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Generate Cogshambo or Mettascope-style pixel art sprites using Retro Diffusion on Replicate
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Based on SOC occupation classification
Use when designing or repairing a CoGames-style game and the main risk is that the rules, map, roles, or play loop do not yet match the real game or prompt closely enough.
Use when creating a new mettagrid game from scratch and you need the design-first workflow that writes the rules contract, checks engine fit, and hands a clean build plan to `cg.game.build-game`.
Use when a CoGames-style game already works visually and mechanically and now needs to be split into a composable variant registry, dependency tree, and optional curriculum tree without regressing the default game.
Use when implementing or overhauling a CoGames-style game once the target contract is known, including scaffold, registration, mechanics, assets, and variant factoring.
Use when designing or repairing a CoGames-style game and the main risk is that the rules, map, roles, or play loop do not yet match the real game or prompt closely enough.
Use when a CoGames-style game is mechanically working but still has missing, placeholder, wrongly themed, or non-namespaced art, terrain, or atlas entries.
| name | cg.gen-sprite |
| description | Generate Cogshambo or Mettascope-style pixel art sprites using Retro Diffusion on Replicate |
| args | <description> [--model rd-plus|rd-fast|rd-animation|rd-tile] [--style STYLE] [--size WxH] [--category cogs|agents|objects|resources|terrain|icons|actions] [--name filename] |
Generate pixel art sprites with tools/gen_sprite.py.
Source: copied and adapted from metta-ai/metta skills/cg.gen-sprite and tools/gen_sprite.py at commit
104d3d15a851442dc28e03fe30c26d0055e41f0c.
REPLICATE_API_TOKEN is set.replicate package is installed, or run through uv with --with replicate.--category cogs for custom Cogshambo cog sprites.tools/gen_sprite.py with an explicit --name so the generated file is stable.public/assets/cogshambo/<category>, which Vite serves at
/assets/cogshambo/<category>/<name>.png.--model rd-animation --style four_angle_walking.uv run --with replicate python tools/gen_sprite.py "<description>" [options]
Key options:
| Flag | Default | Notes |
|---|---|---|
--model | rd-plus | rd-plus, rd-fast, rd-animation, rd-tile |
--category | cogs | cogs, agents, objects, resources, terrain, icons, actions |
--style | auto | style preset for the model |
--size | auto | WxH; cogs and agents default to 192x192 |
--name | auto | output filename without extension |
--num | 1 | variants |
--seed | random | reproducibility |
--palette | none | match an existing sprite palette |
--tile-x, --tile-y | false | seamless tiling |
--no-remove-bg | false | keep background |
--output-dir | auto | override output directory |
--dry-run | false | print settings without calling Replicate |
Common category defaults: cogs/agents 192x192, objects 128x128, resources/icons/actions 64x64, terrain
512x512.
uv run --with replicate python tools/gen_sprite.py \
"brass debate cog with teal glass eye, readable top-down game sprite, transparent background" \
--category cogs \
--name brass_debate_cog
uv run --with replicate python tools/gen_sprite.py \
"armored scout cog, four directional walking cycle, pixel art, transparent background" \
--category agents \
--model rd-animation \
--style four_angle_walking \
--name scout_cog_walk
uv run --with replicate python tools/gen_sprite.py \
"glowing argument token, teal and amber, crisp pixel art icon" \
--category icons \
--name argument_token