Install
$ agentstack add mcp-owenob1-web-shaders-agent-kit ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Web Shaders Agent Kit
> A drop-in starter suite for making AI coding agents (Claude Code, Cursor, Copilot, Windsurf, ChatGPT, and friends) genuinely good at web shaders — GLSL, WGSL, WebGL 2, WebGPU, Three.js, and React Three Fiber.
Most agents write plausible-looking shaders that render black, redeclare Three.js's injected uniforms, or ignore color space and aspect ratio. This kit encodes the platform matrix, correct boilerplate, and the pitfalls that fail silently — as a reusable skill, cross-tool rules, a documentation manifest, MCP config, and a system prompt. Take the whole thing or just the pieces you need.
Companion to the Awesome Web Shaders list.
What's inside
| File | Use it in | |---|---| | [skills/web-shaders/SKILL.md](skills/web-shaders/SKILL.md) | Claude Code / Codex agent skill — the full, structured expertise. | | [rules/cursor/web-shaders.mdc](rules/cursor/web-shaders.mdc) | Cursor project rule. | | [rules/AGENTS.md](rules/AGENTS.md) | Generic AGENTS.md / CLAUDE.md / Copilot / Windsurf / Cline rules. | | [llms.txt](llms.txt) | A documentation manifest — point an agent at authoritative shader docs. | | [mcp/recommended-mcp.json](mcp/recommended-mcp.json) | Suggested MCP servers (Context7 docs, Shadertoy). | | [prompts/system-prompt.md](prompts/system-prompt.md) | A system prompt for a chat assistant / custom GPT / Project. |
Install
Claude Code — copy the skill into your project or user skills directory:
mkdir -p .claude/skills
cp -r skills/web-shaders .claude/skills/
Claude loads it automatically when a task matches the skill's description.
Cursor — copy the rule into your project:
mkdir -p .cursor/rules
cp rules/cursor/web-shaders.mdc .cursor/rules/
Copilot / Windsurf / Cline / generic — copy rules/AGENTS.md to your project root (or paste it into CLAUDE.md / .github/copilot-instructions.md / your Windsurf rules).
Any agent — hand it [llms.txt](llms.txt) so it fetches real API docs, and merge [mcp/recommended-mcp.json](mcp/recommended-mcp.json) into your MCP client config for live docs and Shadertoy access.
ChatGPT / custom GPT / Claude Project — paste [prompts/system-prompt.md](prompts/system-prompt.md) into the system instructions.
What it teaches
- Target first — WebGL 2 (GLSL ES 3.00) vs WebGPU (WGSL) vs Three.js
ShaderMaterial/RawShaderMaterial/TSL vs R3F, and the correct boilerplate for each. - The injected-uniform trap — what Three.js
ShaderMaterialalready provides so the agent stops redeclaringposition,uv, and the matrices. - Correctness — aspect-ratio, UV origin, sRGB/linear color, tone mapping, premultiplied alpha.
- Portability footguns — dynamic array indexing, non-constant loops, integer division,
pow/modof negatives, precision qualifiers, WGSL alignment. - A debugging workflow — visualize intermediates, read compile errors, verify uniforms, inspect with Spector.js / WebGPU Inspector.
Contributing
Improvements welcome — especially real gotchas from shipping browser shaders. Open an issue or PR.
License
[MIT](LICENSE).
Source & license
This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: owenob1
- Source: owenob1/web-shaders-agent-kit
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.