extension-creator

Create AiderDesk extensions by setting up extension files, defining metadata, implementing Extension interface methods, and updating documentation. Use when building a new extension, creating extension commands, tools, or event handlers.

Quality

84%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

Securityby

Passed

No findings from the security scan

Quality

Content

81%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 body is highly actionable and workflow-rich with strong validation feedback loops and a well-structured reference bundle. Its main weakness is verbosity from duplicated Process Overview content and a large inlined patterns section that could be pushed to references.

Suggestions

Collapse the 'Process Overview' section or fold it into the 'Rules' flows to remove the duplicated step listings for both Project/Global and In-Repo targets.

Trim the inlined 'Common Situations' patterns to one-line summaries that link to the corresponding reference (event-types.md, extension-interface.md, ui-components.md) instead of reproducing full code blocks in SKILL.md.

De-duplicate the validate-extension-ui.mjs invocation — state the command once in the validation rule and reference it from the flow sections.

Dimension	Reasoning	Score
Conciseness	Content is dense and specific without basic-concept padding, but the 'Process Overview' section largely duplicates the 'Rules' flows and the validate command repeats three times, so it could be meaningfully tightened.	3 / 5
Actionability	Fully executable guidance throughout — copy-paste TypeScript snippets, exact method names, precise validator invocation, and concrete file paths covering the common extension cases.	5 / 5
Workflow Clarity	Both target flows are numbered with explicit validation steps (validate-extension-ui.mjs, type checking), a fix-and-revalidate feedback loop, and a Postconditions checklist for error recovery.	5 / 5
Progressive Disclosure	Clear overview with well-signaled one-level-deep references (all 11 exist) and organized assets, but the ~200-line inlined 'Common Situations' section duplicates API detail that already lives in the reference files.	4 / 5
	Total	17 / 20 Passed

Description

87%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 well-constructed: third-person voice, concrete actions, and an explicit 'Use when' clause with specific triggers. It carves out a distinct niche and answers both what and when clearly.

Dimension	Reasoning	Score
Specificity	Lists several concrete actions ('setting up extension files, defining metadata, implementing Extension interface methods, and updating documentation') but omits sub-areas like UI components and config, so it falls short of comprehensive coverage.	4 / 5
Completeness	Explicitly answers both what (the four creation actions) and when ('Use when building a new extension, creating extension commands, tools, or event handlers') with concrete trigger phrases.	5 / 5
Trigger Term Quality	Good keyword coverage with natural phrases ('building a new extension, creating extension commands, tools, or event handlers'), but lacks synonyms and file extensions that would push it to 5.	4 / 5
Distinctiveness Conflict Risk	Targets a clear niche ('AiderDesk extensions') with distinct, domain-specific triggers and minimal overlap risk with other skills.	5 / 5
	Total	18 / 20 Passed

Validation

81%

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 — 13 / 16 Passed

Validation for skill structure

Criteria	Description	Result
skill_md_line_count	SKILL.md is long (503 lines); consider splitting into references/ and linking	Warning
relative_links	Relative link issues: 8 deeper-than-1-level	Warning
referenced_paths_exist	Referenced path issues: 1 missing, 9 deeper-than-1-level	Warning

	Total	13 / 16 Passed

Repository: hotovo/aider-desk
Path: resources/skills/extension-creator/SKILL.md
Commit: 7e957a0

Reviewed: 6 days ago

Table of Contents

Discovery Implementation Validation

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.