Using a Skill File to Get Better Results from Vector MCP

Why this article exists

Vector MCP gives your AI agent access to your data. A skill file gives your AI agent context about you — how you think about advertising, what your strategy looks like, and how you want it to use Vector's data on your behalf.

It's an optional step, but it's the difference between an AI that knows your data and an AI that actually thinks the way you do about it. For most users, that translates directly to better answers, less prompt-tweaking, and faster time-to-insight.

What a skill file actually is

A skill file is a small set of instructions you give your AI platform that describes your strategy and preferences. When you ask Vector MCP a question, your AI references the skill file alongside the underlying data — so its response reflects not just what's in your account, but how you want it interpreted.

For example, with a skill file in place, your AI knows:

• What success looks like for your campaigns (CPL targets, pacing thresholds, ICP definitions).

• Which segments or accounts matter most to your business.

• How you typically frame reports — bullet points vs. narrative, specific KPIs you always want surfaced, formatting preferences for exec readouts.

• What not to flag (e.g., known low-priority campaigns that shouldn't trigger alerts).

Why this matters: Without a skill file, your AI is responding as a generalist — accurate, but generic. With a skill file, it's responding as someone who understands your account the way you do. That shift is what separates "a tool that pulls data" from "a tool that thinks alongside you."

Is it required?

No. Vector MCP works without a skill file, and you'll still get real value from it — pacing checks, visitor lookups, creative performance, all of that runs fine on the default setup.

But it's strongly recommended. Users who skip the skill file tend to spend more time refining prompts and correcting context in follow-up questions. Users who install one spend less time prompting and more time acting on what they get back. If you're going to use MCP regularly, the ten minutes spent installing a skill file pays for itself within the first week.

Step 1: Download the skill file

Log into Vector and head to the same MCP page where you originally copied your MCP server URL. The skill file lives in the same place — just download it from there.

Why this matters: Co-locating the skill file with the MCP setup means there's one canonical place to grab everything you need. If we update the skill file (which we do periodically as Vector's capabilities expand), the latest version will always be on that page.

Step 2: Add the skill file to Claude

Once downloaded, here's how to install it in Claude:

1. Open Claude and head to Skills.

2. Click the + icon.

3. Select Create a skill.

4. Upload the file you downloaded from Vector.

That's it. Claude will reference the skill file automatically the next time you query Vector MCP.

Why this matters: You only have to do this once. The skill file persists across conversations, so every future MCP query benefits from it without any extra prompting on your part.

What changes after you install it

You'll likely notice three things:

Answers feel more "in context." Instead of generic responses, you'll see your AI reference your specific ICP, campaign naming conventions, or KPI thresholds without being told.

You write shorter prompts. Questions you used to phrase carefully ("Show me LinkedIn pacing for our enterprise ABM campaigns, comparing against our $300 CPL target...") become quicker ("How's enterprise ABM pacing?").

Scheduled tasks get sharper. If you've already set up recurring tasks (covered in our [Getting the Most Out of Vector MCP guide]), they'll automatically benefit from the skill file's context — meaning your weekly reports start filtering out noise and surfacing what actually matters to you.

Why this matters: The skill file is one of the highest-leverage things you can do to make MCP feel personalized to your workflow. It's the difference between an AI that responds to questions and one that anticipates them.

What's next

Once your skill file is installed, the natural next move is to start using MCP on the work you actually do every week — pacing checks, campaign reviews, board prep, creative diagnostics. The combination of MCP plus a skill file is when most teams say it finally "clicks."

If you haven't already, take a look at our [Getting the Most Out of Vector MCP guide] for the maturity model — simple questions, scheduled tasks, and advanced automations — that helps you grow into the platform over time.

Questions or want help building a skill file tailored to your team's strategy? Reach out to your CSM or support@vector.co — we're happy to help you draft one.