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 skills add CheshireJCat/blender --skill orthographic-registrationgit clone --depth 1 https://github.com/CheshireJCat/blenderWrote 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.
[](https://agentmods.dev/skills/cheshirejcat/blender/orthographic-registration)<a href="https://agentmods.dev/skills/cheshirejcat/blender/orthographic-registration"><img src="https://agentmods.dev/badge/skills/cheshirejcat/blender/orthographic-registration/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.
<a href="https://agentmods.dev/skills/cheshirejcat/blender/orthographic-registration"><img src="https://agentmods.dev/badge/skills/cheshirejcat/blender/orthographic-registration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00059 | $0.00418 |
| Opus 5 | $0.00030 | $0.00209 |
| Sonnet 5 | $0.00012 | $0.00084 |
| Haiku 4.5 | $0.00006 | $0.00042 |
Grade A, and why
orthographic-registration 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 12d 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
98% identical to orthographic-registration — 2 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.
What it actually says
Orthographic Registration
This skill prevents the common failure where the front view looks plausible but the side/back/top views are wrong.
Coordinate contract
- Front view defines
X/Zsilhouette. - Side view defines
Y/Zdepth envelope. - Top view defines
X/Yspread. - Back view defines rear silhouette/material only; it must not rewrite the front silhouette.
Workflow
- Run
scripts/register_views.pyon the available view images. - Create orthographic reference planes/image empties with a single shared scale.
- Align centerline and bbox centers before modeling.
- Lock front X/Z boundary vertices.
- Add Y depth from side/top envelopes using modifiers/displacement or vertex groups.
- Validate all four cameras before export.
Failure policy
If views disagree, front brand read wins. Document the conflict in registration_report.json.
Front-plane rotation rule
In this Blender coordinate convention, the front camera looks along the Y axis and the reference silhouette lives in the X/Z plane. Therefore 2D rotations inside the front view are rotations around the Y axis, not around Z. Use rotation_euler = (0, angle, 0) for 2D component orientation in the front projection. Z rotation spins objects into/out of screen-space incorrectly for X/Z-plane meshes.
Sources distilled
- Blender Image Empty/reference image controls for orthographic blueprints.
- OpenCV homography/alignment and geometric transforms for view registration.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 12d ago First seen · 41 lines · 59 tokens per session scan A 2791d546fa4f
orthographic-registration is a skill published in the GitHub repository CheshireJCat/blender (26 stars, last pushed 22d ago), licensed MIT. It adds 59 tokens to every session and 418 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to orthographic-registration, differing in 2 lines, and is treated as a copy.
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