Ready to supercharge your AI agents?

Install any skill in seconds. Free to start, no credit card required.

Get Started Free →

Unity Prefab Skills · besty0728 | DecimalAI

codingby besty0728

Unity Prefab Skills

besty0728/unity-prefab

Source besty0728/unity-skills ↗License MIT

Manage Prefabs — create, instantiate, apply overrides, unpack, find instances, edit prefab assets, and create variants.

SkillScore95Maintained

Automatic

Coding pack

Last verified 10/10/2026

What it changes

Passed 20 of 21 test cases with the skill, and 3 of 21 without it.

Without skill14%

With skill95%

Checks it passed that the model alone missed

Calls `prefab_unpack` specifying the target scene instance.
Calls `prefab_revert_overrides` for the target scene object.
Calls `prefab_instantiate` with the target prefab asset path.

and 23 more in the full report

17 fixed3 passed either way1 still failing0 broke3 errored

Pass-rate lift: +81 pp
Tokens: +157%
Agent turns: 0%
Response time: -25%

Model gemini-3.6-flashMeasured 10/10/2026v520 of 24 cases passed with skill · 21 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/besty0728-unity-prefab/SKILL.md https://app.decimal.ai/s/besty0728-unity-prefab/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add besty0728-unity-prefab, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/besty0728-unity-prefab/ and pins it in .decimal/skills.lock

decimalai skills add besty0728-unity-prefab

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/besty0728-unity-prefab/SKILL.md https://app.decimal.ai/s/besty0728-unity-prefab/SKILL.md

Raw file: /s/besty0728-unity-prefab/SKILL.md ↗ · machine-readable summary at /s/besty0728-unity-prefab.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 17 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 17

Prompt

I need to place a single streetlight from 'Assets/Prefabs/Props/Streetlamp.prefab' into the active scene at coordinates (10, 0, -5) with the name 'Lamp_East'. What is the appropriate invocation?

What was checked, without and with the skill
Checked	Without skill	With skill
Calls `prefab_instantiate` with the target prefab asset path.	Missed	Passed
Passes local position coordinates (10, 0, -5) for the new instance.	Passed	Passed

case-05 · gemini-3.6-flash · 10/10/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md264 linessingle file

Before calling any skill in this module: if you are about to call a skill with parameters guessed from its name or description, STOP — read this file (or fetch its schema via GET /skills/recommend?includeSchema=true) first. If you already have the parameter definitions from recommend/schema, you may proceed straight to dryRun.

Triggers

Creating or editing prefabs
Instantiating or applying prefab changes
Finding instances in scenes
Creating prefab variants
创建或编辑预制体、实例化或应用预制体改动、在场景中查找实例、创建预制体变体

Unity Prefab Skills

BATCH-FIRST: Use prefab_instantiate_batch when spawning 2+ prefab instances.

Operating Mode

Approval 模式下本模块为 Mixed —— 只读 skill prefab_get_overrides / prefab_find_instances（标 ReadOnly = true, Mode = SkillMode.SemiAuto）可直接执行；其余 9 个写类 skill (prefab_create / prefab_instantiate / prefab_instantiate_batch / prefab_apply / prefab_unpack / prefab_revert_overrides / prefab_apply_overrides / prefab_create_variant / prefab_set_property) 为 SkillMode.FullAuto，需用户 grant 单次执行返结果。Auto / Bypass 直接执行。本模块不含 NeverInSemi 高危 skill（无 Delete / PlayMode / Reload）。

DO NOT (common hallucinations):

prefab_create_from_object does not exist → use prefab_create (takes scene object name/instanceId and savePath)
prefab_spawn does not exist → use prefab_instantiate
prefab_edit / prefab_modify do not exist → use prefab_set_property (edit prefab asset directly) or instantiate, modify, then prefab_apply
prefab_save does not exist → use prefab_apply (applies instance changes to source prefab)

Routing:

To modify components on a prefab instance in scene → use component module skills, then prefab_apply
To set a property directly on the prefab asset → prefab_set_property (this module)
To find all instances of a prefab → prefab_find_instances (this module)

Skills Overview

Single Object	Batch Version	Use Batch When
`prefab_instantiate`	`prefab_instantiate_batch`	Spawning 2+ instances

No batch needed:

prefab_create - Create prefab from scene object
prefab_apply - Apply instance changes to prefab
prefab_unpack - Unpack prefab instance
prefab_get_overrides - Get instance overrides
prefab_revert_overrides - Revert to prefab values

Track record

Benchmark

20 / 21

test cases passed, vs 3 / 21 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v5 — 10/9/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

besty0728 / unity-skills

SkillsForUnity/unity-skills~/skills/prefab/SKILL.md

View on GitHub ↗

License MITImported 10/9/2026Version v5

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Triggers

Unity Prefab Skills

Operating Mode

Skills Overview

Track record

Benchmark

Adoption

SkillSafety

Source

Related skills