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creating-sbx-templates

Build a Docker Sandbox template image by extending docker/sandbox-templates. Use when writing a Dockerfile for sbx, choosing a base variant, building a family of templates with bake, or publishing and loading one with sbx template.

72

Quality

87%

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SecuritybySnyk

Passed

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SKILL.md
Quality
Evals
Security

Quality

Content

82%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 with executable code and commands, well-structured, and uses real bundle assets for deeper material rather than inlining everything. It is concise and avoids explaining basics Claude already knows.

Suggestions

Add an explicit validate/retry checkpoint (e.g. 'build, then sbx run to smoke-test before pushing') to the Publish and save workflows, which involve destructive or hard-to-reverse operations.

Trim the anecdotal asides (e.g. 'four authors in the wild disagreed') to tighten conciseness further.

Consider moving the load-bearing LABEL flavor note into the asset Dockerfile or a short warning block so the main body stays a pure overview.

DimensionReasoningScore

Conciseness

Lean and assumes competence throughout, though a few explanatory asides ('four authors in the wild disagreed about it') add mild color that could be trimmed; every line mostly earns its place.

4 / 5

Actionability

Provides copy-paste-ready Dockerfile snippets, bake commands, and sbx commands covering the common cases, with fuller versions delegated to the asset files.

5 / 5

Workflow Clarity

Clear sectioned sequence (pick base -> write Dockerfile -> bake family -> publish/run -> save), with verification touches like 'bake --list=targets' and the Last-verified note, but lacks explicit validate->fix->retry feedback loops for the destructive publish/save operations.

4 / 5

Progressive Disclosure

Well-organized sections with clearly signaled one-level-deep references to assets/Dockerfile and assets/docker-bake.hcl, both of which exist in the bundle; the matrix detail is appropriately deferred to the asset file.

4 / 5

Total

17

/

20

Passed

Description

92%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 concise yet comprehensive, naming concrete actions and an explicit 'Use when' trigger clause with multiple natural phrases. Its contrast with the sibling kit skill makes it highly distinct and low conflict-risk.

DimensionReasoningScore

Specificity

Lists multiple concrete actions (build a Docker Sandbox template image, extend docker/sandbox-templates, choose a base variant, build a family with bake, publish and load with sbx template), giving comprehensive coverage of what the skill does.

5 / 5

Completeness

Explicitly answers what ('Build a Docker Sandbox template image by extending docker/sandbox-templates') and when ('Use when writing a Dockerfile for sbx, choosing a base variant, building a family of templates with bake, or publishing and loading one with sbx template') with concrete trigger phrases.

5 / 5

Trigger Term Quality

Natural trigger phrases like 'writing a Dockerfile for sbx', 'choosing a base variant', 'building a family of templates with bake', and 'publishing and loading' are present, though synonyms and bare tool extensions are not exhaustively enumerated.

4 / 5

Distinctiveness Conflict Risk

The niche is narrow and clearly framed against the sibling kit skill (reach for creating-sbx-kits when the answer is a spec field), minimizing conflict risk for the wrong skill.

5 / 5

Total

19

/

20

Passed

Validation

100%

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

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
slurpyb/sbx-agent
Reviewed

Table of Contents

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