Muapi Social Pack
Re-render a hero image into Instagram, TikTok, YouTube-shorts and Twitter/X aspect ratios.
Specification
- Skill ID
- samuraigpt/generative-media-skills/muapi-social-pack
- Publisher
- samuraigpt
- Repository
- generative-media-skills
- Installs
- 0
- Files
- 1
- Synced
- Sep 23, 2026
How to use it
Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.
samuraigpt/generative-media-skills/muapi-social-packInstalls these files- SKILL.md
What this skill tells the agent
Social Media Pack
Re-render a hero image into Instagram, TikTok, YouTube-shorts and Twitter/X aspect ratios.
Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
source_image | image_url | yes | — | URL of the hero image (or asset_id from this session). |
caption_idea | text | no | — | Optional caption / overlay direction (kept short). |
formats | list | no | 1:1, 9:16, 4:5, 16:9 | Aspect ratios to produce. |
Steps
Use the plan to fan out one node per format.
- For each requested aspect ratio in
{{formats}}:
- Call
muapi image edit(model=nano-banana-2-edit) with the source image. - Prompt: "Reframe the composition to {{aspect_ratio}} for social media. Keep the subject centred and uncropped. Match the original lighting and palette. {{caption_idea_hint}}".
- Where
{{caption_idea_hint}}= "Leave headroom at the top for a caption: '<caption_idea>'." (only if caption_idea is non-empty).
- All formats run in parallel (no inter-node dependencies).
- Return one asset id per format, labelled with the platform it suits:
- 1:1 → Instagram feed
- 9:16 → TikTok / IG Reels / YT Shorts
- 4:5 → Instagram portrait
- 16:9 → Twitter / X / YouTube
- 21:9 → cinematic banner
Notes
- Don't generate fresh images — only reframe / re-edit the source.
- If the source already matches a format, skip that node and surface the original asset id for it.
Trigger Keywords
social pack, resize for social, cross-post, multi-platform
Notes for the Executing Agent
- This recipe is LLM-orchestrated: read each phase, gather any missing inputs from the user, then call
muapiCLI commands. Usemuapi auth configurefirst ifMUAPI_API_KEYis unset. - For model IDs without a CLI alias yet, fall back to the raw endpoint via
curl -X POST https://api.muapi.ai/api/v1/<endpoint> -H "x-api-key: $MUAPI_API_KEY" -H 'content-type: application/json' -d '{...}'and poll withmuapi predict wait <request_id>. - Substitute
{{input_name}}placeholders with the user's actual inputs before issuing each call.
More from samuraigpt
Use this skill in a project
Open any RiverX project, search the Skills panel for samuraigpt/generative-media-skills/muapi-social-pack, and install it in one click.
