RAG and search: tools for developers

Retrieval-augmented tools, vector databases, embeddings and semantic search. An entry can appear under several use cases when its topics or description provide several explicit signals.

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115 entries in this view.

Tool ranking

Ranked by measured growth, normalized across sources. Raw values keep their source-specific window, shown under each tool; a change requires at least two snapshots from the last 7 days.

  1. 1

    Other
    Active

    剧本分镜工具智能体（PenShot）：电影/动漫/短剧/小说/剧本→分镜→片段→prompt | 基于 LangGraph+LLM，自动解析任意格式剧本，生成 Sora/Veo/Runway 等模型可用的连贯text-to-video提示词。保持角色/剧情跨片段一致，支持 MCP/REST API/函数调用 | Python库 + A2A集成。（LLM-powered screenplay-to-video-prompt agent. Break scripts into…

    PythonLicense: MIT
    • agent-to-agent
    • ai-filmmaking
    • ai-video-generation
    • character-consistency
    • function-calling

    githubmeasured growthOpen source ↗

    160GitHub stars+7 (+4.6 %)
  2. 2

    MCP
    Active

    Search your past AI coding sessions — Claude Code, Codex, Cursor and 17 more. Indexes the session history they already wrote to disk, including months from before you installed it, and recalls it in any of them. No LLM, no embeddings, one…

    GoLicense: MIT
    • agent-memory
    • ai-memory
    • claude-code
    • claude-code-hooks
    • claude-code-plugins

    githubmeasured growthOpen source ↗

    742GitHub stars+7 (+0.95 %)
  3. 3

    Other
    Active

    An intentionally vulnerable OWASP LLM Top 10 training platform for AI Security, Prompt Injection, RAG Security, Agent Security, and GenAI penetration testing.

    PythonLicense: MIT
    • agent-security
    • ai-security
    • ai-security-tool
    • artificial-intelligence
    • ctf

    githubmeasured growthOpen source ↗

    311GitHub stars+6 (+2.0 %)
  4. 4

    Skill
    Active

    Hivemind turns your traces into reusable skills across agents

    TypeScriptLicense: Apache-2.0
    • ai
    • ai-agents
    • ai-memory
    • anthropic
    • artificial-intelligence

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add activeloopai/hivemind

    1 594GitHub stars+6 (+0.38 %)
  5. 5

    MCP
    Active

    Context Engineering: Build Consistent, Accurate, Predictable AI Systems

    PythonLicense: Apache-2.0
    • agent-skills
    • agentic-ai
    • context-engineering
    • generative-ai
    • llm

    githubmeasured growthOpen source ↗

    136GitHub stars+5 (+3.8 %)
  6. 6

    Skill
    Active

    Andrej Karpathy's LLM Wiki pattern as a skill & Claude Code plugin — turn accumulated sources into a self-maintaining, scalable markdown knowledge base.

    TypeScriptLicense: MIT
    • ai-tools
    • claude-code-plugin
    • claude-code-skill
    • codex-skill
    • cursor

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add praneybehl/llm-wiki-plugin

    99GitHub stars+5 (+5.3 %)
  7. 7

    MCP
    Active

    Context engineering for AI agents. ~80% fewer tokens. Fix tool overload. Skills and memory with in-process BM25 and semantic retrieval. Progressive Disclosure. No vector DB.

    TypeScriptLicense: MIT
    • accuracy
    • agents
    • claude-skills
    • context
    • harness

    githubmeasured growthOpen source ↗

    434GitHub stars+5 (+1.2 %)
  8. 8

    Skill
    Active

    FoJin-powered Buddhist AI persona framework — source-grounded, boundary-aware, fidelity-tested, runtime-ready.

    PythonLicense: MIT
    • agent-skills
    • ai-persona
    • bdrc
    • buddhism
    • chinese-buddhism

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/xr843/Master-skill ~/.claude/skills/Master-skill

    382GitHub stars+5 (+1.3 %)
  9. 9

    MCP
    Active

    Local-first RAG server for developers. Semantic + keyword search for code and technical docs. Works with MCP or CLI. Fully private, zero setup.

    TypeScriptLicense: MIT
    • agent-skills
    • cli-tool
    • developer-tools
    • hybrid-search
    • local-first

    githubmeasured growthOpen source ↗

    381GitHub stars+5 (+1.3 %)
  10. 10

    Skill
    Active

    Deepdive skill for Claude Code — 12-phase research pipeline: plan-review gate, parallel sub-agent search, claims-ledger triangulation with dissent protection, relevance × authority evidence filter, multi-angle red team, four-layer citation…

    PythonLicense: MIT
    • agent-skills
    • agentic-workflow
    • ai-research-assistant
    • anthropic
    • citation-verification

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/Socialpranker/deepdive ~/.claude/skills/deepdive

    393GitHub stars+5 (+1.3 %)
  11. 11

    Other
    Active

    Nuwax Agent OS - An enterprise-grade AI Agent Development and Operation Platform - Providing a complete solution for agent creation and distribution, knowledge base management, model proxy, memory system, and plugin ecosystem.

    TypeScriptLicense: Apache-2.0
    • a2a
    • agent
    • agent-os
    • agent-sandbox
    • agentic

    githubmeasured growthOpen source ↗

    878GitHub stars+4 (+0.46 %)
  12. 12

    Skill
    Active

    Agent skills for Qdrant vector search: scaling, performance optimization, search quality, monitoring, deployment, model migration, version upgrades, and SDK usage across Python, TypeScript, Rust, Go, .NET, Java

    PythonLicense: Apache-2.0
    • agent-skills
    • ai-agents
    • claude-code
    • codex
    • cursor

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/qdrant/skills ~/.claude/skills/skills

    230GitHub stars+4 (+1.8 %)
  13. 13

    Other
    Active

    CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

    JavaLicense: Apache-2.0
    • analytics
    • big-data
    • cratedb
    • database
    • dbms

    githubmeasured growthOpen source ↗

    4 432GitHub stars+3 (+0.07 %)
  14. 14

    MCP
    Active

    Local-first AI PKM for coding conversations: import Claude Code/Cursor/Codex, distill notes, semantic search, tag graph, MCP memory.

    TypeScriptLicense: Apache-2.0
    • agent-skills
    • ai-memory
    • ai-tools
    • claude-code
    • codex

    githubmeasured growthOpen source ↗

    58GitHub stars+3 (+5.5 %)
  15. 15

    Skill
    Active

    The Complete AI Development Toolkit for Claude Code. 106 skills, 36 agents, 171 hooks. Install `ork` for stable (v9.x), or `ork-alpha` for the v10 line, which ships daily.

    TypeScriptLicense: MIT
    • agent-orchestration
    • agents
    • ai-agents
    • ai-development
    • anthropic

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add yonatangross/orchestkit

    227GitHub stars+3 (+1.3 %)
  16. 16

    Agent
    Active

    BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent, Unified model management, Evaluation, SFT, Dataset Management, Enterprise-level…

    PythonLicense: Apache-2.0
    • agent
    • ai
    • chatbot
    • enterprise
    • finetune

    githubmeasured growthOpen source ↗

    11 923GitHub stars+3 (+0.03 %)
  17. 17

    Library
    Active

    LakeSoul is an end-to-end, realtime cloud-native Lakehouse framework for fast data ingestion, concurrent updates, incremental analytics, multimodal data processing and vector search — powering next-generation BI and AI workloads.

    JavaLicense: Apache-2.0
    • arrow
    • daft
    • datafusion
    • flink
    • gluten

    githubmeasured growthOpen source ↗

    3 249GitHub stars+2 (+0.06 %)
  18. 18

    MCP
    Active

    MCP server for Claude Code and Codex. One tool call replaces ~42 minutes of agent exploration

    TypeScriptLicense: MIT
    • ai-agents
    • claude
    • claude-ai
    • claude-code
    • claude-code-plugin

    githubmeasured growthOpen source ↗

    103GitHub stars+2 (+2.0 %)
  19. 19

    Agent
    Active

    Ruby's capable AI runtime

    RubyLicense: MIT
    • a2a
    • a2a-client
    • agent
    • agent2agent
    • agents

    githubmeasured growthOpen source ↗

    139GitHub stars+2 (+1.5 %)
  20. 20

    MCP
    Active

    AST knowledge graph MCP server for Claude Code — semantic search, call graph traversal, HTTP route tracing, impact analysis. Auto-indexes 10 languages via Tree-sitter.

    RustLicense: MIT
    • ast
    • call-graph
    • claude-code
    • claude-code-plugin
    • code-navigation

    githubmeasured growthOpen source ↗

    72GitHub stars+2 (+2.9 %)
  21. 21

    MCP
    Active

    The Private Agent OS — search files, run AI agents, connect to 10,000+ tools via the complete protocol stack (MCP, AG-UI, A2UI, A2A). Zero cloud. Zero telemetry. On-device inference.

    Rust
    • a2a
    • a2ui
    • ag-ui
    • agent-orchestration
    • agent-os

    githubmeasured growthOpen source ↗

    31GitHub stars+2 (+6.9 %)
  22. 22

    MCP
    Active

    Persistent long-term memory for Claude Code via MCP — captures coding decisions, bugfixes, and context across sessions. Hybrid FTS5 + TF-IDF search with episode batching. Single SQLite DB, no external services. Alternative to claude-mem…

    JavaScriptLicense: MIT
    • agent-memory
    • ai-coding-assistant
    • ai-memory
    • anthropic
    • claude

    githubmeasured growthOpen source ↗

    56GitHub stars+2 (+3.7 %)
  23. 23

    MCP
    Active

    USPTO patent creation system with MCP server + Claude Code plugin. Hybrid RAG search over MPEP/USC/CFR, BigQuery access to 76M+ patents, automated 35 USC 112 compliance checks, prior art search, diagram generation. GPU-accelerated with…

    PythonLicense: MIT
    • bigquery
    • claude-code
    • claude-code-plugin
    • faiss
    • mcp-server

    githubmeasured growthOpen source ↗

    178GitHub stars+2 (+1.1 %)

Learning resources

Ranked by measured growth, normalized across sources. These resources remain available separately and do not take part in the main tool ranking.

  1. 1

    agent-systems-handbook

    Agent
    ActiveOpen source ↗

    A practical AI agents handbook covering agent systems, agentic workflows, LangGraph, MCP/A2A, context engineering, agent memory, evaluation, observability, and multi-agent architecture. Current trend focus: Gemini Interactions API and…

    MDX
    • a2a
    • agent-framework
    • agent-memory
    • agentic-ai
    • agentic-workflow
    githubResourcemeasured growth
    316GitHub stars+3 (+0.96 %)
  2. 2

    lit-review-agent-tools

    MCP
    ActiveOpen source ↗

    🤖 The strongest curated list of open-source AI-agent tools for literature review — 70+ tools across 11 categories (Claude Code skills, deep research, MCP servers, PDF parsing, systematic review). 面向智能体文献综述的最强工具大全。

    PythonLicense: CC0-1.0
    • academic-research
    • ai-agents
    • awesome
    • awesome-list
    • claude-code
    githubResourcemeasured growth
    16GitHub stars+3 (+23.1 %)