CtrlK
BlogDocsLog inGet started
Tessl Logo

apple-container

Apple's open-source `container` CLI to build, run, and manage OCI/Linux containers as lightweight per-container VMs on Apple-silicon macOS — no Docker daemon required. Use when the user mentions the `container` CLI, "apple container", running or building containers on macOS without Docker/Podman, `container run`, `container build`, `container images`, `container system start`, pushing/pulling images to a registry, or container networking on macOS. This is Apple's `container` tool specifically (repo `apple/container`), NOT Docker, Podman, containerd, nerdctl, or Kubernetes — the CLI is Docker-like but is a different tool.

72

Quality

89%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

78%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 a well-structured overview that points to four clearly-purposed, one-level-deep reference files and gives concrete executable commands with a validation checkpoint. Main improvement area is conciseness trimming and an explicit feedback loop for destructive operations.

Suggestions

Add an explicit validate/retry feedback loop for destructive operations like `uninstall-container.sh -d` (e.g., verify services stopped with `container system status` before removing data).

Tighten a few explanatory clauses that restate the VM-per-container model more than once (the opening paragraph and the Requirements section both explain it).

Consider noting the `container system status` expected healthy output so the validation checkpoint has a concrete pass/fail signal.

DimensionReasoningScore

Conciseness

Mostly efficient and assumes Claude's competence; non-obvious specifics (VM-per-container, launchd, Containerization framework) earn their place, though a few explanatory clauses could be trimmed slightly.

4 / 5

Actionability

Provides concrete executable commands (`container system start`, `container system status`, `container run --rm -it docker.io/library/alpine sh`, `container build -t myapp:latest .`, upgrade/uninstall scripts) with full flag detail correctly offloaded to reference files.

4 / 5

Workflow Clarity

Setup is a clear numbered sequence with an explicit validation checkpoint (`container system status`) and error-recovery guidance; falls short of 5 because the destructive uninstall path lacks an explicit validate/retry feedback loop.

4 / 5

Progressive Disclosure

Clear overview with four well-signaled one-level-deep reference files, each given a "Read this to…" purpose, all verified to exist with no nested references.

5 / 5

Total

17

/

20

Passed

Description

100%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 excellent: third-person, concise, and comprehensive. It clearly states what the tool does, when to use it with concrete triggers, and how it differs from similar tools. No changes needed.

DimensionReasoningScore

Specificity

Names the tool and multiple concrete actions ("build, run, and manage", "pushing/pulling images", "container networking", plus specific subcommands like `container run`/`build`/`images`/`system start`), giving comprehensive coverage of capabilities.

5 / 5

Completeness

Explicitly answers what (build/run/manage OCI containers as per-container VMs on Apple-silicon macOS) and when (an explicit "Use when the user mentions…" clause with concrete trigger phrases).

5 / 5

Trigger Term Quality

Comprehensive natural-language triggers users would actually say — "apple container", "running or building containers on macOS without Docker/Podman", plus concrete CLI subcommand phrases as triggers.

5 / 5

Distinctiveness Conflict Risk

Explicitly disambiguates from Docker, Podman, containerd, nerdctl, and Kubernetes, carving a clear niche with minimal conflict risk.

5 / 5

Total

20

/

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
sanjay3290/ai-skills
Reviewed

Table of Contents

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.