docker-build-push

Builds and pushes the MockServer Maven CI Docker image locally. Covers corporate CA certificate setup, architecture selection (amd64 vs arm64), buildx gotchas with corporate TLS proxies, and Docker Hub authentication. Use when the user says "build docker image", "push maven image", "rebuild CI image", "docker build", "push to docker hub", or needs to manually build/push the mockserver/mockserver:maven image outside of CI.

Quality

88%

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Securityby

Passed

No findings from the security scan

Quality

Content

88%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.

A tightly written, highly actionable skill: every step is executable, verification precedes and follows the push, and hard-won gotchas (builder driver TLS inheritance, cross-arch emulation timing) are conveyed with minimal tokens. The only meaningful deductions are stale-prone pinned versions and no forward structure for offloading content as the skill grows.

Dimension	Reasoning	Score
Conciseness	Lean and efficient throughout — no padding or explanations of concepts Claude already knows, and even the gotcha explanations are limited to what changes the command used. Minor deduction for pinned version metadata ('Ubuntu 24.04, OpenJDK 21, Maven 3.9.16') which is time-sensitive and not placed in a deprecated/old-patterns section.	4 / 5
Actionability	Fully executable, copy-paste-ready commands in every step (docker buildx build with --builder desktop-linux --platform linux/amd64 --load, docker inspect, docker manifest inspect piped through python3) plus a concrete PAT creation procedure, covering the common cases including cross-architecture builds.	5 / 5
Workflow Clarity	Clear Step 1-5 sequence with explicit validation checkpoints (Step 3 verifies the image and architecture before pushing; post-push manifest inspection confirms the remote architecture) and a troubleshooting table that maps concrete error messages to fixes, providing feedback loops for error recovery.	5 / 5
Progressive Disclosure	Single-file skill with no bundle directories; sections are well organized with a quick-reference workflow summary, and it appropriately delegates credential management to the external 'dockerhub-credentials' skill. Minor organization gaps remain — e.g., the troubleshooting table would belong in a reference file if the skill grows.	4 / 5
	Total	18 / 20 Passed

Description

88%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 description with a clear what/when structure, concrete third-person capability statements, and mostly natural trigger phrases. Its only weaknesses are a couple of missing trigger synonyms and generic Docker trigger terms that create minor conflict risk with unrelated Docker build requests.

Dimension	Reasoning	Score
Specificity	Lists multiple concrete actions ('Builds and pushes the MockServer Maven CI Docker image locally', 'corporate CA certificate setup', 'architecture selection (amd64 vs arm64)', 'buildx gotchas with corporate TLS proxies', and 'Docker Hub authentication') in third person with comprehensive coverage of the task's scope.	5 / 5
Completeness	Explicitly answers both what ('Builds and pushes the MockServer Maven CI Docker image locally' plus a coverage list) and when ('Use when the user says ... or needs to manually build/push the mockserver/mockserver:maven image outside of CI') with concrete trigger phrases.	5 / 5
Trigger Term Quality	Good natural phrases users would say ('build docker image', 'push maven image', 'rebuild CI image', 'docker build', 'push to docker hub'), but a few natural variants like 'docker push' or 'docker hub login' are missing — fits the 'good coverage, a few natural terms missing' anchor rather than the comprehensive one.	4 / 5
Distinctiveness Conflict Risk	Anchored to a niche image (mockserver/mockserver:maven) making it mostly distinct, but generic triggers like 'docker build' and 'build docker image' could fire for unrelated Docker builds — minor overlap risk with generic container skills.	4 / 5
	Total	18 / 20 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 — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository: mock-server/mockserver-monorepo
Path: .opencode/skills/docker-build-push/SKILL.md
Commit: f66c975

Reviewed: 5 days ago

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