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.
npx agentmods add skills/hkuds/cli-anything/game-developmentnpx skills add HKUDS/CLI-Anything --skill game-developmentgit clone --depth 1 https://github.com/HKUDS/CLI-AnythingWhat 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 | $0.00044 | $0.02634 |
| Opus 5 | $0.00022 | $0.01317 |
| Sonnet 5 | $0.00009 | $0.00527 |
| Haiku 4.5 | $0.00004 | $0.00263 |
Grade A, and why
cli-hub-matrix-game-development 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 2d 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.
This is a copy
86% identical to cli-hub-matrix-3d-cad — 217 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 214 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Game Development Matrix (S4 — v2 capability-based)
Scenario S4. All asset-creation capabilities covered via the S3/S5 stacks; the structural gap is distribution (Steam/itch/console stores) and alternative engines (Unity/Unreal).
Schema: docs/cli-matrix/matrix_registry.schema.md. Matrix plan: docs/cli-matrix/cli-matrix-plan.md.
Install
cli-hub matrix install game-development
cli-hub matrix info game-development
cli-hub matrix preflight game-development --json
Provider selection constraints
- Use preflight as an availability report, not as a provider selector.
- Treat provider order as documentation order only.
- Choose from user requirements, output quality bar, offline needs, credential state, install cost, and provider notes.
- Escalate to paid or metered APIs only when credentials are already present or the user explicitly consents.
Preflight
Run cli-hub matrix preflight game-development --json first. Use the manual block below for extra probes or older cli-hub versions.
cli-hub list --json
python - <<'PY'
import importlib.util
for m in ("pygame","arcade","panda3d","ursina","trimesh","pygltflib","PIL",
"pydub","librosa","music21","mido","abjad","diffusers","replicate",
"posthog","gymnasium"):
print(m, importlib.util.find_spec(m) is not None)
PY
for b in godot blender aseprite butler steamcmd ffmpeg pyinstaller; do
command -v "$b" >/dev/null && echo "$b: yes" || echo "$b: no"
done
for e in STEAM_USERNAME STEAM_PASSWORD ITCH_API_KEY EPIC_DEV_TOKEN \
PLAY_CONSOLE_KEY APP_STORE_CONNECT_KEY \
REPLICATE_API_TOKEN OPENAI_API_KEY STABILITY_API_KEY IDEOGRAM_API_KEY \
POSTHOG_API_KEY GAMEANALYTICS_KEY PLAYFAB_TITLE_KEY SENTRY_DSN; do
[ -n "${!e}" ] && echo "$e: set" || echo "$e: unset"
done
Suggest-to-user template
To enable <capability> via <provider>, please set <ENV_VAR>.
Cost: <cost notes>
Quality: <quality tier>
Reply 'skip' to fall back to <next provider>.
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.
- 2d ago First seen · 214 lines · 44 tokens per session scan A 927218fdf6f3
cli-hub-matrix-game-development is a skill published in the GitHub repository HKUDS/CLI-Anything (48,809 stars, last pushed 12d ago), licensed Apache-2.0. It adds 44 tokens to every session and 2,634 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to cli-hub-matrix-3d-cad, differing in 217 lines, and is treated as a copy.
Other skills, from other repositories
loading-assets
Use this skill when loading assets in Phaser 4. Covers the Loader plugin, loading images, spritesheets, atlases, audio, JSON, tilemaps, bitmap fonts, and tracking load progress. Triggers on: preload, this.load, asset loading, spritesheet, atlas, load progress.
2d-games
2D game development principles. Sprites, tilemaps, physics, camera.
soundclaw
Control Spotify playback, search music, and return shareable music links.
sprite-gen
Generate clean 2D game sprites and animation atlases with a component-row pipeline: base identity, numeric sprite-request SSoT, per-state layout guides, image-gen row strips, chroma-key alpha cleanup, connected-component frame extraction, cell-based atlas composition, QA reports, and runtime manifest framelayout. Its…
skeleton
Edit skeleton bone transforms/hierarchy, retargeting modes, curve metadata, blend profiles, bone constraints, and learn constraints from animations (VibeUE SkeletonService). Socket CRUD, bone enumeration, physics-asset, and material/LOD inspection are owned by the engine SkeletalMeshTools. Use when the user asks to…
animation-montage
Create and manipulate Animation Montages — sections, slots, segments, branching points, notifies, and blend settings (AnimMontageService). Use when the user asks to create a montage (from an animation or empty), add or link montage sections, set up slots/segments, add branching points, or adjust montage blend timing.