The Index
Every entry verified live, scored against the public rubric, and timestamped. Sorted by overall score, never by stars.
46 of 46 entries
A process-first skill framework for Claude Code: brainstorming, test-driven development, systematic debugging, and verification skills that…
Test harness for prompts, agents, and RAG pipelines: declarative test cases, assertions, matrix comparisons, and red-team scanning, runnable…
The most adopted graph-based agent orchestration framework: workflows as explicit state machines with checkpointing, human-in-the-loop…
An agent framework built on type validation: structured outputs, dependency injection, and tool schemas checked the way Pydantic checks…
Anthropic's first-party public skill collection: the de facto reference for SKILL.md structure, frontmatter conventions, and…
An opinionated 23-skill suite that staffs a solo developer's agent with the roles a startup would hire: CEO review, design review,…
A pytest-style LLM evaluation framework: metric classes for correctness, hallucination, RAG quality, and agent task completion, written as…
Open-source LLM engineering platform: tracing, evals, prompt management, and metrics for agent systems. The observability layer most stacks…
Browser automation as agent tools, built on Playwright's accessibility tree rather than screenshots: structured, deterministic web…
The reference implementations of the Model Context Protocol: the official server collection that defines what a well-built agent tool looks…
An MCP server that feeds agents current, version-specific library documentation at generation time, attacking the stale-training-data class…
OpenAI's first-party multi-agent framework: agents, handoffs, guardrails, and tracing in a deliberately small API surface.
GitHub's official MCP server: repos, issues, PRs, actions, and code scanning exposed as agent tools with GitHub's own auth and permission…
A universal memory layer for AI agents: extraction, storage, and retrieval of user and session memories with SDKs across the major agent…
Google's Agent Development Kit: code-first agent construction with built-in evaluation tooling and deployment paths into the Google Cloud…
140 domain skills plus 100+ database connectors that turn a coding agent into a working research assistant for biology, chemistry, medicine,…
A platform for stateful agents with self-editing memory, descended from the MemGPT research line: agents manage their own memory blocks…
An MCP toolkit that gives coding agents semantic code retrieval and editing: language-server-grade symbol operations instead of…
Input/output guarding for LLM applications: validator library plus enforcement framework, with correction strategies when checks fail.
Role-based multi-agent orchestration: crews of agents with roles, goals, and tasks, optimized for approachability over control-flow…
Microsoft's agentic programming framework: conversation-based multi-agent patterns from the original research lineage, in transition toward…
A CLI for configuring Claude Code: install commands, agents, hooks, and settings from a large template catalog, plus usage monitoring.
A temporal knowledge-graph memory layer for agents: facts extracted from conversations with validity intervals, so recall can answer what…
An open-source memory platform that builds knowledge graphs plus embeddings from agent data, aiming at reasoning-grade recall rather than…
A multi-harness plugin marketplace of role-specialized subagents (reviewer, architect, security, docs) installable across Claude Code, Codex…
Local-first agent memory over plain Markdown files with an MCP interface: knowledge persists as human-readable notes the agent reads and…
An AI task-management loop that decomposes a spec into ordered, dependency-aware tasks and drives an agent through them one at a time across…
GitHub's first-party collection of Copilot customizations: instruction files, agent definitions, skills, and chat modes,…
A large library of named, reusable prompt patterns with a CLI for piping content through them. Prompt-layer infrastructure: patterns without…
OpenAI's original eval framework and benchmark registry. Historically foundational; maintenance has visibly slowed as evaluation moved into…
A security toolkit for LLM interactions: scanners for prompt injection, PII, toxicity, and secrets, applied to inputs and outputs.
A configuration framework layering specialized commands and cognitive personas onto Claude Code: an opinionated operating mode rather than a…
A defense-tech company's internally-maintained skill set, published. Notable for governance discipline: explicit boundaries, scripts treated…
100+ role-specialized Claude Code subagent definitions, consistently formatted, spanning engineering, review, security, and content roles.
Spec-driven development workflow for Claude Code: requirements, design, tasks, and implementation as gated phases with approval between…
A minimal three-file task loop for AI dev agents: create a PRD, generate a task list, then execute one task at a time with human check-ins.
A Claude-specific aggregator of skills, resources, and tooling. Partially scored: staleness at fetch time left several rubric dimensions…
A single CLAUDE.md distilling Andrej Karpathy's public observations on LLM coding pitfalls into instruction-file rules. An instruction set,…
A hand-picked aggregator of Claude Code resources: skills, commands, CLAUDE.md files, and tooling. More curation voice than most lists, same…
The largest MCP server aggregator: thousands of community servers organized by category. A discovery surface for the tool layer, with…
A structured slash-command set for Claude Code covering development workflows: review, test, deploy, and project-management commands with…
The largest collection of Cursor rules files, organized by framework and stack. A discovery source for instruction-file patterns rather than…
A 1000+ entry aggregator of agent skills across Claude Code, Codex, Gemini CLI, and Cursor. Wide coverage, minimal curation signal.
A curated collection of Cursor rules in the modern .mdc format, organized by library and framework. The .mdc counterpart to the older…
A well-regarded collection of rules and knowledge files for Claude Code and Cursor. Archived by its maintainer in 2026; indexed with a…
An early custom-subagent collection for Claude Code, archived by its maintainer in 2025. Indexed with a deprecation warning as format…