Agent skills
Agent Skills are folders of instructions an AI agent loads when a task calls for them. bannx publishes a set your agent can install in one command:
- Connected skills teach the agent to do real work in your space through the MCP server: build templates, render them at scale, keep them on brand. They need a bannx API key.
- Standalone skills are design craft. They work with any renderer — HTML/CSS, Figma, an image model — and need no bannx account.
Install
With the open-source skills installer (it detects Claude Code, Codex, Cursor and other agents and asks where to install):
npx skills add https://bannx.com
It reads the discovery index at /.well-known/agent-skills/index.json, lists the skills, and verifies each download against its SHA-256 digest.
To install one by hand, download its archive (/.well-known/agent-skills/<name>.zip) or its SKILL.md (/.well-known/agent-skills/<name>/SKILL.md) and unpack it into your agent's skills folder, for Claude Code ~/.claude/skills/<name>/.
Connected skills
Connect the MCP server first (setup), with an API key scoped to the tools the agent needs (authentication).
| Skill | Use it to |
|---|---|
bannx-quickstart | Connect an agent, check the space and credits, and pick the right tool for a job |
bannx-template-authoring | Turn a brief into a branded, data-driven template, then check it by rendering |
bannx-render-automation | Render a template at scale: per-recipient images, OG images, bulk jobs, signed URLs |
Renders cost credits (rendering); the skills render a few checks, not dozens, and tell the agent to read the balance with whoami first.
Standalone skills
| Skill | Use it to |
|---|---|
layout-design | Compose ads, social posts, OG images, banners, flyers and slides |
design-critique | Score a rendered design before it ships and turn each issue into a concrete fix |
How they stay current
Connected skills hold the workflow and the judgement calls; the exact document model comes from the MCP server's own guides (get_guide), so a skill never teaches an outdated node or field. Each skill carries a version in its frontmatter, and the installer re-downloads a skill when its digest changes.
Security
A skill is instructions loaded into your agent's context. Install skills only from origins you trust. bannx skills contain no scripts. Keep your API key in your MCP client's config or a secret store — never in a prompt, a template or a URL.