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CrewAI Framework

⬢ 層級 2技術
高
薪資影響
2 個月
學習時長
困難
難度
3
職業
一覽

CrewAI is a framework for orchestrating AI agents into teams. Each agent has a role, goal, backstory, and access to tools. Agents communicate, delegate, and iterate to solve complex problems. Mastery takes 4-6 weeks. Senior practitioners earn 25-35% premium because they ship agent systems that replace 3-5 full-time roles. Becoming one of the 2% who can design agent hierarchies is a scaling advantage.

什麼是 CrewAI Framework

CrewAI is an open-source Python framework for building systems of collaborating AI agents. Each agent is assigned a role (e.g., "Market Researcher", "Data Analyst", "Report Writer"), a goal, access to tools, and memory. Agents receive tasks, decide which tools to call, execute them, and share results with other agents. Tasks are chained, one agent's output feeds into another's input. A crew is a collection of agents working toward a shared objective. Coordination happens through message passing: Agent A completes a task and sends its results to Agent B, which reviews, asks clarifying questions if needed, and proceeds. The framework handles scheduling, memory, error recovery, and logging.

🔧 工具與生態
CrewAI frameworkLangChainClaude APIOpenAI APIAnthropic SDKPython asyncioPydanticLLM integrationsTool SDKAgent memory systemsTask orchestrationAgent logging frameworks

📋 開始之前

Python

💰 各地區薪資

地區初級中級高級
USA$85,000$145,000$220,000
UK£52,000£88,000£135,000
EU€58,000€95,000€145,000
CANADACA$90,000CA$150,000CA$230,000

❓ 常見問題

What's the difference between an agent and a tool in CrewAI?
A tool is a function (web search, calculator, database query). An agent is an LLM that decides which tools to use and in what order. A crew orchestrates multiple agents, each with its own role. Example: researcher agent (gathers data), analyst agent (interprets), writer agent (produces report). Each agent decides independently which tools to call.
How do I avoid agents getting stuck in loops?
Set max_iterations per task, use step-back prompting to rethink, and decompose goals clearly. Agent A should complete before Agent B starts. Use dependency tracking so an agent knows when upstream tasks finish. Timeout long-running tasks (30 sec max per LLM call).
When should I add memory to an agent?
Add memory if an agent needs to learn from past iterations (e.g., researcher trying multiple queries, writer revising drafts). Memory = context summary of past actions. Without it, agent repeats same tool calls. With it, agent adaptively changes approach. Adds 2-3s latency per iteration.
Can agents in a crew make decisions in parallel?
Yes if they're independent (agent A researches market, agent B researches tech simultaneously). No if one depends on output from another (agent B's analysis needs agent A's findings). Use task dependencies to declare sequencing. Parallel cuts latency 40-60%.
How do I measure if a crew is working well?
Track: (1) task success rate (completed vs errored), (2) iterations per task (should decrease over time = learning), (3) total latency (parallel faster than serial), (4) cost (tool calls + LLM tokens), (5) output quality (ground truth vs actual). Create a scorecard.
What's the right crew size?
2-5 agents is optimal. Larger crews = slower coordination, more failure points. Each agent should have 1-3 clear responsibilities. If you need 10+ agents, you may be over-engineering. Decompose into sub-crews instead (hierarchical).
How do I version agent prompts?
Store prompts in config files, never in code. Version them like you version features: v1, v1.1, v2. A/B test agent systems (same task, two different prompt versions) and measure output quality. Track which version shipped to production.

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