googleworkspace/cli (binary: gws) is a first-party Rust CLI for every Workspace API, built dynamically from the Google Discovery Service, with 95 skill directories, a Gemini CLI extension, and an opt-in Model Armor integration that sanitizes API responses for prompt injection. As of 2026-06-18 the repo has 27,134 stars, 1,426 forks, 31,992 weekly npm downloads, and 30 releases from v0.4.4 to v0.22.5 — all in March 2026, with no new release tag in 11 weeks.
MIT repository (crewAIInc/crewAI) with 53,499 stars and 7,488 forks as of June 14, 2026. Crews+Flows architecture, 14.27M PyPI downloads in the last month, stable release 1.14.7 from June 11, 2026. Anonymous telemetry active by default, opt-out via OTEL_SDK_DISABLED. Risk of unpredictable token costs and autonomy without documented guardrails. Main sources: GitHub repo and docs.crewai.com.
MIT Python library (567-labs) for extracting validated JSON from any LLM via Pydantic models. 13.2k stars, 1.1k forks, v1.15.1 with Bedrock SSRF fix, support for OpenAI, Anthropic, Gemini, Cohere, Ollama, Bedrock, and 15+ other providers. v1.15.2 (May 10, 2026) adds sensitive log redaction.
The Hugging Face library for building LLM agents where actions are executable Python snippets, not JSON dictionaries. 27.8k stars, Apache 2.0, latest release v1.26.0 from May 29, 2026. Mandatory sandbox for code execution.
MIT Chinese repository (Datawhale) with 27 chapters on LangChain, LangGraph, MCP, RAG, Skills, and fine-tuning. 1,914 stars, 254 forks, two completed projects as of May 2026. Language barrier explicitly acknowledged.