reference-look-calibration SKILL.md skillA
reference-look-calibration from max-786/claude-3d-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add max-786/claude-3d-harness/reference-look-calibration@git:20260921.d4bf893Pins git:20260921.d4bf893 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- max-786/claude-3d-harness
- Path
library/cc/reference-look-calibration/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260921.d4bf893, committed Sep 21, 2026
- Size
- 2,205 bytes
- Repository stars
- 9
- License
- MIT
Calibrate Blender materials, lighting, camera crop, emission/glow, color management, and aura/HUD styling against supplied original/reference images using measurable color, brightness, saturation, bbox, and mask statistics. Use when a product must match the lighting/look of a source image or when audits say the product is too bright, desaturated, wrong hue, wrong glow, or wrong silhouette extent.
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
# Reference Look Calibration This skill handles the final visual match after geometry and UVs are locked. It must not compensate for wrong shape, wrong UVs, or wrong camera framing. ## Inputs - accepted geometry / UV fit reports; - reference/original image(s); - product preview render(s); - optional mask overlays and multiview fit reports. ## Metrics Use `scripts/look_fit_report.py` to compare: - object/bright-mask IoU and bbox extent; - configured hue-band mask IoU for glow/accent assets; - mean/std HSV and BGR under object mask; - brightness p95 / mean; - saturation mean; - hue drift. ## Calibration order 1. Camera crop / orthographic scale — object extent must match before color tuning. 2. World/background darkness. 3. Base material hue/value/saturation. 4. Emission strength and glow color. 5. Aura/HUD ring color and thickness. 6. Color management / exposure / gamma. 7. Final render overlay and metrics. ## Hard rules - Do not tune lighting before geometry/UV fit gates pass. - Do not change accent/glow hue away from the source reference unless the user explicitly asks. - Do not hide mismatched geometry with bloom, fog, or overexposure. …
Read the whole file at its exact version.
How to install
mdr add max-786/claude-3d-harness/reference-look-calibration@sha256:a4f026551a547761The line at the top of this page pins the label git:20260921.d4bf893, 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_xi6lxooteafhtcv7)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 21, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2205 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
- pass: No script tag
Source
max-786/claude-3d-harness · 9 stars · license MIT · pushed 2026-09-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xi6lxooteafhtcv7 GET https://markdownregistry.com/api/v1/resolve?ref=max-786/claude-3d-harness/reference-look-calibration GET https://markdownregistry.com/api/v1/blob/a4f026551a5477615bc44e727b6952302388468076c4a997170be903e5edef17
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.