Gemini

The Linux Foundation's AAIF has open-sourced goose, a general-purpose AI agent available as a desktop app, CLI tool, and API.

An open-source project on GitHub gives AI agents 818 structured cybersecurity skills across 34 security domains, mapped to 6 frameworks including MITRE ATT&CK and NIST CSF 2.0.

The GitHub trending project shanraisshan/claude-code-best-practice aggregates configuration and workflow practices for Claude Code, including subagents, commands, skills, hooks, and MCP servers, covering methodology from vibe coding to agentic engineering.

The ComposioHQ/awesome-claude-skills project on GitHub curates a list of over 1,000 production-grade Claude Skills and plugins.

VoltAgent has compiled and released a collection of over 1,000 Agent Skills from official developer teams and the community, spanning 60+ organizations including Claude, Stripe, MongoDB and OpenAI.

GitHub trending project mksglu/context-mode sandboxes tool output via an MCP server (cutting context usage by 98%), persists session memory, and enforces routing across 17 platforms via MCP and hooks.

A GitHub repo called system_prompts_leaks continuously collects the full original system prompts of major chatbots including Anthropic, OpenAI, Google, and xAI.

Egonex-AI open-sourced Understand-Anything, a multi-agent pipeline that turns codebases, knowledge bases, or documents into an interactive knowledge graph you can explore, search, and query.

The open-source project CLIProxyAPI provides OpenAI/Gemini/Claude/Grok-compatible API endpoints for multiple CLI models, with multi-account load balancing and OAuth login.

The last30days skill ships v3.11.1, merging 175 PRs since v3.3 with first-class Codex support, free arXiv/Techmeme/Digg sources, and a rebuilt X search.

The GitHub project claude-mem launches, using lifecycle hooks to capture tool-use observations, generate semantic summaries, and inject them into future sessions, giving Claude Code, OpenClaw, Codex, Gemini, Copilot, OpenCode and other agents persistent cross-session memory.

CodeGraph is a locally pre-indexed code knowledge graph that plugs into Claude Code, Codex, Cursor and other coding agents, offering semantic code retrieval over MCP and auto-syncing as code changes.