custom-properties SKILL.md skillB
custom-properties from tmhsdigital/blender-developer-tools is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tmhsdigital/blender-developer-tools/custom-properties@git:20261012.96b6076Pins git:20261012.96b6076 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tmhsdigital/blender-developer-tools
- Path
skills/custom-properties/SKILL.md- Versions recorded
- 10
- Latest version
- git:20261012.96b6076, committed Oct 12, 2026
- First version recorded
- Apr 26, 2026
- Size
- 12,973 bytes
- Repository stars
- 17
- License
- a license file GitHub does not identify
Define and bind custom properties with bpy.props annotations, PropertyGroup and PointerProperty, and choose where to store them (Scene, Object, WindowManager, AddonPreferences). Use when the user attaches settings or data to datablocks so it survives save and load, is unsure where add-on settings belong, or writes a property as an assignment instead of an annotation and gets a deprecation warning or a _PropertyDeferred value. Targets 5.2 LTS.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Custom Properties
## Trigger
Use this skill when the user:
- Wants to attach data to objects, scenes, or other Blender datablocks that survives save and load
- Mentions `bpy.props`, `PropertyGroup`, `PointerProperty`, "custom properties"
- Is unsure where to store add-on settings
- Sees a deprecation warning about property assignment
## Required inputs
- **What you want to store**: a single number, a small struct, a list of items, or a complex hierarchy
- **Where it should live**: Scene (per-document), Object (per-object), WindowManager (session-only), AddonPreferences (per-user)
- **Whether it must persist** through save/load (almost always yes)
## The type annotation form (mandatory since 2.8)
```python
import bpy
class MY_ADDON_PG_settings(bpy.types.PropertyGroup):
intensity: bpy.props.FloatProperty(
name="Intensity",
description="How strong the effect is",
default=1.0,
min=0.0,
max=10.0,
)
use_smoothing: bpy.props.BoolProperty(name="Smooth", default=True)
mode: bpy.props.EnumProperty(
name="Mode",
items=[
('FAST', "Fast", "Lower quality, faster"),
…Read the whole file at its exact version.
How to install
mdr add tmhsdigital/blender-developer-tools/custom-properties@sha256:508e85e8a359566dThe line at the top of this page pins the label git:20261012.96b6076, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_amk23qtihgyn46fj)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 10 versions of this file, between Apr 26, 2026 and Oct 12, 2026, about one every 19 days. Its first recorded version is graded A and its latest B.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261012.96b6076 latest | 2026-10-12 | 96b6076 | 12,973 B | B | view · diff |
| git:20261005.f80411b | 2026-10-05 | f80411b | 12,736 B | B | view · diff |
| git:20261005.5e0299c | 2026-10-05 | 5e0299c | 12,149 B | A | view · diff |
| git:20261005.b612f3a | 2026-10-05 | b612f3a | 11,954 B | A | view · diff |
| git:20261004.bce71a9 | 2026-10-04 | bce71a9 | 9,978 B | A | view · diff |
| git:20260909.e5b1642 | 2026-09-09 | e5b1642 | 9,732 B | A | view · diff |
| git:20260613.e6324e5 | 2026-06-13 | e6324e5 | 9,728 B | A | view · diff |
| git:20260613.c801f77 | 2026-06-13 | c801f77 | 9,727 B | A | view · diff |
| git:20260426.5a05f16 | 2026-04-26 | 5a05f16 | 9,390 B | A | view · diff |
| git:20260426.c441526 | 2026-04-26 | c441526 | 9,390 B | A | view |
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12973 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
tmhsdigital/blender-developer-tools · 17 stars · license a license file GitHub does not identify · pushed 2026-10-18 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_amk23qtihgyn46fj GET https://markdownregistry.com/api/v1/resolve?ref=tmhsdigital/blender-developer-tools/custom-properties GET https://markdownregistry.com/api/v1/blob/508e85e8a359566da3d902b6926034f071f3005dc4082278eafe6e638030bd66
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.