slidev:preview

A command that starts a local Slidev development server, letting you preview a presentation written in slides.md in a browser.

In plain words
What is it for?
Use it to find a slides.md file, start its preview at the local development server, and inspect or present the slides.
Why use it?
It provides an interactive preview while you work on presentation content and reloads the view when the file changes.

Command

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.

agentmods
npx agentmods add commands/rhuss/cc-slidev/preview
Clone the repo
git clone --depth 1 https://github.com/rhuss/cc-slidev
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 758 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00013 $0.00758
Opus 5 $0.00006 $0.00379
Sonnet 5 $0.00003 $0.00152
Haiku 4.5 $0.00001 $0.00076

Measured 2d ago against content hash 74f7f260a752, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

slidev:preview 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 2d 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.

slidev/commands/preview.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Preview Presentation

Start Slidev development server to preview and interact with presentation.

Execution

1. Find Presentation

Look for slides.md:

  • Check current directory
  • Check subdirectories
  • If multiple found, ask which one

If not found:

  • Error: "No slides.md found. Generate slides first with /slidev:slides"

2. Start Dev Server

Execute preview script:

cd [presentation-dir]
${CLAUDE_PLUGIN_ROOT}/scripts/preview-slidev.sh slides.md 3030 true

Arguments:

  • File: slides.md
  • Port: 3030 (default)
  • Open browser: true

3. Inform User

Show server info:

## 🚀 Slidev Preview Started

**Server:** http://localhost:3030
**File:** [path]/slides.md

**Features Available:**
- **Presenter Mode:** Press `p`
  - See presenter notes
  - View next slide preview
  - Timer and progress

- **Navigation:**
  - Arrow keys or click
  - Space bar to advance
  - Overview mode: Press `o`

- **Drawing Mode:** Press `d`
  - Annotate slides
  - Drawings persist (if enabled)

- **Recording:** Press `r`
  - Record presentation
  - Export to video

**Hot Reload:**
Changes to slides.md will reload automatically.

**To Stop Server:**
```bash
# Find process
lsof -i :3030

# Kill process
kill [PID]

# Or use Ctrl+C if running in foreground

Edit while previewing: Make changes to slides.md and see them live!


### 4. Offer Assistance

Ask: "What would you like to do while previewing?"

Options:
- Edit slides while watching: `/slidev:edit [N]`
- Enhance visuals: `/slidev:visuals`
- Export to PDF/PPTX: `/slidev:export`
- Just review and practice

### 5. Background Mode

Server runs in background, so user can continue working.

PID saved to `/tmp/slidev-preview.pid` for reference.

## Preview Tips

**Presenter Mode (Press `p`):**
- Two-window view
- Current slide + next slide
- Presenter notes visible
- Timer shows elapsed time
- Practice with this mode!

**Navigation:**
- Use URL params for specific slides: `http://localhost:3030/5`
- Share local URL with others on same network
- Use overview mode (`o`) to see all slides

Read the full file on GitHub · 148 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. 2d ago First seen · 148 lines · 13 tokens per session scan A 74f7f260a752

Subscribe to this mod's changes

slidev:preview is a command published in the GitHub repository rhuss/cc-slidev (49 stars, last pushed 14d ago), licensed MIT. It adds 13 tokens to every session and 758 once invoked, about $0.0001 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.