Building agents

38,013 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

ReAct Agent

1105

peterfei/ifai

Agent Claude Code

A reasoning agent that works through a problem by repeating three steps: think, act, and observe the result.

not rated 99 +1 3mo ago A 26 tokens

aai-gateway

1106

gybob/aai-gateway

MCP server Claude CodeCodexCursor +2

Unified MCP & Skill management gateway, shared across AI agents, 99% context token savings. Runs locally from the aai-gateway npm package.

not rated 99 1mo ago A tokens not measured original Apache-2.0

reflectworld-percept

1107

addxai/ReflectWorld

Skill Claude CodeCodex

Perception automatically analyzes video segments from Eye using cloud VLM (Gemini). Working Memory tracks cross-segment event context. Results flow to ReflectWorld (storage) and Act (rules) via PostProcessor — all automatic.

not rated 99 +1 1mo ago A SkillSpector: pass 0 tokens original Apache-2.0

harness-engineering-zh

1108

10xChengTu/harness-engineering

Skill Claude CodeCodex

A Chinese-language guide to preparing software projects for reliable work by coding agents. It covers project instructions, documentation, code checks, tests for agent output, prompts, and ways to coordinate multiple agents.

not rated 99 +1 1mo ago A 231 tokens

ai-adoption

1109

techwolf-ai/ai-first-toolkit

Plugin Claude Code

Bundles 2 skills · 246 tokens together

AI Adoption, three skills for working with your Claude history. token-doctor diagnoses where your Claude Code + Cowork spend goes (length distribution, marathon share, cache rebuilds, per-project health), writes a doctor-style terminal report, and optionally fans out parallel Haiku subagents over your top sessions for.

not rated 99 +1 2mo ago A tokens not measured original MIT

expert-agent-manager

1110

open-octo/octo-agent

Skill Claude CodeCodex

Manage octo's agent profiles through conversation — create, modify, delete, list, and bind agents to IM chats by calling REST APIs. This skill is exclusive to the Default Agent (full-access). Use when the user wants to manage agents conversationally, e.g. "create a code review agent", "list all agents", "bind agent X…

not rated 99 +3 changed 9d ago A SkillSpector: warn 121 tokens original MIT

pai-guide

1112

kawayiYokami/P-ai

Skill Claude CodeCodex

A guide to the concepts and capabilities of the PAI assistant application.

not rated 99 2d ago A 101 tokens GPL-3.0

deepseek-worker-mcp

1113

louchi1984-coder/deepseek-claude-code-worker-mcp

MCP server Claude CodeCodexCursor +2

MCP server "deepseek-worker-mcp" as configured in louchi1984-coder/deepseek-claude-code-worker-mcp. Runs locally from the deepseek-worker-mcp npm package.

not rated 99 3mo ago A tokens not measured original MIT

ncp

1114

portel-dev/ncp

MCP server Claude CodeCodexCursor +2

N-to-1 MCP Orchestration. Unified gateway for multiple MCP servers with intelligent tool discovery. Runs locally from the @portel/ncp npm package. Needs 3 environment variables to run.

not rated 98 3mo ago A tokens not measured

sub-agents-mcp

1115

shinpr/sub-agents-mcp

MCP server Claude CodeCodexCursor +2

MCP server for AI sub-agent delegation across Cursor, Claude, Codex, Gemini, and GLM. Runs locally from the sub-agents-mcp npm package. Needs 10 environment variables to run.

not rated 98 +2 2d ago A tokens not measured original MIT

Szotasz/marveen

Skill Claude CodeCodex

AI fleet project execution (orchestrator=PM, marketing agent, backend dev agent, video agent). Fast-iteration architecture pivots and inter-agent task delegation across multi-hour sessions. Use when a user assigns a multi-agent project with "take it as a team" instruction.

not rated 100 today A SkillSpector: warn 63 tokens original MIT

codex

1117

oil-oil/codex

Skill Claude CodeCodex

A tool that delegates coding, codebase exploration, implementation, review, and verification work to a persistent Codex CLI agent. It is intended for requests that explicitly ask Codex to act or continue an existing Codex task.

not rated 98 +2 changed 2d ago A 58 tokens

megaplan

1118

peteromallet/Arnold

Skill Claude CodeCodex

AI agent harness for coordinating Claude and GPT to make and execute extremely robust plans.

not rated 98 5d ago A 20 tokens

claudekit

1119

duthaho/claudekit

Plugin Claude Code

Bundles 15 skills, 8 agents · 2,737 tokens together

Verification-first engineering toolkit for Claude Code. 15 skills across a 5-phase spine (Investigate → Design → Implement → Verify → Ship), 8 specialist agents, an interactive setup wizard. Every skill has rationalizations + evidence requirements. Built for senior ICs and tech leads.

not rated 97 1mo ago A tokens not measured original MIT

kyoko-instrument

1120

kayba-ai/Kyoko

Skill Claude Code

Wire an AI agent's telemetry into Kyoko and prove one real run shows up.

not rated 97 3mo ago A 22 tokens original Apache-2.0

frmoretto/stream-coding

Plugin Claude Code

Documentation-first development methodology. AI-ready docs = automatic code generation. 10-20x velocity.

not rated 97 +1 6mo ago A tokens not measured

Skill Development

1122

deancourse/git-worktree-demo

Skill Claude CodeCodex

This skill should be used when the user wants to "create a skill", "add a skill to plugin", "write a new skill", "improve skill description", "organize skill content", or needs guidance on skill structure, progressive disclosure, or skill development best practices for Claude Code plugins.

not rated 98 +1 6mo ago A 63 tokens

karpathy-skills

1123

LearnPrompt/andrej-karpathy-skills

Plugin Claude Code

Bundles 15 skills · 1,637 tokens together

14 Karpathy-inspired working methods + 1 methodology router, distilled from his 2023-2026 public X posts and Gists into executable agent skills: agentic-engineering, vibe-to-agentic, autoresearch, llm-simulator, llm-wiki, minimalism, supply-chain-hygiene, understanding-first, idea-files, output-evolution…

not rated 98 +2 2mo ago A tokens not measured original MIT

keep-mcp-pipx

1124

feuerdev/keep-mcp

MCP server Cursor

MCP server "keep-mcp-pipx" as configured in feuerdev/keep-mcp. Launched with pipx run --no-cache --spec . mcp. Needs 3 environment variables to run.

not rated 100 +3 3d ago A tokens not measured original MIT

codex-collab

1125

Kevin7Qi/codex-collab

Skill Codex

Use when the user asks to invoke, delegate to, or collaborate with Codex on any task. Also use PROACTIVELY when an independent, non-Claude perspective from Codex would add value — second opinions on code, plans, architecture, or design decisions.

not rated 96 +1 changed today D 59 tokens original MIT

claude-api

1126

OrcaWhisper/Claude-Code

Skill Claude CodeCodex

Use this skill when the user is building against Anthropic APIs or SDKs, including @anthropic-ai/sdk, anthropic, or Agent SDK integrations.

not rated 96 +2 5mo ago A 0 tokens

context-degradation

1127

agent-skills-hub/agent-skills-hub

Skill Claude CodeCodex

Recognize patterns of context failure: lost-in-middle, poisoning, distraction, and clash.

not rated 97 +2 18d ago A SkillSpector: pass 21 tokens original MIT

codex-agent

1128

ThendCN/ai-team-skills

Skill Claude CodeCodex

A Codex-based coding agent for implementing features, fixing bugs, refactoring code, testing, and reviewing changes.

not rated 95 6mo ago A 75 tokens

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: