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 skills-il/developer-tools --skill open-slide-best-practicesgit clone --depth 1 https://github.com/skills-il/developer-toolsWrote 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/skills-il/developer-tools/open-slide-best-practices)<a href="https://agentmods.dev/skills/skills-il/developer-tools/open-slide-best-practices"><img src="https://agentmods.dev/badge/skills/skills-il/developer-tools/open-slide-best-practices.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, 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 26 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 | $0.00179 | $0.05194 |
| Opus 5 | $0.00089 | $0.02597 |
| Sonnet 5 | $0.00036 | $0.01039 |
| Haiku 4.5 | $0.00018 | $0.00519 |
Grade A, and why
open-slide-best-practices 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 — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.
open-slide Best Practices for Israeli Developers
Adapted from 1weiho/open-slide (MIT). Hebrew and RTL adaptations by skills-il.
Problem
open-slide ships an opinionated authoring system: a fixed 1920×1080 React canvas, a typed DesignSystem const, a themes folder, an inspector that drops @slide-comment markers in source, and five built-in skills (slide-authoring, create-slide, create-theme, apply-comments, current-slide). None of those touch Hebrew or RTL. Out of the box, a deck written by a coding agent comes out left-aligned, system-font only, with paddingLeft that fights the Hebrew reading order, and no guidance for mixed Hebrew+English text. Israeli developers waste hours retrofitting RTL, loading Hebrew Google Fonts, and discovering that the type scale (140–200px hero) which works in Inter looks cramped in Heebo at the same weight.
Instructions
When to use
Use this skill whenever you are writing or editing code under slides/<id>/ in an open-slide project, creating a theme under themes/, or processing inspector comments — especially when any of that content is in Hebrew or bilingual.
New project setup
When in an empty folder or workspace with no existing open-slide project, scaffold one using:
npx @open-slide/cli init my-slide
cd my-slide
npm run dev
Replace my-slide with a suitable project name. The scaffolder installs dependencies with npm and prints npm run dev as the next step; pnpm dev works too if you re-install with pnpm.
Node version. @open-slide/cli depends on commander@15, which declares "node": ">=22.12.0", and on chalk@6 (">=22"). On Node 20 the install still completes but npm prints EBADENGINE Unsupported engine for both. Use Node 22.12 or newer.
What the scaffold gives you:
| Path | What it is |
|---|---|
slides/<id>/index.tsx |
One folder per slide. See the id rule below. |
themes/ |
Theme markdown files |
open-slide.config.ts |
Typed OpenSlideConfig export, empty by default. Framework-level options live here: base, slidesDir, themesDir, assetsDir, port, allowedHosts, build, and a deprecated locale. |
.agents/skills/ and .claude/skills/ |
The five upstream skills, copied in at init time |
npm run sync:skills |
Re-copies the bundled skills out of @open-slide/core after a core upgrade |
What ships with it
10 files 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.
- 8d ago First seen · 207 lines · 179 tokens per session scan A 1be93ba3479c
open-slide-best-practices is a skill published in the GitHub repository skills-il/developer-tools (10 stars, last pushed 6d ago), licensed MIT. It adds 179 tokens to every session and 5,194 once invoked, about $0.0009 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 2026-08-31.
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