The open platform for agent constructs
Build better agents,
together.
The building blocks of great AI agents. Personas, skills, soul files, and decision frameworks.
Explore Constructs
Publish Yours
The open platform for agent constructs
Build better agents,
together.
The building blocks of great AI agents. Personas, skills, soul files, and decision frameworks – forkable and built for Claude Code, Cursor, and any agentic harness.
Personas
Who your agent becomes
CEO Reviewer
1curator
Founder-grade plan review with three declared modes - expand the scope, hold it with maximum rigor, or cut to the surgic...
planningreviewleadership
Deep Research Soul
1curator
A verification-first research agent that triangulates independent sources, labels every claim's confidence, and treats '...
researchverificationanalysis
Minimal API Designer
1curator
API design construct focused on simplicity
apidesign
Skills
What your agent knows how to do
QA + Fix Engineer
1curator
Indexed reference to gstack's /qa command: An early condensed index entry for gstack's browser-driven QA-and-fix motion.
qatestingthird-party
Design Auditor
1curator
Indexed reference to gstack's /plan-design-review command: An early condensed index entry for gstack's design review mot...
designreviewaccessibility
Paranoid Staff Engineer
1curator
Indexed reference to gstack's /review command: An early condensed index entry for gstack's production-paranoid code revi...
reviewthird-partyreference
Agents
Recommended agents right now
Claude Code
Usage-basedAnthropic's command-line coding agent that works across your codebase from the terminal.
Cursor
FreemiumAI code editor with an agent that plans and edits across your whole codebase.
Devin
Usage-basedAutonomous software-engineering agent that plans, codes, and ships tasks end to end.
Manus
FreemiumGeneral-purpose autonomous agent for multi-step web, research, and computer tasks.
Lovable
FreemiumPrompt-to-app agent that builds and deploys full-stack web apps.
v0
FreemiumVercel's agent for generating UI and shipping full-stack apps from prompts.
Org Charts
How AI-native companies are staffed
design team
The Enterprise Design Org
United States edition. What the startup design team becomes at a company of thousands: a ~65-person function led through directors, with a dedicated design systems team, research as an institution, content design at scale, and DesignOps running the operating system. The grown-up sibling of The High-Growth Startup Design Team.
6 departments
Agency
The Design Agency
United States edition. The independent creative agency at ~25 people: a creative department under one demanding creative director, client services running the relationships and the margin, strategy giving the work its argument, and production keeping promises survivable. The external counterpart to the in-house design org charts.
5 departments
design team
The High-Growth Startup Design Team
United States edition. The design org inside an ~80-person Series B startup: seven people built on published ratios - one designer per ~5 engineers (the design-led end of the range), one researcher per 4-5 designers, the design system owned fractionally by a senior designer. Embedded in squads, managed centrally. DesignOps and a dedicated systems team come later; a content designer is the next hire.
5 departments
How It Works
Find, install, remix
01
Find
Browse constructs by category, or search by tag. Each construct is a complete agent definition – a persona, skill, soul file, or decision framework.
02
Install
Ask your agent to fetch the raw URL. It returns plain text that any LLM can ingest directly.
constructs.sh/author/name/raw
03
Fork & Remix
Fork any construct, adapt it to your workflow, and publish your version. Community improvements flow back via stars and forks.
Agent in Action
Senior Code Reviewer Agent
Production-grade code review persona
Senior Code Reviewer Agent You are a senior staff engineer performing a production code review. You have 15 years of experience shipping payment systems, SaaS platforms, and high-traffic APIs. You've…
View construct →Featured Writing
The ideas behind constructs
March 2026
What Are AI Agent Constructs?
From prompts to constructs - why the building blocks of AI agents needed a better abstraction, and what that means for developers.
March 2026
Agents, Constructs, and the Words Between
Where does an agent end and a construct begin? A deep exploration of the terminology, philosophy, and component model of AI agents.
April 2026
The Cambrian Explosion of Instruction Files
Every AI coding tool reads a markdown file from your repo, and none agree on what to call it. A field guide to SKILL.md, SOUL.md, CLAUDE.md, AGENTS.md, and the ecosystem taking shape.
Docs
Everything you need to ship constructs
A construct is plain text any agent can fetch from a raw URL. The docs cover how to use one, the supported formats, publishing and forking, licensing, and which harnesses they work with.
Read the docs →Works With
Claude Code
Cursor
Windsurf
Cline
Aider
Any LLM Agent
Frequently Asked
The Basics
A construct is a portable, plain-text definition that shapes an agent's behavior - a persona, a skill, a soul file, or a decision framework. Every construct is forkable and gets a raw URL that any LLM can fetch directly.
Your best agents deserve a community.
Publish constructs as markdown, YAML, or JSON. Fork and improve others' work. Every construct gets a raw URL that any agent can fetch.
Free and open · No API keys · No vendor lock-in