AI agent starters · Rank #38

B

cymbal-air-toolbox-demo

Grade B: derived only from the two verdicts below. How grades work

Demo of a customer service agent (Cymbal Air) using LangGraph, Tools, and RAG to interact with Google Cloud Databases via MCP Toolbox.

Steady1 major behindFree

Why this verdict

How we check →
  • 1 commit in the last 90 days, none in the last 30. receipt ↗
  • Latest release v0.5.0, 387 days ago. receipt ↗
  • LangChain 0 declared; latest is 1 (1 major behind). receipt ↗
  • On current major: pandas, Pydantic. receipt ↗
  • Not counted in verdict: FastAPI 0 → 0, LangGraph 0 → 1. receipt ↗

Snapshot: commit 7a40521 on main, checked 2026-10-19 07:13 UTC. Receipts link to files at this exact commit.

Dependency freshness

PackageDeclaredLatestStatus
FastAPI fastapi0.118.00.146.0Behind, not counted
LangChain langchain0.3.251.4.61 major behind
LangGraph langgraph0.4.81.2.16Behind, not counted
pandas pandas3.0.03.0.6Current
Pydantic pydantic2.9.02.14.1Current

Declared = lowest version the kit's dependency file (package.json, pyproject.toml or requirements.txt) allows. Latest = the npm "latest" tag or the newest PyPI release. TypeScript, the Stripe SDK, FastAPI and other 0.x packages are shown but not counted in the verdict.

What's in the stack

Framework
FastAPI
API layer
Pydantic, Uvicorn

Detected from declared dependencies. A listed package means it's installed, not necessarily fully wired up.

What the README says you get

  • AI
    Agent-based orchestrationthe LLM acts as an intelligent Agent that decides which tools to use
  • AI
    Retrieval Augmented GenerationRAG is the concept of retrieving some data or information, augmenting your prompt
  • API
    MCP Toolbox middlewareMCP Toolbox is a middleware server that exposes the database operations as a set of tools
  • API
    Customizable toolscustomize the tools available to the agent by modifying the MCP Toolbox configuration file
  • Data
    Interchangeable databasethe database used was intentionally designed to be interchangeable
  • Data
    Database setup guidecreate your database instance, populate it with data, and create the tools.yaml configuration file
  • Deploy
    Cloud Run deploymentdeploy the Toolbox as a service on Google Cloud Run
  • Deploy
    Local Toolbox serveryou can run the Toolbox server directly from your terminal
  • Other
    Flight managementhelps travelers manage flights
  • Other
    Airport informationfind information about San Francisco International Airport (SFO)

Extracted from the kit's README by a local AI model (deepseek-flash) on Sep 29, 2026. Every item is checked against an exact README quote. A README claim is the maker's description, not something we tested.

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History

Sep 29, 2026 → Oct 19, 2026. One square per check, colored by maintenance status. Hover for details.

Show as a table
DateMaintenanceDependenciesCommits (90d)
Oct 19, 2026Steady1 major behind1
Oct 12, 2026Steady1 major behind1
Sep 29, 2026Steady1 major behind1

Sources

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