Publisher: Anthropic · Editorial profile by AI Tools Ratings · Review method
Not runtime tested; source-document review only. Referenced scripts were not executed or comprehensively audited. No security certification.
What task is this skill designed for?
Produce a short, recognizable celebration loop for a small display.
What input and output should you expect?
Input: An original motif or authorized image, intended dimensions, background, duration and size budget.
Output: A GIF with dimensions and optimization information; expected, not independently tested.
What does it need to run?
Python, Pillow and the skill core utilities. Inspect its dependency list and validation helpers before running them in your environment.
Publisher README describes Claude Skills use; independent Codex or Cursor runtime compatibility is not established.
How should you approach installation?
- Inspect the pinned source, license and task-specific reference files before installing anything.
- Follow the publisher README guidance for your actual client; no installation command or cross-client compatibility was independently tested here.
- Try the illustrative prompt with synthetic input in a separate folder, inspect the output against the checklist and approve external actions separately.
Installation guide: discovery, dependencies and runtime checks
What files, accounts or data can it access?
Reads supplied images and writes frames and GIF files locally. Slack posting is separate and unnecessary for a local trial; start with original shapes rather than employee photos.
What does the skill cost?
The inspected source license is Apache-2.0. Agent subscriptions, model usage, dependencies and external services have separate costs and terms. No paid runtime was tested.
What are its limits and alternatives?
Palette reduction can harm transparency, gradients and text. A large preview may hide unreadable details at actual display size; avoid uncomfortable flashes.
Use a conventional image editor for one manual frame or a video workflow for longer animation. This skill suits compact repeatable loops.
What could you ask in a small trial?
Try this with a small sample:
Create a two-second loop of an original celebrating star on a plain background. Report dimensions and file size; do not upload it anywhere.
How would you verify the result?
- Preview at the actual intended size.
- Check loop continuity, transparency and file size.
- Review imagery permissions and motion comfort before upload.
Use a baseline and record acceptance evidence before treating a successful task as a reliable workflow.
Which source and license were checked?
Read the reviewed SKILL.md at its pinned commit · Complete reviewed folder
Repository and current publisher guidance
Checked:
Apache-2.0 — identified in skills/slack-gif-creator/LICENSE.txt at the reviewed commit. Dependencies and third-party assets may have separate terms. License evidence
Version details and review scope
Source: anthropics/skills/skills/slack-gif-creator
Reviewed commit: dbd4588f9e1033efb41dad4bef2f7947c8993d44
SKILL.md SHA-256: 2efca615ce55a3edd8fc05c779068a8085816617991987e446606403cd3abb22
Source-document review. Source text and stated dependencies were inspected for this profile. Referenced code was not comprehensively audited, no runtime test was performed, and source files are not mirrored here.