SRCL is an open-source React component and styling repository for building web, desktop, and static applications with terminal-inspired visuals. Developers use its reusable components and design system when creating interfaces with monospace typography and related styling.
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 internet-development/www-sacred --skill fast-typescript-checkgit clone --depth 1 https://github.com/internet-development/www-sacredWrote 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/internet-development/www-sacred/fast-typescript-check)<a href="https://agentmods.dev/skills/internet-development/www-sacred/fast-typescript-check"><img src="https://agentmods.dev/badge/skills/internet-development/www-sacred/fast-typescript-check.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 6 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 225 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 235 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 236 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 237 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 238 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 237 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00084 | $0.04151 |
| Opus 5 | $0.00042 | $0.02076 |
| Sonnet 5 | $0.00017 | $0.00830 |
| Haiku 4.5 | $0.00008 | $0.00415 |
Grade A, and why
fast-typescript-check 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 281 lines — stays where its author put it; the contents beside it link to each section on GitHub.
fast-typescript-check
A performance discipline for www-sacred. Every rule here is justified against this codebase: either fewer CPU cycles in the components that actually run a render loop, or faster tsc --noEmit. Nothing is cosmetic, and nothing references machinery this repo does not have.
What runs hot here
This is not a game engine. There is no THREE.js, no physics, no 60fps simulation of a world. The only per-frame code is the ASCII/canvas animation family, all driven by requestAnimationFrame:
components/ASCIICanvas.tsx— animated ASCII art in a<pre>of per-cell<span>elementscomponents/MatrixLoader.tsx— falling-glyph matrix effectcomponents/CanvasSnake.tsx,components/DOMSnake.tsx,components/CanvasPlatformer.tsx— interactive gamescomponents/examples/OneLineLoaders.tsx,components/BarLoader.tsx,components/BlockLoader.tsx,components/BarProgress.tsx— spinners
components/ASCIICanvas.tsx is the reference implementation. It already follows most of Part 1: a pre-allocated span grid, DOM diffing against previousCharsRef / previousColorsRef, refs cached into locals before the loop, an indexed for, guarded property writes, and an IntersectionObserver that stops the loop when the element scrolls off-screen. When you write or review an animation component, hold it against that file.
Everything else in the repo — the static React components, the Simulacrum CLI framework under scripts/cli/lib/*, the Python mirror — runs once per interaction, not per frame. Part 1 does not apply there; Part 2 (compiler) does.
Conventions
These match what the repo already does. Follow them; do not invent new ones.
- Comments use
//NOTE(jimmylee):(no space after//, no@) in TS/JS,# NOTE(jimmylee):in Python. Comment the why, never the what. If the code reads clearly, delete the comment. Spell names out —candidateCount, notcnt;previousColors, notpc. A clear name removes the need for a comment. - This repo does not use a
__privateprefix. Module-private state is plainconst; React-internal state is refs. Don't introduce a naming scheme the rest of the codebase doesn't share. - The Simulacrum framework is zero-dependency TypeScript, run via
tsxwith no build step. Do not import that Node-only code (it usesprocess.stdout) from React.
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.
- 8d ago First seen · 281 lines · 84 tokens per session scan A e41da8c01978
fast-typescript-check is a skill published in the GitHub repository internet-development/www-sacred (1,556 stars, last pushed yesterday), licensed MIT. It adds 84 tokens to every session and 4,151 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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