Building agents

memodb-io/Acontext

Instructions file CodexOpenCode

Instructions for memodb-io/Acontext, covering acontext, navigation guide, plan-driven development, modules and rules.

NVIDIA/Model-Optimizer

Instructions file CodexOpenCode ✓ vendor

AGENTS.md instructions for NVIDIA/Model-Optimizer, covering agent instructions for modelopt, repository orientation, coding guidelines, iterative development and contributing and pr readiness.

gotalab/cc-sdd

Skill Claude CodeCodex

Entry point for new work. Determines the best action path or work decomposition (update existing spec, create new spec, mixed decomposition, or no spec needed) and refines ideas through structured dialogue.

raullenchai/Rapid-MLX

Agent

This page renders the Tier-1 agent × model-family integration matrix truthfully from the authoritative test suite in tests/integrations/ — the matrix cells (testagentsmatrix.py), the family aliases and strict-xfail rules (conftest.py), and the pilot run recorded in tests/integrations/README.md.

microsoft/mcp

Skill Claude CodeCodex ✓ vendor

Add a new tool/command to any Azure MCP toolset. Full lifecycle from scaffolding through PR submission. USE WHEN: add new command, create tool, new MCP tool, scaffold command, implement operation, add azure service tool, create new toolset.

kagent-dev/kagent

Skill Claude CodeCodex

Development guide for kagent's v1alpha3 Harness and AgentTemplate CRDs, AgentInstance gRPC control plane, upstream A2A integration, Substrate runtime provisioning, tests, generation, and PR workflow. Use for any implementation, debugging, review, or CI task in the kagent repository.

agenticnotetaking/arscontexta

Plugin Claude Code

Bundles 26 skills, 1 agent, 2 hooks · 1,522 tokens together

Conversational derivation engine — generate agent-native memory architecture from natural conversation. 15 kernel primitives, 26 commands, 17 feature blocks, 3 presets.

SamurAIGPT/llm-wiki-agent

Instructions file CodexOpenCode

AGENTS.md instructions for SamurAIGPT/llm-wiki-agent, covering llm wiki agent — schema & workflow instructions, how to use, directory layout, page format and ingest workflow.

ProfSynapse/Professor-Synapse

Skill Claude CodeCodex

Use when user needs expert help, wants to summon a specialist, says "help me with", "I need guidance", or has a task requiring domain expertise. Creates and manages a growing collection of expert agents.

Jakubantalik/transitions.dev

Skill Claude CodeCodex

In-chat fallback for the Timeline Inspector Refine agent. Use when the user runs /refine live, asks to "refine live", "go live", or answer refine jobs — but ONLY when no persistent agent is wired (no npx transitions-refine live). Prefer npx transitions-refine live for run-and-forget (relay spawns agent per click, no…

himself65/finance-skills

Skill Claude CodeCodex

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or iterate on skill quality. Triggers: "create a skill", "make a…

google-antigravity/antigravity-sdk-python

Skill Claude CodeCodex

Design, implement, and debug autonomous AI agents and multi-agent systems using the Google Antigravity (AGY) SDK. ACTIVATE this skill when the user wants to create, configure, or orchestrate Google Antigravity agents.

openclaw/acpx

Skill Claude CodeCodex

Use acpx as a headless ACP CLI for agent-to-agent communication, including prompt/exec/sessions workflows, session scoping, queueing, permissions, output formats, system-prompt overrides, and multi-agent flows authored with defineFlow/decision/decisionEdge.

agent-of-empires/agent-of-empires

Skill Claude CodeCodex

Use when launching, monitoring, or controlling AI coding agents (Claude Code, Codex, OpenCode, etc.) in tmux via Agent of Empires (aoe). Covers creating sessions, capturing agent output, running parallel worktree agents, and organizing work into groups and profiles. Prefer aoe over raw tmux for agent management.

microsoft/amplifier

Agent ✓ vendor

You are the authoritative consultant for the complete Amplifier ecosystem. Other agents should consult you for.

stravu/crystal

Instructions file

Instructions for stravu/crystal, covering crystal - multi-session claude code manager, project overview, references, implementation status: ✅ complete and ✅ implemented features.

Forward-Future/loopy

Skill Claude CodeCodex

Compatibility alias for Loopy. Use only when an existing installation or older instruction explicitly invokes loop-library; use Loopy for new installations and requests. Provides the same discovery, recommendation, audit, repair, adaptation, guided crafting, bounded execution, run debrief, project loop saving, and…

Chachamaru127/claude-code-harness

Cursor rule Cursor

A rule encouraging agents to actively look for relevant skills and specialised subagents, which are focused helpers for independent parts of a task.

GoogleCloudPlatform/professional-services

Skill Claude CodeCodex

This skill should be used when the user wants to evaluate an AI agent end-to-end: scaffold an evaluation, design metrics that test a real hypothesis, make an agent measurable, audit generated eval config, read evaluation results, or run an improvement ("hill climbing") loop. Covers evaluation methodology, metric…

KhazP/vibe-coding-prompt-template

Skill Claude CodeCodex

Generate AGENTS.md and AI configuration files for your project. Use when the user wants to create agent instructions, set up AI configs, or says "create AGENTS.md", "configure my AI assistant", or "generate agent files".

Alpha-Dojo/DojoAgents

Instructions file CodexOpenCode

AGENTS.md instructions for Alpha-Dojo/DojoAgents, covering repository agent instructions, non-negotiable local rules, 1. high-level mental map, core purpose and primary tech stack.

michaelshimeles/ralphy

Instructions file

Claude Code instructions for michaelshimeles/ralphy, covering claude code guidelines for ralphy, code change philosophy, keep changes small and focused, task prioritization and code quality standards.

letta-ai/claude-subconscious

Plugin Claude Code

Bundles 4 hooks

A subconscious for Claude Code. A Letta agent watches your sessions, accumulates context, and whispers guidance back.

VRSEN/OpenSwarm

Command Cursor

Your task is to add Model Context Protocol (MCP) server to an Agency Swarm agent. MCP servers expose external tools and data sources to agents through a standardized protocol.