headless-batch-scripting SKILL.md skillB
headless-batch-scripting 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/headless-batch-scripting@git:20261007.4aeb805Pins git:20261007.4aeb805 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/headless-batch-scripting/SKILL.md- Versions recorded
- 10
- Latest version
- git:20261007.4aeb805, committed Oct 7, 2026
- First version recorded
- Apr 26, 2026
- Size
- 13,004 bytes
- Repository stars
- 17
- License
- a license file GitHub does not identify
Run Blender unattended with blender --background --python, arguments after the -- separator, --factory-startup and --python-exit-code, and temp_override for operators that need context. Use when the user renders, exports or processes .blend files from a CLI, CI job or batch script, passes arguments to a Blender script, or hits 'poll() failed, context is incorrect' or a job that exits 0 despite a Python traceback. Targets 5.2 LTS with 4.5 LTS fallback.
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
# Headless Batch Scripting ## Trigger Use this skill when the user: - Wants to render, export, or process .blend files from a CLI or CI pipeline - Mentions `blender --background`, `--python`, "headless", "batch render", "no UI" - Has an operator script that fails with `RuntimeError: Operator bpy.ops.X.Y.poll() failed, context is incorrect` - Needs to pass arguments to a Blender Python script ## The basic shape ```powershell blender --background --python my_script.py ``` Or with a specific .blend file: ```powershell blender --background scene.blend --python my_script.py ``` Or with arguments after `--`: ```powershell blender --background scene.blend --python my_script.py -- --output out.png --frames 1,5,10 ``` `--background` (or `-b`) tells Blender not to launch a UI window. `--python` (or `-P`) runs a Python script. The script's `sys.argv` is Blender's **full** command line (`blender`, `--background`, `--python`, ...); slice off everything up to and including `--` to get your own arguments, as the parser below does. Two flags matter for unattended runs: …
Read the whole file at its exact version.
How to install
mdr add tmhsdigital/blender-developer-tools/headless-batch-scripting@sha256:5282373ca9ce7861The line at the top of this page pins the label git:20261007.4aeb805, 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_tqncn3pirdm6w4kt)
2 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 7, 2026, about one every 18 days. Its first recorded version is graded A and its latest B.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.4aeb805 latest | 2026-10-07 | 4aeb805 | 13,004 B | B | view · diff |
| git:20261005.d2cb9e9 | 2026-10-05 | d2cb9e9 | 13,007 B | B | view · diff |
| git:20261005.f80411b | 2026-10-05 | f80411b | 12,738 B | B | view · diff |
| git:20261005.5e0299c | 2026-10-05 | 5e0299c | 11,523 B | A | view · diff |
| git:20261005.040e994 | 2026-10-05 | 040e994 | 11,296 B | A | view · diff |
| git:20261004.2d4e769 | 2026-10-04 | 2d4e769 | 10,794 B | A | view · diff |
| git:20260618.c39032d | 2026-06-18 | c39032d | 9,136 B | A | view · diff |
| git:20260613.e6324e5 | 2026-06-13 | e6324e5 | 8,831 B | A | view · diff |
| git:20260426.5a05f16 | 2026-04-26 | 5a05f16 | 8,830 B | A | view · diff |
| git:20260426.c441526 | 2026-04-26 | c441526 | 8,830 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 (13004 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_tqncn3pirdm6w4kt GET https://markdownregistry.com/api/v1/resolve?ref=tmhsdigital/blender-developer-tools/headless-batch-scripting GET https://markdownregistry.com/api/v1/blob/5282373ca9ce78610969224f0cf45ae85c46f43ba3cfd7167436a4b60fe1530c
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.