Building agents

40,000 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.

agent-lightning

49

microsoft/agent-lightning

Plugin Claude Code ✓ vendor

Bundles 1 skill · 43 tokens together

Turns coding agents into agent optimizers that improve accuracy, cost, latency, and reliability against a benchmark.

not rated 19k +53 5d ago A tokens not measured original MIT

skillopt-sleep

50

microsoft/SkillOpt

Skill Claude CodeCodex ✓ vendor

Reference-only OpenClaw adaptation of SkillOpt-Sleep. Use it to study or port the contributed DeepSeek wrapper, not as a ready-to-run installation.

not rated 19k +130 yesterday A SkillSpector: pass 37 tokens original MIT

ocx

52

lidge-jun/opencodex

Skill Claude CodeCodex

Operate opencodex (ocx): discover CLI tasks offline, inspect local configuration, and manage a running proxy’s account pool, providers, models, routing, usage report, and management API. Use for proxy operation rather than editing the opencodex codebase.

not rated 18k +301 changed 19d ago A SkillSpector: pass 59 tokens original MIT

rocketride-org/rocketride-server

Skill Claude CodeCodex needs its repo

Use when asked to build, run, or validate a RocketRide pipeline (e.g. "build me a chatbot that answers from my docs", "make a pipeline that summarizes uploaded PDFs", "run this pipeline"), or whenever turning a plain-language data/AI task into a working RocketRide pipeline.

not rated 18k +42 today A 66 tokens original MIT

mcp-builder

54

HKUDS/DeepCode

Skill Claude CodeCodex

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

not rated 17k +26 2d ago A SkillSpector: warn 61 tokens original MIT

skill-builder

55

yusufkaraaslan/Skill_Seekers

Skill Claude CodeCodex

Automatically detect source types and build AI skills using Skill Seekers. Use when the user wants to create skills from documentation, repos, PDFs, videos, or other knowledge sources.

not rated 15k +39 24d ago A SkillSpector: pass 38 tokens original MIT

trellis-meta

56

mindfold-ai/Trellis

Skill Claude CodeCodex

Understand and customize the local Trellis architecture inside a user project. Use when modifying .trellis plus platform hooks, settings, agents, skills, commands, prompts, workflows, the channel runtime (trellis channel), bundled runtime agents under .trellis/agents/, selectable workflow templates, registry-backed…

not rated 15k +46 25d ago A SkillSpector: warn 110 tokens AGPL-3.0

coleam00/context-engineering-intro

Agent Claude Code

Dependency and configuration specialist for Pydantic AI agents. USE AUTOMATICALLY after requirements planning to set up agent dependencies, environment variables, model providers, and agent initialization. Creates settings.py, providers.py, and agent.py files.

not rated 14k +5 7mo ago A 54 tokens original MIT

modelcontextprotocol/typescript-sdk

Skill Claude CodeCodex ✓ vendor

Upgrades TypeScript code from v1 of the MCP TypeScript SDK (@modelcontextprotocol/sdk) to v2 (@modelcontextprotocol/client, /server, /core and the middleware packages): runs the official codemod, then works through what it cannot rewrite. Use whenever a project depends on @modelcontextprotocol/sdk and the user wants…

not rated 14k +40 changed yesterday A 159 tokens

ida-pro-mcp

59

mrexodia/ida-pro-mcp

Plugin Claude Code

Bundles 1 skill · 77 tokens together

AI-powered reverse engineering assistant that bridges IDA Pro with language models through MCP.

not rated 13k +136 28d ago A tokens not measured original MIT

stdio-full

60

apify/apify-mcp-server

MCP server Claude CodeCodexCursor +2

One of 3 in .mcp.json

MCP server "stdio-full" as configured in apify/apify-mcp-server. Runs dist/stdio.js with node. Needs 2 environment variables to run.

not rated 13k +1.1k changed 1mo ago A tokens not measured original MIT

app-builder-sdk

61

holaboss-ai/holaOS

Skill Claude CodeCodex

Build a new holaOS app using @holaboss/app-builder-sdk (5 backend primitives + optional shadcn dashboard UI). The canonical path for vibe-coded apps — integration modules AND dashboard apps both live here.

not rated 11k +39 today A SkillSpector: warn 47 tokens

free-llm-apis

62

mnfst/awesome-free-llm-apis

Skill Claude CodeCodex

Guide users through obtaining and configuring free API keys for LLM providers. Use when the user wants to set up a free LLM API, get a free API key, connect to a free model provider, configure an OpenAI-compatible endpoint at no cost, or asks about free tiers for AI models. Triggers on "free API key", "free LLM", "set…

not rated 11k +583 changed yesterday A SkillSpector: pass 116 tokens original CC0-1.0

mcpdo

63

modelcontextprotocol/inspector

Skill Claude Code ✓ vendor

Access MCP (Model Context Protocol) servers and their tools, resources, and prompts through the mcpdo CLI — connections it holds extend your capabilities alongside any built-in MCP support. Use this skill for any question or task about MCP servers, connections, or tools (e.g. "what MCP servers am I connected to?"…

not rated 11k +46 today A 105 tokens

gsd-core

64

open-gsd/gsd-core

Plugin Claude Code

Bundles 72 skills, 64 agents, 7 hooks · 4,355 tokens together

GSD Core is a meta-prompting, context engineering, and spec-driven development system for AI coding agents.

not rated 11k +181 changed yesterday A tokens not measured original MIT

my-first-skill

65

numman-ali/openskills

Skill Claude CodeCodex

Example skill demonstrating Anthropic SKILL.md format. Load when learning to create skills or testing the OpenSkills loader.

not rated 11k +27 9mo ago A 28 tokens

clonedeps

66

alvinunreal/oh-my-opencode-slim

Skill Claude CodeCodex

Clone important project dependency source code into an ignored local workspace so OpenCode can inspect library internals. Use when the user asks to clone dependencies, inspect dependency/source internals, understand SDK/framework behavior from source, debug library implementation details, or make core dependency repos…

not rated 9.8k +166 changed 8d ago A SkillSpector: pass 75 tokens original MIT

plugin-development

67

higress-group/higress

Cursor rule Cursor

Plugin Development Standards - Applies to all new wasm and golang-filter plugins.

not rated 9.6k +43 2d ago A 0 tokens original Apache-2.0

pacifio/atlas

Skill Claude CodeCodex

Inspect and safely update Atlas user preferences through Atlas's config.toml.

not rated 9.5k +92 changed 2d ago A SkillSpector: warn 19 tokens original Apache-2.0

harness

70

revfactory/harness

Plugin Claude Code

Bundles 2 skills · 368 tokens together

The team-architecture factory for Claude Code v2 — a meta-skill that turns a domain description into an agent team and the skills they use. Three native execution modes (Workflow orchestration, persistent named-agent collaboration, sub-agent delegation), six team-architecture patterns, and workflow-native quality…

not rated 9.3k +50 changed 28d ago A tokens not measured original Apache-2.0

astron-workflow-dsl

72

iflytek/astron-agent

Skill Claude CodeCodex

A workflow-file guide for turning plain-language business requirements into YAML files that Astron Agent can import. YAML is a text format for structured configuration, and these files describe steps, conditions, connections, variables, and resource bindings.

not rated 8.9k +11 2d ago A 91 tokens original Apache-2.0

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: