What is 8-bit-video-gen?

A two-step process that turns a portrait photo into a short 8-bit pixel-art video. It first creates a pixel-art still image and then animates that image into an MP4 video.

Use it when someone wants a portrait converted into pixel art, an 8-bit animation, or a retro video-game-style video.

It separates the image styling and animation stages, so you can stop after making the still or animate an image you already have.

8-bit-video-gen — Skill for Claude Code and Codex by hugobowne

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 hugobowne/show-us-your-agent-skills --skill 8-bit-video-gen

Clone the repo

git clone --depth 1 https://github.com/hugobowne/show-us-your-agent-skills

Made for: Claude Code, 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/hugobowne/show-us-your-agent-skills/8-bit-video-gen/github.svg)](https://agentmods.dev/skills/hugobowne/show-us-your-agent-skills/8-bit-video-gen)

Your own site

<a href="https://agentmods.dev/skills/hugobowne/show-us-your-agent-skills/8-bit-video-gen"><img src="https://agentmods.dev/badge/skills/hugobowne/show-us-your-agent-skills/8-bit-video-gen/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/hugobowne/show-us-your-agent-skills/8-bit-video-gen"><img src="https://agentmods.dev/badge/skills/hugobowne/show-us-your-agent-skills/8-bit-video-gen.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 101 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,169 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. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00101	$0.01169
Opus 5	$0.00051	$0.00584
Sonnet 5	$0.00020	$0.00234
Haiku 4.5	$0.00010	$0.00117

Measured 12d ago against content hash e4dd3b9aecea, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

8-bit-video-gen 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/make_8bit.py, scripts/make_video.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/8-bit-video-gen/SKILL.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

8-bit video pipeline

Two-step pipeline that turns a portrait photo into a short pixel-art video clip:

Stylize. Gemini converts the photo into an 8-bit still PNG.
Animate. Replicate's bytedance/seedance-2.0 uses that still as the first frame to generate an MP4.

Both scripts live in scripts/ and use PEP 723 inline script metadata, so uv run resolves their dependencies automatically.

If the user only wants the still, run step 1 and stop. If they already have an 8-bit image, skip to step 2.

Setup

Before running either script:

Verify uv is installed: uv --version. If missing, ask the user to install it (https://docs.astral.sh/uv/getting-started/installation/). The scripts declare their Python dependencies inline (PEP 723 metadata), so uv run handles the rest.
Verify the API keys are available. Both scripts load from a .env in the working directory, falling back to the shell environment. Confirm both are set before running:
- GEMINI_API_KEY for step 1 (Gemini stylize)
- REPLICATE_API_TOKEN for step 2 (Replicate animate)
If either is missing, ask the user to add it to .env or export it. Keys come from:
- https://aistudio.google.com/apikey
- https://replicate.com/account/api-tokens

Before each run: ask about customization

Ask the user whether they want to customize the still prompt, video prompt, duration, or seed. Defaults live as DEFAULT_PROMPT in scripts/make_8bit.py and DEFAULT_PROMPT / DEFAULT_DURATION / DEFAULT_SEED in scripts/make_video.py; pass --prompt, --duration, or --seed to override for one run, or edit the constants to change the shipped default.

Step 1: Stylize the photo

uv run <skill-dir>/scripts/make_8bit.py <input_photo> [output_png] [--prompt "..."]

Default output: <input_stem>_8bit.png next to the input.
Stylize prompt is DEFAULT_PROMPT at the top of scripts/make_8bit.py. Pass --prompt to override it for one run.
Default model ID: gemini-3.1-flash-image.
Current fallback IDs to try are gemini-3.1-flash-lite-image and gemini-2.5-flash-image. Do not use the old *-preview fallback names unless ListModels shows they are supported for the current API key.
The script uses Gemini's Interactions API for image editing, matching the current Google AI docs for Nano Banana image generation.
The model can sometimes add facial features that aren't in the source (e.g. a beard on a clean-shaven subject). Flag the output when this happens; do not silently rewrite the prompt to compensate.

Read the full file on GitHub · 74 lines

Files

What ships with it

4 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.

12d ago First seen · 74 lines · 101 tokens per session scan A e4dd3b9aecea

Subscribe to this mod's changes

8-bit-video-gen is a skill published in the GitHub repository hugobowne/show-us-your-agent-skills (67 stars, last pushed 1mo ago), licensed MIT. It adds 101 tokens to every session and 1,169 once invoked, about $0.0005 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 2026-08-30.

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