What is instantiate-asset-pack?

A tool for placing a complete 2D asset pack into a game scene. It uses information about each image's position, grouping, and drawing order to recreate the pack as scene objects.

Use it to add a whole interface pack, biome pack, dungeon pack, or composite object to a scene. It is for complete packs, not individual images.

It removes the manual work of importing every part of a pack and arranging overlapping pieces correctly.

instantiate-asset-pack — Skill for Claude Code by SummerEngine

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 SummerEngine/summer-engine-agent --skill instantiate-asset-pack

Clone the repo

git clone --depth 1 https://github.com/SummerEngine/summer-engine-agent

Made for: Claude Code.

Or install summer, the plugin that ships this one along with the rest of its 80 skills, 2 commands, 2 hooks, 1 MCP server.

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/summerengine/summer-engine-agent/instantiate-asset-pack/github.svg)](https://agentmods.dev/skills/summerengine/summer-engine-agent/instantiate-asset-pack)

Your own site

<a href="https://agentmods.dev/skills/summerengine/summer-engine-agent/instantiate-asset-pack"><img src="https://agentmods.dev/badge/skills/summerengine/summer-engine-agent/instantiate-asset-pack/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/summerengine/summer-engine-agent/instantiate-asset-pack"><img src="https://agentmods.dev/badge/skills/summerengine/summer-engine-agent/instantiate-asset-pack.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 131 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,864 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	$0.00131	$0.02864
Opus 5.5	$0.00052	$0.01146
Sonnet 5.5	$0.00026	$0.00573
Haiku 4.5	$0.00013	$0.00286

Measured 2mo ago against content hash 41170b1b2c36, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

instantiate-asset-pack 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 2mo 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.

skills/2d-assets/instantiate-asset-pack/SKILL.md · 246 lines

How it starts

The opening of the file, as written. The whole thing — 246 lines — stays where its author put it; the contents beside it link to each section on GitHub.

instantiate-asset-pack — Instantiate Asset Pack into Scene

A pack ArtAsset (produced by summer:2d-assets/create-asset-sheet) is a bundle of cropped slice PNGs with per-slice metadata. This skill is the runtime side: given a pack, lay its slices into the current scene as a correctly-grouped, correctly-layered set of nodes.

For wiring individual widget slices (9-slice panels, progress bars, toggles), this skill delegates to summer:2d-assets/use-widget-asset. This skill handles the pack-level layout: grouping composites, paint order, spatial offset, naming.

When to use

"Import the dungeon UI pack."
"Spawn the settings panel from that asset sheet I just made."
"Bring the whole biome pack into this scene."
"Add the card frame composite from pack X."
User has a pack ArtAsset in their library and wants it placed in the scene, not just imported as files.

When NOT to use

User wants a single slice → import it directly as a Sprite2D (or summer:2d-assets/use-widget-asset if it's a UI widget).
User wants to generate a new pack → summer:2d-assets/create-asset-sheet.
User wants to apply a slice as a material/texture on a 3D mesh → not the pack flow; see asset_pipeline.json.

Pack JSON shape

Full schema: publicsummerengine/public/knowledge/asset_pack_schema.json.

The per-slice fields this skill cares about:

Field	Used for
`name`	Node name
`url`	Texture path (after `summer_import_from_url`)
`bbox`	Spatial offset of composite children relative to parent
`zOrder`	`z_index` on the Sprite2D; sort children by this ascending
`isComposite`	Filter out parent slices (flat previews, not runtime assets)
`parentSliceIndex`	Group children to their composite parent
`pairWith`	Toggle ON/OFF pair link
`widget`	Wrap in NinePatchRect / TextureProgressBar via `use-widget-asset`
`category`	Decide wrapper type — `ui` → Control tree, else Node2D/Sprite2D

Legacy fallback: slice.zOrder ?? slice.layerIndex ?? packFileIndex, slice.isComposite ?? slice.isReference ?? false. packFileIndex is the iteration counter when looping packFiles[], not a stored field.

Read the full file on GitHub · 246 lines

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.

2mo ago First seen · 246 lines · 131 tokens per session scan A 41170b1b2c36

Subscribe to this mod's changes

instantiate-asset-pack is a skill published in the GitHub repository SummerEngine/summer-engine-agent (59 stars, last pushed 1mo ago), licensed MIT. It adds 131 tokens to every session and 2,864 once invoked, about $0.0005 per session on Opus 5.5. 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.

2d-assets Game development ai ai-game-development ai-game-engine game-development game-engine

instantiate-asset-pack next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
instantiate-asset-packSummerEngine/summer-engine-agent	Skill	59	1mo ago	MIT	A	131	Claude Code
self-evolvetettethu/VibeGame	Skill	367	24d ago	Apache-2.0	A	50	Claude Code, Codex
artist-self-evolvetettethu/VibeGame	Skill	367	24d ago	Apache-2.0	A	62	Claude Code, Codex
vibegame-buildtettethu/VibeGame	Skill	367	24d ago	Apache-2.0	A	42	Claude Code, Codex
vibegame-starttettethu/VibeGame	Skill	367	24d ago	Apache-2.0	A	61	Claude Code, Codex
vibegame-edittettethu/VibeGame	Skill	367	24d ago	Apache-2.0	A	57	Claude Code, Codex
hearth-feelechoo19/hearth	Skill	44	1mo ago	MIT	A	97	Claude Code