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AGENT SKILLS / THIRDS.AI

Agent skills library for branded PDFs and images

You can make on-brand PDFs and images with your AI agent using the nine guides in the thirds.ai skills library. Start from a designer-made template or your own design, and add your logo, colours, and fonts. Install a skill and connect your AI tool to thirds.ai, then ask it to make a client report or resize an ad for each channel. Each skill gives your agent the steps to follow and the details to check, so you can make every new version from the same branded design.

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thirds skills

Connected to thirds.ai

Use /thirds-reuse-template to make thumbnails for this week's three client videos. Use each client's colours.

Using skill/thirds-reuse-template

thirds · render× 3

  1. A video thumbnail with a big white title, a lime highlight bar for the key line, a creator on a halftone dot field, an episode tab, and a run time.
  2. The Creator video thumbnail design made for a second business, with its own details and brand.
  3. The Creator video thumbnail design made for a third business, with its own details and brand.

Three thumbnails ready to review.

Find your task

Choose a skill for the file you need

Choose the thirds.ai skill for your next task. Use the full thirds skill for your first branded file, or pick a guide for a job you repeat, such as making a certificate for every guest in a spreadsheet.

9 of 9 skills

/thirds
01 / MCP

Make branded PDFs and images

Start with a designer-made template or your own HTML. Add your logo, colours, and fonts, then ask your agent for a finished file.

skills.sh
/thirds-brand-kit
02 / MCP

Save your brand kit

Give your agent your logo, colours, and fonts once. It can use that brand kit when it makes the next client file.

skills.sh
/thirds-create-template
03 / MCP

Create an editable template

Start from a gallery design, a description, your HTML, or a picture you own. Review the draft before you save it for repeat work.

skills.sh
/thirds-reuse-template
04 / MCP

Reuse a saved template

Change the client's name, price, or photo while the layout and brand stay in place. Get a new PDF or image from the same design.

skills.sh
/thirds-batch-files
05 / MCP

Make files from a CSV

Use one saved design for a list of clients, products, or guests. Check a sample before your agent makes the full batch.

skills.sh
/thirds-image-packs
06 / MCP

Resize images for each channel

Ask for a square, story, and wide version of one branded image. Your agent checks the layout in each size before you use the pack.

skills.sh
/thirds-carousels
07 / MCP

Create a social media carousel

Pick the pages and order for a carousel. Your agent makes the slides from your design and gives you the finished files.

skills.sh
/thirds-ai-image
08 / MCP

Generate a picture for your design

Ask for a new picture to place inside a saved design. Review the picture before your agent uses it in a branded file.

skills.sh
/thirds-api-workflows
09 / API

Make files through the API

Use the REST API to fill a saved design when your app gets a new order or client. Build in safe retries and check the download.

skills.sh

Make branded PDFs and images

Start with a designer-made template or your own HTML. Add your logo, colours, and fonts, then ask your agent for a finished file.

Install this skill
npx skills add thirdsai/skills --skill thirds

Ask your agent

Use the editorial invoice template to make a PDF for Rowan Bakery. Set the total to £120 and add my logo. Show me the result before I send it.

What happens next

  1. Connect your AI tool to thirds.ai and choose a design.
  2. Give your agent the client name, price, logo, and file format.
  3. Check the finished PDF or image before you share it.
Connect your AI toolView sourceView on skills.sh

Save your brand kit

Give your agent your logo, colours, and fonts once. It can use that brand kit when it makes the next client file.

Install this skill
npx skills add thirdsai/skills --skill thirds-brand-kit

Ask your agent

Use my blue logo and these two brand colours for the new invoice design. Check that the logo looks clear in the PDF.

What happens next

  1. Share your logo and brand choices with your agent.
  2. Ask it to save and check your brand kit.
  3. Use the kit on a design and check the finished file.
Read the brand kit guideView sourceView on skills.sh

Create an editable template

Start from a gallery design, a description, your HTML, or a picture you own. Review the draft before you save it for repeat work.

Install this skill
npx skills add thirdsai/skills --skill thirds-create-template

Ask your agent

Use my cafe menu picture to make an editable menu design. Replace the old logo with mine. Let me review it before you save it.

What happens next

  1. Give your agent the source and the parts you want to change.
  2. Review a preview and ask for any layout fixes.
  3. Approve the design, then save it for your next file.
Read the design guideView sourceView on skills.sh

Reuse a saved template

Change the client's name, price, or photo while the layout and brand stay in place. Get a new PDF or image from the same design.

Install this skill
npx skills add thirdsai/skills --skill thirds-reuse-template

Ask your agent

Use my saved quote design for Pine Studio. Change the project name to Spring Window Display and the total to £840. Make a PDF for review.

What happens next

  1. Choose the saved design and share the new details.
  2. Ask your agent to make the next PDF or image.
  3. Check the names, totals, and layout in the finished file.
Read the saved design guideView sourceView on skills.sh

Make files from a CSV

Use one saved design for a list of clients, products, or guests. Check a sample before your agent makes the full batch.

Install this skill
npx skills add thirdsai/skills --skill thirds-batch-files

Ask your agent

Use my certificate design and this guest list. Make one PDF per row, check a sample, and give me the finished ZIP.

What happens next

  1. Share the saved design and your spreadsheet.
  2. Check a sample name and any rows with missing details.
  3. Download the ZIP and review the finished files.
Read the batch guideView sourceView on skills.sh

Resize images for each channel

Ask for a square, story, and wide version of one branded image. Your agent checks the layout in each size before you use the pack.

Install this skill
npx skills add thirdsai/skills --skill thirds-image-packs

Ask your agent

Use my sale image design for a square post, a story, and a wide banner. Keep the offer and logo easy to read in each size.

What happens next

  1. Choose your saved image design and the sizes you need.
  2. Review the layout in every size and fix any crop.
  3. Download the image pack and check each file.
Read the image pack guideView sourceView on skills.sh

Create a social media carousel

Pick the pages and order for a carousel. Your agent makes the slides from your design and gives you the finished files.

Install this skill
npx skills add thirdsai/skills --skill thirds-carousels

Ask your agent

Make a four-page carousel from my product launch design. Put the offer last. Keep my logo and colours on every page.

What happens next

  1. Choose the design, pages, and slide order.
  2. Ask your agent to make the carousel files.
  3. Check the order and download the slides or ZIP.
Read the carousel guideView sourceView on skills.sh

Generate a picture for your design

Ask for a new picture to place inside a saved design. Review the picture before your agent uses it in a branded file.

Install this skill
npx skills add thirdsai/skills --skill thirds-ai-image

Ask your agent

Make a warm photo-style picture of a cinnamon bun for my cafe menu. Show it to me before you place it in the design.

What happens next

  1. Describe the picture and confirm the AI request.
  2. Review the picture and ask for a change if needed.
  3. Place it in the design and check the finished file.
Read the picture guideView sourceView on skills.sh

Make files through the API

Use the REST API to fill a saved design when your app gets a new order or client. Build in safe retries and check the download.

Install this skill
npx skills add thirdsai/skills --skill thirds-api-workflows

Ask your agent

Add a step to my app that makes a PDF invoice from our saved design when an order is paid. Reuse the same request key on a retry.

What happens next

  1. Choose the saved design and map your app's order details.
  2. Call the API with a request key and wait for completion.
  3. Check the file and handle retries and download links.
Read the API workflow guideView sourceView on skills.sh

Set up your agent

Install a skill and connect thirds.ai

Install the skill in an AI tool that supports Agent Skills, then connect that tool to thirds.ai with the MCP guide. The skill gives your agent the task steps. The connection lets it use your designs and make files. The app workflow skill uses the REST API instead.

  1. Choose the skill that fits your next file.
  2. Install it in your AI tool and connect thirds.ai.
  3. Ask for a file and check the result.
Connect your AI toolRead the API guide
Install the full thirds skill
npx skills add thirdsai/skills --skill thirds

Questions about agent skills

Create your first design
What is an agent skill?

An agent skill is a guide that your AI tool can read when you give it a task. Each thirds.ai skill explains one way to make or use a branded design. You still choose what to make and check the result. Read the Agent Skills specification.

Do I need an MCP connection after I install a skill?

Yes, for the eight creation skills. The skill gives your agent instructions, and the authenticated MCP connection lets it use thirds.ai. The API workflow skill uses REST API access instead. Connect your AI tool.

Which AI tools can use these skills?

Use an AI tool that supports Agent Skills and has a thirds.ai connection guide. Check your tool's setup guide before you install. Some chat apps support the MCP connection but do not load local skills. Find your AI tool.

Can I make a PDF or image without an agent?

Yes. Pick a template, add your logo, colours, and fonts, then make a PDF or image in the editor. You can use that same design with an agent later. Explore templates.

What does it cost to make a file with an agent skill?

A verified free account gets 50 credits a month with no card. One finished PDF or image from a saved design costs one credit, and a failed file costs nothing. AI design work and AI pictures cost more. See current prices.

Agent skills

Send the right invoice to every client

Use a saved thirds.ai design for each client's invoice, so you don't send an old logo or the wrong price. Give your agent the client's details, then check the PDF before it goes out.

Create your first designExplore templates