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🦀 ClawHub

Beauty Diagram

by @levi840714

Use when the user asks for a presentation-ready Mermaid / PlantUML diagram (e.g. "beautify this flowchart", "make this look like a deck slide", "produce an S...

Versionv1.4.0

#legal

⚡ When to Use

Trigger	Action
diagram source they already have or you can generate.
- The user wants you to render Mermaid or PlantUML from a model-generated
source string.
- The user wants the server to generate a diagram from a text description
("draw me a signup flow", "diagram our deploy pipeline") — use
`bd ai generate` for this; it returns Mermaid source you then beautify.
- The user wants to share a diagram link (e.g. paste into Slack / a doc).
- The user has Mermaid in a repo (README, ADR, RFC) and wants to **export
SVGs** alongside.
- The user has a directory full of diagram source files and wants every one
of them rendered (e.g. "render all the .mmd files in docs/diagrams"). Use
`bd batch`.
- The user wants their **Markdown files (README, ADR, blog post) to display the
diagrams inline** on GitHub / their static site, not just show the source
code block. Use `bd extract` — by default it injects inline embed URLs
(no API calls, no files, anonymous-watermarked) after each fenced block.
Pass `--assets-dir ./img` to write local SVG files instead (sidecar mode,
Pro/Premium get watermark-free output). GitHub strips raw inline `
either mode's `![](...)` reference is the correct embed strategy.

💡 Examples

User: "Add a beautified version of this mermaid block to my README."

Agent steps: 1. Use the one-step path: bd embed-url ./architecture.mmd --share → saves the diagram and prints the embed URL, e.g. https://api.beauty-diagram.com/v1/share/abc12345xyz0.svg 2. Replace the raw mermaid block in README with: !Architecture 3. (Optional) Confirm with the user that watermark behavior matches their plan (free owner → watermarked; pro/premium owner → clean).

📋 Tips & Best Practices

| Symptom | Likely cause | Resolution | |---|---|---| | not_authenticated | No key, no session | bd auth login | | scope_missing | Key lacks scope (e.g. ai:write for bd ai generate) | Recreate key with required scope at /account/api-keys | | plan_not_allowed | Plan does not include this capability (AI is Pro / Premium only) | Upgrade or skip the call | | parse_failed | Source not valid Mermaid / PlantUML | Check the source — bd beautify will surface a parse error too | | quota_exhausted | Plan limit hit (anon: 1 export/IP/24h; free: 3 exports/mo; pro: 100 exports + 100 AI gens/mo; premium: ∞ exports + 500 AI gens/mo) | Sign in, wait for reset, or upgrade — hints in the response body has the URLs | | rate_limited | Anonymous IP bucket full (20 /v1/beautify requests / minute) or AI per-key bucket (30 /min) | Sign in or wait | | source_too_large | Source > 100 KB | Split the diagram | | output_too_large | PNG raster exceeds 8192 px | Lower --quality or simplify | | prompt_injection | AI prompt looked like an injection attempt | Rephrase as a plain diagram description ("a flowchart of …") | | instruction_rejected | AI judged the prompt was not about a diagram | Rephrase to describe a concrete diagram. Quota was NOT consumed | | parse_failed_after_retry | AI output was unparseable Mermaid even after one retry | Rephrase, or write Mermaid by hand. Quota was NOT consumed | | safety_blocked | Provider safety filter rejected the request | Rephrase the prompt | | upstream_timeout / upstream_error | AI provider was slow or failed | Retry after a moment |