shaders SKILL.md skillB
shaders from thrashr888/alchemy is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add thrashr888/alchemy/shaders@git:20260921.b417452Pins git:20260921.b417452 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- thrashr888/alchemy
- Path
.claude/skills/shaders/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260921.b417452, committed Sep 21, 2026
- First version recorded
- Sep 1, 2026
- Size
- 3,296 bytes
- Repository stars
- 14
- License
- MPL-2.0
Use when editing, adding, or reviewing a WebGL shader mode in src/components/DitherBackground.tsx (the notebook backdrop, one GLSL program with 20 theme-driven modes) or src/components/settings/TileShader.tsx (Activity tile washes), or when a theme in src/lib/themes.ts gets a new `shader` variant. Renders the real GLSL in a browser harness so the change is seen before it ships.
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
# Shaders — render before you ship
Both shader components are GLSL ES 1.0 inside `FRAG` template literals,
compiled by WebGL1 at runtime. That choice is deliberate (WKWebView on every
macOS, no WebGPU) — keep the WebGL1 constraints: no dynamic array indexing,
constant-bound loops, no `${}` in the literals (the harness refuses them).
Two facts drive the workflow:
- **One program serves every theme.** A GLSL error in the mode you're adding
kills the backdrop for all 37 themes. Compile is the first gate.
- **Aesthetic misses are confident.** Writing a "bokeh city lights" field
from the words alone produced an abstract plexus. The only reliable check
is the rendered pixels next to a reference image.
## The loop
```bash
python3 scripts/shader-harness.py --serve # http://127.0.0.1:8791/
```
or `preview_start` with the `shaders` launch config, which runs the same
command. The page is written once at start — after each `FRAG` edit rerun
`python3 scripts/shader-harness.py` (no flags) to regenerate it in place,
then reload.
1. **Ask for a reference image** when the request names a style. It carries
more than the name does.
…Read the whole file at its exact version.
How to install
mdr add thrashr888/alchemy/shaders@sha256:144045a3ab854fc3The line at the top of this page pins the label git:20260921.b417452, 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_dad2crdcje47n5ry)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 1, 2026 and Sep 21, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260921.b417452 latest | 2026-09-21 | b417452 | 3,296 B | B | view · diff |
| git:20260913.42249ca | 2026-09-13 | 42249ca | 3,296 B | B | view · diff |
| git:20260901.699d9ae | 2026-09-01 | 699d9ae | 3,296 B | B | view |
Audit of the latest version
- fail: No link to a raw IP address (matched: http://127.0.0.1:8791)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3296 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 script tag
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
thrashr888/alchemy · 14 stars · license MPL-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dad2crdcje47n5ry GET https://markdownregistry.com/api/v1/resolve?ref=thrashr888/alchemy/shaders GET https://markdownregistry.com/api/v1/blob/144045a3ab854fc3734f0d0f9721d0de7c46d845bde7c5ed51d9770a5100269a
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.
More from thrashr888/alchemy
Every file in thrashr888/alchemy