Building agents

harnessgrid/harnessgrid

Skill Codex

Coordinate bounded Claude implementation workers with durable authenticated A2A/LAN jobs, explicit evidence, recovery, and read-only verification.

catalystsystemslab/codex-skill-sync

Skill Codex

Simple sync flow for installed SKILL.md skills and Codex plugins. Use when the user says /skill-sync, check skills, update skills, run all skill updates, map skill repos, refresh Codex plugins, or create weekly skill maintenance.

birdilsss-byte/ai-creative-subagent-framework

Skill Claude Code

A workflow for producing AI-assisted film and video concepts with separate roles for directing, visual design, cinematography, brand review, and AI execution. It breaks a script into storyboards and develops the visual plan in stages.

theelgreco/codex-fork-tab

Skill Codex

Open an exact fork of the active Codex CLI chat in a new terminal tab while leaving the source chat open. Use when the user asks to fork, branch, duplicate, or continue the current Codex conversation in another terminal, including phrases such as “fork this into a new tab” or “open a parallel copy of this chat.”.

agenticdiagrams/skills

Plugin Claude Code

Bundles 1 skill · 172 tokens together

Author and validate .agentic.yaml files — the open schema for diagramming agentic systems (agents, tools, routers, guardrails, memory, flows, scenarios) at agenticdiagrams.com.

cpage-pivotal/claude-plugin-marketplace

Plugin Claude Code

Bundles 3 skills · 471 tokens together

Build and deploy AI agent demos on Tanzu Platform for Cloud Foundry using the Agent Buildpack and MCP Gateway. Bundles three skills: deploying agents and MCP Gateway wiring, scaffolding Spring AI MCP servers, and native agent-to-agent (A2A) communication.

Charlesaitime/claude-codex-teamwork

Skill Codex

Peer-to-peer Claude Code ⇄ Codex CLI collaboration via shared task board. Supports Default Mode (Claude plans, Codex executes) and Max Mode (parallel planning + execution).

yaxxxxo/skills

Plugin Claude Code

Bundles 1 skill · 88 tokens together

yaxxxxo-skills. Personal Claude Code skills.

JS-mark/skills

Skill Claude Code needs its repo

Multi-Agent Collaborative Pipeline for Claude Code — orchestrates 7 development phases with 6 specialized AI roles.

mastra-ai/infinite-moves

Plugin Claude Code

Bundles 1 skill, 4 commands, 2 agents · 114 tokens together

Multiple loops for infinite task generation and execution.

nagisanzenin/claude-code-skill-maker-plugin

Plugin Claude Code

Bundles 1 skill · 62 tokens together

Creates new Claude Code skills and plugins end-to-end: interviews on the idea, writes SKILL.md, packages as plugin, creates GitHub repo, and adds to your marketplace.

erenbektas/4CO-OP

Skill Claude Code

Run the 4CO-OP multi-stage coding pipeline for a feature request, including the nightly monitor window and performance logging.

cwijayasundara/claude_harness_eng_v1

Plugin Claude Code

Bundles 15 skills, 1 command, 7 agents, 5 hooks · 528 tokens together

GAN-inspired harness for autonomous long-running application development with Karpathy ratcheting, agent teams, and layered evaluation.

r2rka1/skills

Skill Claude Code

Creates a new Claude Code sub-agent (custom agent) by generating a markdown file in the .claude/agents/ directory. Triggered when the user wants to create, scaffold, or add a new agent or sub-agent.

OhadRubin/skills

Skill Claude CodeCodex

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

monocle2ai/skills

Plugin Claude Code

Bundles 2 skills · 387 tokens together

Coding agent skills for instrumenting, tracing and testing agents with Monocle. Instrument a Python agentic app, verify the traces against a good-trace rubric, and auto-create the instrumentation when it's missing or incomplete.

fmagent-project/FM-Agent-Plugin

Plugin Claude Code

Bundles 9 skills · 476 tokens together

Plugin for using FM-Agent framework with fully automated reasoning for large-scale systems.

umbraco/Umbraco-MCP-Base

Skill Claude CodeCodex needs its repo

Guide for configuring and running Umbraco MCP servers via the CLI. Use when the user wants to set up an MCP server for Claude Code, configure auth, filtering, dry-run, readonly mode, or use introspection commands to understand available tools.

AndyElessar/skills

Plugin Claude Code

Bundles 1 skill · 150 tokens together

Create, review, rewrite, and debug repository-specific agents.md, .github/agents/.md, and .agent.md files.

Bilican/skills

Plugin Claude Code

Bundles 4 skills · 225 tokens together

bilican-skills. Agent skills for real engineering, loaded by Claude Code.

gonaas/skills

Skill Claude CodeCodex

Invoke this skill immediately when the user wants to: create a new Claude Code skill for any purpose, convert a workflow or conversation into a reusable skill, edit or improve an existing skill, run evals or benchmark skill performance, compare skill versions, or optimize skill triggering. This applies whether the…

M1hairu/skills

Plugin Claude Code

Bundles 4 skills · 195 tokens together

A set of Claude Code skills for working without constant human supervision and storing shared notes in an Obsidian knowledge base.

Congee-Chem/skills

Skill Claude CodeCodex

A guided way to build a complete web application with an AI coding partner, from clarifying the idea through deployment. It covers planning, choosing tools, designing the structure, writing code in small parts, testing, review, and delivery.

bleronsh/Skills

Skill Claude CodeCodex

ITxPT specification knowledge base for the YES-EU Fleet Management Platform. Auto-loaded to provide persistent ITxPT architecture context without re-reading the 13 source PDFs each session. Covers S01 (hardware), S02 (onboard services), and S03 (back-office) from the "Linden" release.