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Install in OpenClaw
/install post-creator
Description
Generate beautiful single-page HTML posters with various styles. Use when users want to create posters, flyers, promotional images, marketing materials, or v...
Usage Guidance
This skill appears to do what it says and does not ask for credentials or install code on your system. Two practical things to consider before use: 1) The generated HTML includes external resources (Google Fonts and html2canvas from a CDN). Those scripts run in whoever opens the HTML in a browser — review or vendor-lock those links if you prefer to avoid third-party code (you can replace CDN links with local copies). 2) There is a documentation inconsistency: SKILL.md says the poster container must use a solid background, but many example templates use background gradients. Expect occasional style mismatches; review generated HTML before publishing. If you need higher assurance, request the skill author/source repository (homepage is listed but origin is 'unknown') or host/inspect the templates yourself prior to sharing widely.
Capability Assessment
Purpose & Capability
Name, description, and files all align: the skill's goal is to produce single-page HTML posters, and the SKILL.md + examples show exactly that. No unrelated binaries, env vars, or capabilities are requested.
Instruction Scope
The runtime instructions require embedding Google Fonts and the html2canvas CDN in generated HTML (expected for in-browser export). This is coherent for poster export but means the generated files will load third-party scripts in the user's browser. Also, SKILL.md forbids using gradients on the main #poster background, yet many example templates in references/styles.md and README use linear-gradient on page/poster backgrounds — a contradiction in author guidance (design inconsistency, not necessarily malicious).
Install Mechanism
No install spec and no code files to execute on the agent/system. This is instruction-only which minimizes risk; nothing is downloaded or written by the skill at install time.
Credentials
The skill requests no environment variables, no credentials, and no config paths. Its resource needs (fonts and a CDN script referenced inside generated HTML) are reasonable for its stated purpose.
Persistence & Privilege
always is false and the skill does not request persistent or elevated privileges. It does not modify other skills or system-wide settings in the provided materials.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install post-creator - After installation, invoke the skill by name or use
/post-creator - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.6.3
Security fix: Removed playwright dependency. Clarified: gradients allowed on text/buttons, only main background must be solid. External resources (Google Fonts, html2canvas CDN) documented.
v1.6.2
Fixed: Export background color issue. Rule added: Only solid backgrounds allowed, no CSS gradients.
v1.6.1
Fix: PNG export now preserves background color
v1.6.0
Added built-in export button using html2canvas. Users can download PNG/JPG directly from browser - no system commands needed.
v1.5.1
Security fix: Removed shell command examples, reduced permissions to browser-only, changed deliverable to HTML file
v1.5.0
Initial release: Generate beautiful HTML posters with various styles. Default 2:3 aspect ratio (1080x1620). Supports Chinese/English. 8 design styles included.
Metadata
Frequently Asked Questions
What is Post Creator?
Generate beautiful single-page HTML posters with various styles. Use when users want to create posters, flyers, promotional images, marketing materials, or v... It is an AI Agent Skill for Claude Code / OpenClaw, with 262 downloads so far.
How do I install Post Creator?
Run "/install post-creator" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Post Creator free?
Yes, Post Creator is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Post Creator support?
Post Creator is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Post Creator?
It is built and maintained by ToBeWin (@tobewin); the current version is v1.6.3.
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