h3-creature-motion-replacement

h3-creature-motion-replacement is a skill for Codex from linkprint/local-ai-movie-workspace. It costs 75 tokens per session (528 once invoked), scanned A, original, MIT.

A prompt-writing skill for replacing a person in an existing video with an original creature while keeping the original movement, camera, timing, setting, and prop interactions.

In plain words
What is it for?
Use it for creature stunt doubles, actor-to-animal replacements, and motion-transfer video edits with MiniMax H3.
Why use it?
It separates the source video's motion from the creature's appearance, helping avoid prompts that accidentally change the scene or movement.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: $skill-name invocation.

Good fit Use it for creature stunt doubles, actor-to-animal replacements, and motion-transfer video edits with MiniMax H3.

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Install with agentmods
npx agentmods add skills/linkprint/local-ai-movie-workspace/h3-creature-motion-replacement
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add linkprint/local-ai-movie-workspace --skill h3-creature-motion-replacement
Clone the repo
git clone --depth 1 https://github.com/linkprint/local-ai-movie-workspace

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for h3-creature-motion-replacement

README.md
[![agentmods](https://agentmods.dev/badge/skills/linkprint/local-ai-movie-workspace/h3-creature-motion-replacement/github.svg)](https://agentmods.dev/skills/linkprint/local-ai-movie-workspace/h3-creature-motion-replacement)
Your own site
<a href="https://agentmods.dev/skills/linkprint/local-ai-movie-workspace/h3-creature-motion-replacement"><img src="https://agentmods.dev/badge/skills/linkprint/local-ai-movie-workspace/h3-creature-motion-replacement/github.svg" alt="Measured on agentmods" height="20"></a>

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Your own site · 80×15
<a href="https://agentmods.dev/skills/linkprint/local-ai-movie-workspace/h3-creature-motion-replacement"><img src="https://agentmods.dev/badge/skills/linkprint/local-ai-movie-workspace/h3-creature-motion-replacement.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 528 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00075 $0.00528
Opus 5 $0.00037 $0.00264
Sonnet 5 $0.00015 $0.00106
Haiku 4.5 $0.00007 $0.00053

Measured 12d ago against content hash 36a3b0d1b8ea, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

h3-creature-motion-replacement scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

images/workspace/admin-skills/h3-creature-motion-replacement/SKILL.md · 37 lines

How it starts

The opening of the file, as written. The whole thing — 37 lines — stays where its author put it; the contents beside it link to each section on GitHub.

H3 Creature Motion Replacement

Treat this as a controlled edit: motion and staging come from the source, while creature identity and optional lighting come from separate references.

Route the Request

  • For prompt writing or analysis, return a Ref2VA plan without rendering.
  • Only attempt real replacement when the active generation tool explicitly supports video and image references.
  • A true motion replacement must use native Ref2VA with the source motion clip under reference_videos; never substitute T2VA and call it equivalent.
  • For an original no-reference demonstration, use the T2VA adaptation in the blueprint and clearly label it as a style demo, not motion replacement.
  • Use $h3-prompt-writing and read references/style-blueprint.md.

Separate Reference Jobs

  1. <Video 1> supplies the source edit, camera motion, temporal structure, actor path, and prop timing.
  2. <Subject 1> supplies creature anatomy, scale, skin or fur, locomotion, and silhouette from its image reference.
  3. Define a setting or lighting reference separately; never let it overwrite the source geometry unless requested.
  4. Mark retained props and contact events explicitly, including doors, handles, toys, floor contact, shadows, and impact timing.
  5. Replace human sounds with creature-specific footsteps, breathing, claws, fabric, or weight while preserving the timing of the source action.
  6. Keep anatomy stable and physically compatible with the interaction. Do not invent extra limbs or let the creature pass through objects.

Render Rules

  • True replacement uses full-reference format, not the three-field T2VA format.
  • A T2VA style demo may depict an original creature performing a simple domestic action with cinematic night lighting.
  • Keep clips to 4–15 seconds. Default demo resolution is 864x480; explicit 768p means 1344x768.
  • Exclude copyrighted characters, real-person likenesses, visible source watermarks, and unsupported claims of exact motion transfer.

Read the full file on GitHub · 37 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 37 lines · 75 tokens per session scan A 36a3b0d1b8ea

Subscribe to this mod's changes

h3-creature-motion-replacement is a skill published in the GitHub repository linkprint/local-ai-movie-workspace (1 stars, last pushed 14d ago), licensed MIT. It adds 75 tokens to every session and 528 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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