samuraigpt/generative-media-skills1 file

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

NameTypeRequiredDefaultDescription
source_imageimage_urlyes—URL of the hero image (or asset_id from this session).
caption_ideatextno—Optional caption / overlay direction (kept short).
formatslistno1:1, 9:16, 4:5, 16:9Aspect ratios to produce.

Steps

Use the plan to fan out one node per format.

  1. 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).
  1. All formats run in parallel (no inter-node dependencies).
  2. 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 muapi CLI commands. Use muapi auth configure first if MUAPI_API_KEY is 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 with muapi predict wait <request_id>.
  • Substitute {{input_name}} placeholders with the user's actual inputs before issuing each call.

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.

Use this skill