start
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./manage.sh stop # Stop
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./manage.sh restart # Restart
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./manage.sh status # Show container status
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./manage.sh logs [svc] # Tail logs (pass 'api' or 'web' to filter)
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./manage.sh open # Open UI in browser
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./manage.sh build # Rebuild images
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./manage.sh test # Run test suite
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```
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---
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## Tiers
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| Feature | Free | Paid (BYOK) |
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|---------|------|-------------|
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| PDF and EPUB upload | Yes | Yes |
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| Directory scan | Yes | Yes |
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| BM25 full-text search | Yes | Yes |
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| Unlimited local ingestion | Yes | Yes |
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| Hybrid BM25 + vector search | — | Yes (local Ollama) |
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| LLM synthesis with page citations | — | Yes (local Ollama) |
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BYOK means you supply your own Ollama instance. No cloud API keys, no usage metering.
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---
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## Forgejo-primary
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Pagepiper is developed and hosted at [git.opensourcesolarpunk.com/Circuit-Forge/pagepiper](https://git.opensourcesolarpunk.com/Circuit-Forge/pagepiper). GitHub mirrors exist for discoverability only. File issues and submit pull requests on Forgejo.
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---
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## License
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Pagepiper uses a split license:
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- **MIT:** Document ingest pipeline, BM25 full-text index, library management, EPUB support — the core discovery and retrieval layer.
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- **BSL 1.1 (Business Source License):** Hybrid vector search, LLM synthesis, RAG (retrieval-augmented generation) chat interface — free for personal non-commercial self-hosting; commercial use or SaaS re-hosting requires a license. Converts to MIT after four years.
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---
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*A [Circuit Forge LLC](https://circuitforge.tech) product. Privacy · Safety · Accessibility — co-equal, non-negotiable.*
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