Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add rhuss/cc-slidev/plugin install slidevWrote 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/commands/rhuss/cc-slidev/diagram)<a href="https://agentmods.dev/commands/rhuss/cc-slidev/diagram"><img src="https://agentmods.dev/badge/commands/rhuss/cc-slidev/diagram.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00014 | $0.03546 |
| Opus 5 | $0.00007 | $0.01773 |
| Sonnet 5 | $0.00003 | $0.00709 |
| Haiku 4.5 | $0.00001 | $0.00355 |
Grade A, and why
slidev:diagram 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 6d 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 — 511 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Diagram Creation for Specific Slide
Focus on creating diagrams for a specific slide with multi-platform support (Mermaid, PlantUML, Excalidraw) using evidence-based cognitive load limits and colorblind-safe design.
Evidence Base: Diagram design follows research-based principles for cognitive load (max 7-9 nodes), colorblind accessibility, and visual clarity. See references/presentation-best-practices.md for guidelines.
Multi-Platform: Diagrams are automatically generated in all enabled formats (configurable in default.json or per-presentation slidev.config.json). Mermaid code is embedded inline by default, with PlantUML and Excalidraw alternatives saved for flexibility.
Execution
IMPORTANT - File Organization:
- Source files (
.mmd,.puml,.excalidraw) → Always save to./diagrams/ - Rendered images (
.svg,.png) → Save to./public/images/<slide-title>/ - This keeps sources version-controlled separately from generated outputs
CRITICAL - Embedding Rules:
- Mermaid: CAN be embedded inline in markdown (Slidev renders it)
- PlantUML: NEVER embed - only reference rendered SVG images
- Excalidraw: NEVER embed - only reference rendered SVG images
1. Parse Slide Number
Extract from $ARGUMENTS:
- Must be valid number
- If missing: Ask "Which slide number should we create a diagram for?"
2. Read Target Slide
Find slides.md and locate slide:
- Extract slide content
- Check if diagram already exists
- Understand slide topic and content
Show user the slide:
## Slide [N]: [Title]
**Current Content:**
[Slide content]
**Existing Visual:** [Yes: diagram type / No]
3. Analyze Content for Diagram Type (Evidence-Based)
Determine Best Platform (Mermaid vs Excalidraw vs PlantUML):
Analyze slide content to determine which platform best conveys the concept:
Use Excalidraw (invoke skill) when:
- Conceptual relationships need spatial layout
- Architecture with nested components (frames for boundaries)
- Brainstorming/ideation context (hand-drawn aesthetic)
- Informal, approachable style needed (whiteboard feel)
- Annotations and callouts would add value
- Mind maps or radial structures
- Keywords detected: "architecture", "components", "system design", "overview", "spatial"
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.
- 6d ago First seen · 511 lines · 14 tokens per session scan A 945f43792d17
slidev:diagram is a command published in the GitHub repository rhuss/cc-slidev (51 stars, last pushed 18d ago), licensed MIT. It adds 14 tokens to every session and 3,546 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.
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