diagram-maker

Create standalone SVG/HTML or editable Excalidraw diagrams for concepts, architecture, processes, flows, and whiteboards.

Quality

80%

Does it follow best practices?

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Securityby

Passed

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Fix and improve this skill with Tessl

tessl review fix ./builtin-skills/skills/diagram-maker/SKILL.md

Quality

Content

86%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.

The content is highly token-efficient, well-structured, and uses one-level-deep references effectively, with only minor softness in its validation wording and reliance on external template files for executable code.

Dimension	Reasoning	Score
Conciseness	The body is lean bullet-and-rule prose with no padding or explanation of concepts Claude already knows; every line delivers actionable constraint.	5 / 5
Actionability	Concrete specs (120x60 minimum, roughness 1, fontFamily 1, semantic colors, fill='none' connectors) give executable guidance, with the actual SVG/Excalidraw templates delegated to verified reference files.	4 / 5
Workflow Clarity	A numbered six-step workflow includes an overwrite guard (step 5) and a verification step (step 6), but the validation phrasing 'when feasible' is slightly soft.	4 / 5
Progressive Disclosure	The SKILL.md is a concise overview with two clearly signaled one-level-deep references (svg-template.md, excalidraw-patterns.md), both verified to exist as real bundle files.	5 / 5
	Total	18 / 20 Passed

Description

66%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.

The description is specific and distinctive with strong natural trigger terms, but it omits any explicit 'Use when...' guidance, which caps completeness and leaves the activation context implicit.

Suggestions

Append a 'Use when...' clause listing concrete triggers, e.g. 'Use when the user asks for a diagram, flowchart, architecture sketch, whiteboard, or visual representation of concepts, processes, or systems.'

Add common synonyms such as 'flowchart', 'sequence diagram', or 'schema' to broaden trigger-term coverage.

Vary the action verbs beyond 'Create' (e.g. 'Generate', 'Draw') to signal the range of supported actions.

Dimension	Reasoning	Score
Specificity	Lists concrete outputs ('standalone SVG/HTML', 'editable Excalidraw diagrams') and several domain types (concepts, architecture, processes, flows, whiteboards), with only the single verb 'Create' limiting full coverage.	4 / 5
Completeness	Clearly states what the skill does but lacks any 'Use when...' trigger clause, capping completeness at 3 per the missing-trigger guidance.	3 / 5
Trigger Term Quality	Includes natural user terms like 'diagrams', 'architecture', 'flows', 'whiteboards', 'SVG', 'HTML', and 'Excalidraw', though a few common synonyms such as 'flowchart' are absent.	4 / 5
Distinctiveness Conflict Risk	The SVG/HTML/Excalidraw format niche and diagram-specific triggers make it mostly distinct, with only minor overlap risk against general artifact-creation skills.	4 / 5
	Total	15 / 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: iflytek/skillhub
Path: builtin-skills/skills/diagram-maker/SKILL.md
Commit: 7352597

Reviewed: 4 days ago

Table of Contents

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