frontend-slides

frontend-slides is a skill for Claude Code, Codex from zai-org/Synapse. It costs 70 tokens per session (5,523 once invoked), scanned A, original, Apache-2.0.

A tool for creating browser-based HTML presentations with animations, or converting PowerPoint files into them. It supports decks such as sales pitches, proposals, tutorials, conference talks, and internal presentations.

In plain words
What is it for?
Use it to build solution decks, presales presentations, client proposals, pitch decks, teaching materials, and conference talks as HTML files.
Why use it?
It helps create presentation slides without relying on a presentation editor or design experience. The resulting decks run in a web browser without extra software libraries.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: names the AskUserQuestion tool.

Good fit Use it to build solution decks, presales presentations, client proposals, pitch decks, teaching materials, and conference talks as HTML files.

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Install with agentmods
npx agentmods add skills/zai-org/synapse/frontend-slides
Install

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.

Any agent
npx skills add zai-org/Synapse --skill frontend-slides
Clone the repo
git clone --depth 1 https://github.com/zai-org/Synapse

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for frontend-slides

README.md
[![agentmods](https://agentmods.dev/badge/skills/zai-org/synapse/frontend-slides/github.svg)](https://agentmods.dev/skills/zai-org/synapse/frontend-slides)
Your own site
<a href="https://agentmods.dev/skills/zai-org/synapse/frontend-slides"><img src="https://agentmods.dev/badge/skills/zai-org/synapse/frontend-slides/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for frontend-slides

Your own site · 80×15
<a href="https://agentmods.dev/skills/zai-org/synapse/frontend-slides"><img src="https://agentmods.dev/badge/skills/zai-org/synapse/frontend-slides.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,523 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00070 $0.05523
Opus 5.5 $0.00028 $0.02209
Sonnet 5.5 $0.00014 $0.01105
Haiku 4.5 $0.00007 $0.00552

Measured 1mo ago against content hash a9ce15e05454, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

frontend-slides 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 1mo ago.

The scan reads SKILL.md. This mod also ships 2 executable files (reference/image-processing.py, reference/ppt-extract.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.setup/skills/clawhub/skills/frontend-slides/SKILL.md · 331 lines

How it starts

The opening of the file, as written. The whole thing — 331 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend Slides Skill

Create zero-dependency, animation-rich HTML presentations that run entirely in the browser. This skill helps non-designers discover their preferred aesthetic through visual exploration ("show, don't tell"), then generates production-quality slide decks.

Reference files: When generating CSS, image processing, PPT extraction, HTML structure, edit button, or animation code, read the corresponding file under reference/ (and STYLE_PRESETS.md for presets and CSS Gotchas) so output is correct and complete.


🧠 Core Design Philosophy

1. Visual Style & Material

Principle: Form follows function. All visual decisions (color, layout, material) must serve the user's mental model and business goals.

Style Position Use Cases Core Characteristics
Future & Depth Frontier exploration, tech product launches Frosted glass + dark mode, halos and transparency for layering
Efficiency & Speed Professional tools, data dashboards Clean flat style + Bento UI, clear boundaries, modular
Trust & Professional Finance, formal presentations, enterprise solutions Swiss minimalism, generous whitespace, relies on typography and strict grids
Care & Resonance Humanities, lifestyle, brand stories Low-saturation natural colors + extreme rounding, ultra-soft diffuse shadows
Immersion & Expression Entertainment, narrative, creative showcases Skeuomorphic materials + high-contrast emotional colors, breaks conventional grids

Style Selection Rules:

  • Solution deck / presales proposal → Trust & Professional (Swiss Modern) or Efficiency & Speed (Bento UI)
  • Product launch / tech showcase → Future & Depth (Dark Botanical / Electric Studio)
  • Brand story / humanities content → Care & Resonance (Pastel Geometry / Vintage Editorial)
  • Creative proposal / marketing campaign → Immersion & Expression (Neon Cyber / Creative Voltage)

2. Spatial & Typography Organization

  • Density Hierarchy: Density is inversely proportional to importance. Core focus areas need low density / large margins. Data lists need high density / small margins.
  • Typography System:
    • Prefer modern sans-serif fonts (Clash Display, Satoshi, DM Sans)
    • Establish significant weight and size contrast between headings and body
    • Body line-height: leading-[1.5] or leading-[1.6] for visual breathability
  • Font Size Constraints:
    • Minimum readable size: 12px (annotations only)
    • Standard body: 14px/16px
    • Headings use clamp() for responsive scaling

Read the full file on GitHub · 331 lines

Changes

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.

  1. 1mo ago First seen · 331 lines · 70 tokens per session scan A a9ce15e05454

Subscribe to this mod's changes

frontend-slides is a skill published in the GitHub repository zai-org/Synapse (488 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 70 tokens to every session and 5,523 once invoked, about $0.0003 per session on Opus 5.5. 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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