协议签订：猎头公司需要与客户签订委托合同，明确双方的权利和义务。合同中需要包括协议的有效期、服务内容、收费标准、保密协议、违约责任等内容。

Agreement signing: The headhunting company needs to sign a commission contract with the client, clarifying the rights and obligations of both parties. The contract should include the validity period of the agreement, service content, fee standards, confidentiality agreement, breach of contract liability, and other contents.

收费方式：猎头公司的收费方式通常是根据所招聘人才的年薪的一定比例来收取。合同中需要明确收费方式、收费金额和付款方式等内容。

Charging method: The charging method of headhunting companies is usually based on a certain proportion of the annual salary of the recruited talents. The contract needs to specify the charging method, charging amount, and payment method.

保密协议：猎头公司需要与客户签订保密协议，对客户提供的机密信息进行保密，确保信息不泄露给第三方。

Confidentiality Agreement: The headhunting company needs to sign a confidentiality agreement with the client to keep confidential the confidential information provided by the client and ensure that the information is not leaked to third parties.

服务内容：猎头公司的服务内容包括为客户提供招聘策略和建议、筛选和候选人、协助客户与候选人进行沟通和协商、提供入职后的咨询服务等。合同中需要明确服务内容的具体细节和质量标准。

Service Content: The services provided by headhunting companies include providing recruitment strategies and suggestions to clients, screening and recommending candidates, assisting clients in communication and negotiation with candidates, and providing post employment consulting services. The contract needs to specify the specific details and quality standards of the service content.

违约责任：如果猎头公司未按照合同约定提供服务或者出现其他违约行为，客户可以要求猎头公司承担违约责任，包括赔偿损失、支付违约金等。

Liability for breach of contract: If the headhunting company fails to provide services as agreed in the contract or engages in other breach of contract, the customer may demand that the headhunting company bear the liability for breach of contract, including compensation for losses, payment of liquidated damages, etc.

协议变更：如果协议需要变更，双方需要协商一致并签订书面变更协议。变更协议需要明确变更的内容和生效时间，并作为原合同的补充协议。

Agreement Change: If the agreement needs to be changed, both parties need to negotiate and sign a written change agreement. The change agreement needs to clarify the content and effective time of the change, and serve as a supplementary agreement to the original contract.

协议终止：如果协议需要终止，双方需要协商一致并签订书面终止协议。终止协议需要明确终止的时间、双方的权利和义务、费用结算等内容。

Termination of Agreement: If the agreement needs to be terminated, both parties need to negotiate and sign a written termination agreement. The termination of the agreement needs to specify the time of termination, the rights and obligations of both parties, and the settlement of expenses.

总之，猎头公司的协议规则是为了保障双方的权益和利益，确保服务质量和客户满意度。在签订合同时，双方需要认真阅读合同条款并协商一致，确保合同内容清晰、完整并与对方达成一致。

In short, the agreement rules of headhunting companies are aimed at safeguarding the rights and interests of both parties, ensuring service quality and customer satisfaction. When signing a contract, both parties need to carefully read the contract terms and negotiate to ensure that the contract content is clear, complete, and agreed upon with the other party.