banner-creator SKILL.md skillA
banner-creator from sutchan/agent-skills-hub is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sutchan/agent-skills-hub/banner-creator@git:20261007.ab00264Pins git:20261007.ab00264 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sutchan/agent-skills-hub
- Path
skills/banner-creator/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261007.ab00264, committed Oct 7, 2026
- First version recorded
- Aug 24, 2026
- Size
- 5,517 bytes
- Repository stars
- 2
- License
- MIT
用 AI 图像生成创建横幅广告素材.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Banner Creator Skill Create professional banners through AI image generation with an iterative design process. ## Prerequisites **Required API Keys (set in environment):** - `GEMINI_API_KEY` - Get from [Google AI Studio](https://aistudio.google.com/apikey) **Required Skills:** - `nanobanana` - AI image generation (Gemini 3 Pro Image) ## File Output Location All generated files should be saved to the `.skill-archive` directory: ``` .skill-archive/banner-creator/<yyyy-mm-dd-summaryname>/ ``` **Example:** ``` .skill-archive/banner-creator/2026-01-19-opc-banner/ banner-01.png banner-02.png ... banner-03-cropped.png preview.html ``` ## Workflow ### Step 1: Discovery & Requirements Before generating, gather requirements from user: **Ask about:** 1. **Purpose** - Where will the banner be used? - GitHub README - Twitter/X header - LinkedIn banner - Website hero - YouTube channel art 2. **Target ratio/size** - See [references/formats.md](./references/formats.md): - `2:1` (1280x640) - GitHub README - `3:1` (1500x500) - Twitter header - `16:9` (1920x1080) - Website hero 3. **Style preference**: - Match existing logo/brand? …
Read the whole file at its exact version.
How to install
mdr add sutchan/agent-skills-hub/banner-creator@sha256:467bce3d588c9159The line at the top of this page pins the label git:20261007.ab00264, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_s3guoilfu3bimkrr)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Aug 24, 2026 and Oct 7, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.ab00264 latest | 2026-10-07 | ab00264 | 5,517 B | A | view · diff |
| git:20261001.6c38d68 | 2026-10-01 | 6c38d68 | 5,521 B | A | view · diff |
| git:20260909.998370c | 2026-09-09 | 998370c | 5,364 B | A | view · diff |
| git:20260828.1f5e663 | 2026-08-28 | 1f5e663 | 5,520 B | A | view · diff |
| git:20260825.5a9f8fd | 2026-08-25 | 5a9f8fd | 5,567 B | A | view · diff |
| git:20260824.c17e79e | 2026-08-24 | c17e79e | 5,727 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5517 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
sutchan/agent-skills-hub · 2 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_s3guoilfu3bimkrr GET https://markdownregistry.com/api/v1/resolve?ref=sutchan/agent-skills-hub/banner-creator GET https://markdownregistry.com/api/v1/blob/467bce3d588c9159584f604bbdd9e6e379a0b0c3417dae357f1abf6295a9a0a3
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.