research-pipeline 0.15.0

A multi-source pipeline for searching, screening, downloading, converting, and summarizing academic papers from arXiv, Google Scholar, and more.

research-pipeline

research-pipeline is a deterministic Python 3.12+ workflow for finding, screening, downloading, converting, and synthesizing academic papers. It is useful when you need an auditable literature review, not just a one-off paper search.

It ships as both a Typer CLI and an MCP server for agent-driven research.

Contents

• What It Does
• Installation
• Quick Start
• Pipeline
• CLI Commands
• Readable Reports
• MCP Server
• AI Skill And Agents
• Configuration
• Artifacts
• Development

What It Does

• Searches arXiv, Google Scholar, Semantic Scholar, OpenAlex, DBLP, and HuggingFace daily papers, with cross-source deduplication.
• Screens candidates with BM25 heuristics, optional SPECTER2 semantic reranking, optional LLM judging, diversity-aware selection, and feedback-adjusted weights.
• Downloads PDFs politely with rate limits, retry, caching, and manifest tracking.
• Converts PDFs to Markdown through local or cloud backends: Docling, Marker, PyMuPDF4LLM, MinerU, Mathpix, Datalab, LlamaParse, Mistral OCR, or OpenAI Vision.
• Supports two-tier conversion: fast rough conversion for all papers and high-quality fine conversion for selected papers.
• Extracts structured chunks, bibliography data, citation contexts, and retrieval indexes from converted papers.
• Produces schema-first per-paper extraction records, design-neutral cross-paper synthesis, confidence scoring, evidence aggregation, BibTeX exports, templated Markdown reports, and self-contained HTML reports.
• Adds research quality layers: citation expansion, quality scoring, claim decomposition, knowledge graph ingestion, report validation, multi-run comparison, coherence checks, memory consolidation, blinding audits, Pass@k / Pass[k] metrics, case-based strategy reuse, KG quality checks, adaptive stopping, and 4-layer confidence calibration.

Installation

# Base package
pip install research-pipeline

# Recommended local converter
pip install 'research-pipeline[docling]'

# Other local converters
pip install 'research-pipeline[marker]'       # high accuracy, GPL-3.0
pip install 'research-pipeline[pymupdf4llm]'  # fast CPU conversion, AGPL
pip install 'research-pipeline[mineru]'       # scientific PDF parser

# Search and reranking extras
pip install 'research-pipeline[scholar]'      # Google Scholar via scholarly
pip install 'research-pipeline[serpapi]'      # Google Scholar via SerpAPI
pip install 'research-pipeline[reranker]'     # sentence-transformers reranker

# Cloud conversion extras
pip install 'research-pipeline[datalab]'
pip install 'research-pipeline[llamaparse]'
pip install 'research-pipeline[mistral-ocr]'
pip install 'research-pipeline[openai-vision]'

# Development checkout
uv sync --extra dev --extra docling --extra scholar --extra reranker

Quick Start

# Fast abstract-only pass
research-pipeline run --profile quick "transformer architectures for time series"

# Full evidence-backed pipeline
research-pipeline run "local memory systems for AI agents"

# Deep profile with quality, expansion, claim analysis, and TER gap filling
research-pipeline run --profile deep "comprehensive survey of AI memory systems"

# Search every configured source family
research-pipeline run --source all "long-context retrieval augmented generation"

Run stages independently when you want control over review points:

research-pipeline plan "multimodal RAG for long-document QA"
research-pipeline search --run-id <RUN_ID> --source all
research-pipeline screen --run-id <RUN_ID> --diversity
research-pipeline quality --run-id <RUN_ID>
research-pipeline download --run-id <RUN_ID>
research-pipeline convert-rough --run-id <RUN_ID>
research-pipeline convert-fine --run-id <RUN_ID> --paper-ids "2401.12345"
research-pipeline extract --run-id <RUN_ID>
research-pipeline summarize --run-id <RUN_ID>
research-pipeline report --run-id <RUN_ID> --template structured_synthesis
research-pipeline validate --run-id <RUN_ID>

Pipeline

flowchart TD
    A["Plan queries"] --> B["Search sources"]
    B --> C["Screen candidates"]
    C --> D["Quality and expansion"]
    D --> E["Download PDFs"]
    E --> F["Convert to Markdown"]
    F --> G["Extract evidence"]
    G --> H["Summarize papers"]
    H --> I["Report, validate, export"]

Profiles:

Profile	Stages	Use Case
quick	plan, search, screen, summarize	Fast abstract-only scan
standard	plan through summarize	Default full pipeline
deep	standard plus quality, expand, claim analysis, TER loop	Comprehensive literature review
auto	selected by query complexity	Mixed workloads

Search sources:

Source	Notes
arxiv	Polite arXiv API client with cache and rate limits
scholar	Google Scholar through scholarly or SerpAPI
semantic_scholar	Broad metadata, citations, and abstracts
openalex	Open bibliographic metadata
dblp	Computer science bibliography
huggingface	Recent HuggingFace daily papers
all	arXiv, Scholar, Semantic Scholar, OpenAlex, DBLP, HuggingFace

CLI Commands

Group	Commands
Core pipeline	plan, search, screen, download, convert, extract, summarize, run, inspect
Search expansion and organization	quality, expand, cluster, enrich, watch
Conversion and export	convert-file, convert-rough, convert-fine, export-bibtex, export-html, report
Analysis and validation	analyze, analyze-claims, score-claims, confidence-layers, aggregate, validate, compare, evaluate
Feedback and memory	feedback, index, coherence, consolidate, memory-stats, memory-episodes, memory-search
Knowledge graph	kg-ingest, kg-stats, kg-query, kg-quality, cite-context
Reliability checks	blinding-audit, dual-metrics, adaptive-stopping, cbr-lookup, cbr-retain
Setup	setup installs the bundled skill and paper-analysis agents

Useful examples:

# Citation graph expansion
research-pipeline expand --run-id <RUN_ID> --paper-ids "2401.12345" \
  --direction both --bfs-depth 2 --bfs-query "memory,agents"

# Evidence-only aggregation
research-pipeline aggregate --run-id <RUN_ID> --min-pointers 1

# Multi-run comparison and coherence
research-pipeline compare --run-a <RUN_A> --run-b <RUN_B>
research-pipeline coherence <RUN_A> <RUN_B> <RUN_C>

# Knowledge graph
research-pipeline kg-ingest --run-id <RUN_ID>
research-pipeline kg-stats
research-pipeline kg-query 2401.12345

Readable Reports

The pipeline can produce machine-readable synthesis JSON and human-readable Markdown or HTML reports. For human-facing reports, prefer:

• clear headings and a contents section with internal links;
• Mermaid diagrams for process charts, usually vertical flowchart TD charts;
• LaTeX for formulas, using $...$ inline and $$...$$ for display equations;
• tables for comparisons and coverage matrices;
• paper links that jump to references or evidence-map entries;
• recommendations linked back to findings, gaps, and evidence.

# Render Markdown from structured synthesis JSON
research-pipeline report --run-id <RUN_ID> --template structured_synthesis

# Export self-contained HTML
research-pipeline export-html --run-id <RUN_ID>

# Validate report completeness and readability signals
research-pipeline validate --run-id <RUN_ID>

MCP Server

Run the MCP server with:

python -m mcp_server
# or, from a development checkout
uv run python -m mcp_server

Current MCP surface:

• 42 tools covering pipeline stages, conversion, quality, expansion, validation, reporting, memory, KG, reliability, and the server-driven research_workflow.
• 15 resources for run manifests, plans, candidates, shortlists, PDFs, Markdown, summaries, synthesis, quality scores, config, index, workflow state, telemetry, and budget.
• 6 prompts for topic planning, workflow orchestration, paper analysis, comparison, search refinement, and quality assessment.

The research_workflow tool adds harness engineering: telemetry, bounded context, governance gates, structural verification, doom-loop monitoring, and crash recovery.

AI Skill And Agents

Install the bundled skill for Claude Code / GitHub Copilot and Codex, plus Claude Code sub-agent definitions:

research-pipeline setup              # skills + agents
research-pipeline setup --symlink    # symlink for development
research-pipeline setup --force      # overwrite existing files
research-pipeline setup --skip-agents
research-pipeline setup --skip-skill

Installed files:

• Claude/GitHub Copilot skill: ~/.claude/skills/research-pipeline/
• Codex skill: ~/.codex/skills/research-pipeline/
• Agents: ~/.claude/agents/paper-screener.md, ~/.claude/agents/paper-analyzer.md, ~/.claude/agents/paper-synthesizer.md

Configuration

Start from the example config:

cp config.example.toml config.toml

High-impact settings:

profile = "standard"          # quick, standard, deep, auto
workspace = "runs"

[sources]
enabled = ["arxiv"]           # or include scholar, semantic_scholar, openalex, dblp, huggingface
scholar_backend = "scholarly" # or "serpapi"

[screen]
diversity = false
use_semantic_reranking = false

[conversion]
backend = "docling"
fallback_backends = []

[llm]
enabled = false               # enables LLM screening/summarization when configured
provider = "ollama"           # ollama or openai-compatible

[gates]
enabled = false
auto_approve = true

Environment overrides:

Variable	Purpose
RESEARCH_PIPELINE_CONFIG	Config file path
RESEARCH_PIPELINE_CACHE_DIR	Override cache directory
RESEARCH_PIPELINE_WORKSPACE	Override workspace directory
RESEARCH_PIPELINE_DISABLE_LLM	Force LLM features off
RESEARCH_PIPELINE_LLM_PROFILE	Select LLM profile

Artifacts

Each run writes auditable outputs under runs/<run_id>/:

runs/<run_id>/
├── plan/query_plan.json
├── search/candidates.jsonl
├── screen/shortlist.json
├── download/pdf/*.pdf
├── convert/markdown/*.md
├── convert_rough/markdown/*.md
├── convert_fine/markdown/*.md
├── extract/*.extract.json
├── extract/*.bibliography.json
├── summarize/extractions/*.extraction.json
├── summarize/extractions/*.extraction.md
├── summarize/extractions/extraction_quality.json
├── summarize/*.summary.json
├── summarize/synthesis_report.json
├── summarize/synthesis_report.md
├── summarize/synthesis_traceability.json
├── summarize/synthesis_quality.json
├── summarize/synthesis.json
├── summarize/synthesis_confidence.json
├── quality/quality_scores.jsonl
├── expand/expanded_candidates.jsonl
├── analysis/
├── comparison/
└── logs/

The runs/ and workspace/ directories are generated outputs and are not tracked by git.

Development

uv sync --extra dev --extra docling --extra scholar --extra reranker
uv run pytest tests/unit/ -xvs
uv run ruff format .
uv run ruff check . --fix
uv run mypy src/
uv run pre-commit run --all-files

See docs/architecture.md for architecture details and docs/user-guide.md for the full user guide.

License

MIT