json-canvas

Create and edit JSON Canvas files (.canvas) with nodes, edges, groups, and connections. Use when working with .canvas files, creating visual canvases, mind maps, flowcharts, or when the user mentions Canvas files in Obsidian.

1.08x

Quality

88%

Does it follow best practices?

Impact

100%

1.08x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Quality

Content

77%

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

This is a well-structured, highly actionable skill with clear workflows, concrete JSON examples, and thorough validation checklists. Its main weakness is length—the detailed attribute tables and repeated validation instructions make it longer than necessary, and more content could be offloaded to reference files. Overall it serves as an effective and reliable guide for creating and editing JSON Canvas files.

Suggestions

Consider moving the detailed node/edge attribute tables and complete examples into a separate reference file to keep SKILL.md as a concise overview with quick-start guidance.

Consolidate the repeated validation steps from each workflow into a single reference to the validation checklist section, reducing redundancy.

Dimension	Reasoning	Score
Conciseness	The content is mostly efficient with good use of tables and code examples, but includes some redundancy—validation steps are repeated across every workflow and again in the validation checklist. The layout guidelines and suggested dimensions tables add useful but somewhat verbose detail. The tables for node attributes could be slightly tighter.	2 / 3
Actionability	Provides fully concrete, copy-paste-ready JSON examples for every node type and edges, specific attribute tables with types and defaults, exact ID format specifications (16-char hex), and precise layout spacing values. Every instruction is specific and executable.	3 / 3
Workflow Clarity	All four workflows are clearly numbered with explicit validation steps at the end of each sequence. The validation checklist provides a comprehensive feedback loop for error recovery, and the 'if validation fails' guidance addresses common failure modes. Destructive edit operations include re-validation steps.	3 / 3
Progressive Disclosure	The skill references 'references/EXAMPLES.md' for complete examples, which is good progressive disclosure, but no bundle files were provided so we can't verify the reference exists. The main file itself is quite long (~180 lines) and could benefit from splitting the detailed node/edge attribute tables into a reference file, keeping SKILL.md as a leaner overview.	2 / 3
	Total	10 / 12 Passed

Description

100%

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

This is an excellent skill description that hits all the key criteria. It provides specific capabilities (create/edit with nodes, edges, groups, connections), includes a well-constructed 'Use when...' clause with diverse natural trigger terms (mind maps, flowcharts, Obsidian), and occupies a clearly distinct niche that minimizes conflict risk with other skills.

Dimension	Reasoning	Score
Specificity	Lists multiple specific concrete actions: 'Create and edit JSON Canvas files (.canvas) with nodes, edges, groups, and connections.' This names the domain (JSON Canvas), the file format (.canvas), and specific structural elements (nodes, edges, groups, connections).	3 / 3
Completeness	Clearly answers both 'what' (create and edit JSON Canvas files with nodes, edges, groups, and connections) and 'when' (explicit 'Use when...' clause covering .canvas files, visual canvases, mind maps, flowcharts, and Obsidian context).	3 / 3
Trigger Term Quality	Includes strong natural keywords users would say: '.canvas files', 'visual canvases', 'mind maps', 'flowcharts', 'Canvas files', 'Obsidian'. These cover multiple natural variations of how users might refer to this functionality.	3 / 3
Distinctiveness Conflict Risk	Highly distinctive with clear niche triggers: JSON Canvas, .canvas file extension, Obsidian context. Unlikely to conflict with other skills since it targets a very specific file format and ecosystem.	3 / 3
	Total	12 / 12 Passed

Validation

100%

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 — 11 / 11 Passed

Validation for skill structure

No warnings or errors.

Repository: kepano/obsidian-skills
Commit: a1dc48e

Reviewed: 8 days ago

Table of Contents

Discovery Implementation Validation

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