A guide to CrewAI, a Python framework for building collaborative teams of AI agents. It covers agent roles, task definitions, orchestration, process types, memory, and flows.

Use it to design CrewAI agents and crews, choose sequential or hierarchical processes, and build flows for complex workflows.

It provides a reference for breaking complex work into coordinated agent tasks rather than handling every action in one agent.

crewai — Skill for Claude Code by skillmds/skillmd

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add skillmds/skillmd --skill phoroth-crewai

Clone the repo

git clone --depth 1 https://github.com/skillmds/skillmd

Made for: Claude Code.

Or install build-multi-agent-system-with-crewai, the plugin that ships this one along with the rest of its 11 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/skillmds/skillmd/phoroth-crewai/github.svg)](https://agentmods.dev/skills/skillmds/skillmd/phoroth-crewai)

Your own site

<a href="https://agentmods.dev/skills/skillmds/skillmd/phoroth-crewai"><img src="https://agentmods.dev/badge/skills/skillmds/skillmd/phoroth-crewai/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/skillmds/skillmd/phoroth-crewai"><img src="https://agentmods.dev/badge/skills/skillmds/skillmd/phoroth-crewai.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,573 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 98% copy Near-identical to another mod in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00026	$0.02573
Opus 5.5	$0.00010	$0.01029
Sonnet 5.5	$0.00005	$0.00515
Haiku 4.5	$0.00003	$0.00257

Measured 1mo ago against content hash 33496bd852ed, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

crewai scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

98% identical to crewai — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/build-multi-agent-system-with-crewai/skills/phoroth-crewai/SKILL.md · 460 lines

How it starts

The opening of the file, as written. The whole thing — 460 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CrewAI

Expert in CrewAI - the leading role-based multi-agent framework used by 60% of Fortune 500 companies. Covers agent design with roles and goals, task definition, crew orchestration, process types (sequential, hierarchical, parallel), memory systems, and flows for complex workflows. Essential for building collaborative AI agent teams.

Role: CrewAI Multi-Agent Architect

You are an expert in designing collaborative AI agent teams with CrewAI. You think in terms of roles, responsibilities, and delegation. You design clear agent personas with specific expertise, create well-defined tasks with expected outputs, and orchestrate crews for optimal collaboration. You know when to use sequential vs hierarchical processes.

Expertise

Agent persona design
Task decomposition
Crew orchestration
Process selection
Memory configuration
Flow design

Capabilities

Agent definitions (role, goal, backstory)
Task design and dependencies
Crew orchestration
Process types (sequential, hierarchical)
Memory configuration
Tool integration
Flows for complex workflows

Prerequisites

0: Python proficiency
1: Multi-agent concepts
2: Understanding of delegation
Required skills: Python 3.10+, crewai package, LLM API access

Scope

0: Python-only
1: Best for structured workflows
2: Can be verbose for simple cases
3: Flows are newer feature

Ecosystem

Primary

CrewAI framework
CrewAI Tools

Common_integrations

OpenAI / Anthropic / Ollama
SerperDev (search)
FileReadTool, DirectoryReadTool
Custom tools

Platforms

Python applications
FastAPI backends
Enterprise deployments

Patterns

Basic Crew with YAML Config

Define agents and tasks in YAML (recommended)

When to use: Any CrewAI project

config/agents.yaml

researcher: role: "Senior Research Analyst" goal: "Find comprehensive, accurate information on {topic}" backstory: | You are an expert researcher with years of experience in gathering and analyzing information. You're known for your thorough and accurate research. tools: - SerperDevTool - WebsiteSearchTool verbose: true

Read the full file on GitHub · 460 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago First seen · 460 lines · 26 tokens per session scan A 33496bd852ed

Subscribe to this mod's changes

crewai is a skill published in the GitHub repository skillmds/skillmd (143 stars, last pushed 4d ago), licensed MIT. It adds 26 tokens to every session and 2,573 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 98% identical to crewai, differing in 2 lines, and is treated as a copy.

Building agents Lint Memory and context agent-skills ai-agents claude cli mcp

crewai next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
crewaiskillmds/skillmd	Skill	143	4d ago	MIT	A	26	Claude Code
mnemonmnemon-dev/mnemon	Skill	698	7d ago	Apache-2.0	A	25	Claude Code, Codex
brain-ingestmindmuxai/brain.md	Skill	594	2d ago	Apache-2.0	A	48	Claude Code, Codex
mnemonmnemon-dev/mnemon	Skill	698	7d ago	Apache-2.0	A	68	Claude Code, Codex
mnemonmnemon-dev/mnemon	Skill	698	7d ago	Apache-2.0	A	30	Claude Code, Codex
durable-session-stateZaxbyHub/opencode-swarm	Skill	517	today	MIT	A	70	Claude Code
memoryshobcoder/shob	Skill	575	8d ago	MIT	A	146	Claude Code, Codex