# Protocol > Protocol is an AI engineering practice for lean B2B SaaS marketing teams. It writes a company down — positioning, voice, ICP, approved proof, and operating judgment — into a GitHub repository the company owns, then builds marketing agents and skills on top of that context which run inside the tools the team already uses. Protocol is upstream of generation, not another generator. The context repository is the product: everything a company's AI tools need in order to sound like that company and stay inside what it is cleared to claim, kept current and owned by the customer. ## Pages - [Protocol — marketing agents that know how you sell](https://www.protocolgtm.com/): What Protocol is, the agents and skills it builds, the context repository they run on, and the two-week path to a first agent. - [Agents & Skills library](https://www.protocolgtm.com/agents): The marketing agents and skills Protocol builds, filterable by funnel stage and by the app each one runs against. Agents take on recurring jobs; skills give a marketer an expert capability on demand. - [Customer stories](https://www.protocolgtm.com/case-studies): Index of Protocol customer stories, each one a named company, the agents and skills it runs, and the measured result. - [Plan your first marketing agent](https://www.protocolgtm.com/plan-your-sprint): Describe the marketing work your team wants to do more of and Protocol scopes the agent or skill that would take it on. - [Terms of Service](https://www.protocolgtm.com/terms): Protocol's terms of service. - [Privacy Policy](https://www.protocolgtm.com/privacy): How Protocol collects, uses, and retains personal data. - [Subprocessor List](https://www.protocolgtm.com/subprocessors): The third-party subprocessors Protocol uses. ## Customer stories - [How Aptible grew organic qualified signups 3.4× after publishing content with Protocol](https://www.protocolgtm.com/case-studies/aptible): Aptible (B2B SaaS · PLG · DevTools). Aptible sells infrastructure to startups that have to prove HIPAA compliance, and organic search is how those startups find them. These three numbers moved in the same quarter.