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SkillPublic

hand-drawn-diagrams

Generate hand-drawn Excalidraw diagrams from a prompt — animated SVG, hosted edit link, and PNG export. Works with Claude Code, Codex, Gemini CLI, and any agent supporting standard skill paths.

Quality

65%

Does it follow best practices?

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Securityby

Passed

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tessl review fix ./skills/hand-drawn-diagrams/SKILL.md

Quality

Content

43%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This is a catalogue stub rather than a working skill body: it restates frontmatter metadata and defers every substantive instruction to an external repository. Sections are tidy and brief, but an agent reading it cannot actually perform or even install the skill's task.

Suggestions

Include the actual installation step (e.g. a git clone or download command with the concrete skills-directory path) instead of "install the upstream bundle" plus a browser `open` command.

Add a minimal usage section showing how to invoke the skill and what a prompt-to-diagram interaction looks like, so the body is actionable without visiting GitHub.

Ship the upstream assets, scripts, and references as local bundle files under references/ or scripts/ and link them explicitly, rather than pointing everything at an external URL.

Dimension	Reasoning	Score
Conciseness	The body is short and unpadded, but "What it does" repeats the description verbatim and "Source" repeats the frontmatter's upstream URL and category — minor duplication that could be trimmed.	4 / 5
Actionability	The only concrete command is `open https://github.com/muthuishere/hand-drawn-diagrams`, and "install the upstream bundle into your active agent's skills directory" gives no actual install command or path; there is no guidance at all on generating diagrams.	2 / 5
Workflow Clarity	A rough sequence exists (inspect upstream, install, invoke) but each step is poorly defined — no install command, no paths, and no verification that the bundle is installed before invoking the skill.	2 / 5
Progressive Disclosure	Sections are well organized and the external pointer is clearly signaled, but all substantive content is deferred to an external GitHub URL rather than any local bundle file (none exist), so the simple-skill exception for a 5 does not apply.	3 / 5
	Total	11 / 20 Passed

Description

71%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, specific description that clearly states what the skill produces, weakened only by the absence of any explicit "use when" trigger guidance and a few missing natural synonyms. Adding a when-to-use clause would lift it substantially.

Suggestions

Append a 'Use when...' clause, e.g. "Use when the user asks for a sketch, whiteboard-style, or hand-drawn diagram, or mentions Excalidraw."

Fold the natural trigger phrases (sketch, whiteboard, drawing) from the triggers frontmatter into the description text so they surface in skill-matching.

Trim the agent-compatibility sentence or move it after the usage clause so it does not read as a substitute for when-to-use guidance.

Dimension	Reasoning	Score
Specificity	"Generate hand-drawn Excalidraw diagrams from a prompt — animated SVG, hosted edit link, and PNG export" names the input and three concrete deliverables, giving comprehensive coverage of the skill's actions.	5 / 5
Completeness	The "what" is clear, but there is no "Use when..." clause — "Works with Claude Code, Codex, Gemini CLI..." states agent compatibility, not when to use the skill, so completeness is capped at 3.	3 / 5
Trigger Term Quality	"Excalidraw", "hand-drawn", "diagrams", "SVG", and "PNG" are natural user terms, but the description itself omits common synonyms like "sketch", "whiteboard", or "drawing" (these appear only in the separate triggers frontmatter field).	4 / 5
Distinctiveness Conflict Risk	"Hand-drawn Excalidraw diagrams" is a distinct niche, but "Generate ... diagrams from a prompt" carries minor overlap risk with the broad family of general diagramming/visualization skills.	4 / 5
	Total	16 / 20 Passed

Validation

93%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 15 / 16 Passed

Validation for skill structure

Criteria	Description	Result
frontmatter_unknown_keys	Unknown frontmatter key(s) found; consider removing or moving to metadata	Warning

	Total	15 / 16 Passed

Repository: nexu-io/open-design
Path: skills/hand-drawn-diagrams/SKILL.md
Revision: 78d5637

Reviewed: 17 days ago

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hand-drawn-diagrams

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