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kubernetes-architect

Expert Kubernetes architect specializing in cloud-native infrastructure, advanced GitOps workflows (ArgoCD/Flux), and enterprise container orchestration. Masters EKS/AKS/GKE, service mesh (Istio/Linkerd), progressive delivery, multi-tenancy, and platform engineering. Handles security, observability, cost optimization, and developer experience. Use for K8s architecture, GitOps implementation, or cloud-native platform design.

Quality

69%

Does it follow best practices?

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SecuritybySnyk

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tessl review fix ./skills/kubernetes-architect/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

35%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 reads as a persona prompt rather than an operational skill: its strongest parts are the crisp Use/Do-not-use scoping, the 4-step instruction sequence, and the safety notes, but roughly two-thirds of the content is a catalog of technologies Claude already knows with no executable guidance. It would score much higher if the capability catalog were moved to reference files and replaced with concrete patterns, examples, and decision heuristics.

Suggestions

Replace the ~75-line Capabilities catalog and the redundant Purpose/Knowledge Base/Behavioral Traits sections with concrete, executable guidance: example GitOps repo structures (app-of-apps layout), sample Argo Rollouts canary YAML, and decision heuristics such as when to choose Flux vs ArgoCD or Istio vs Linkerd.

Cut the duplicated OpenGitOps principles (stated in both the GitOps section and its own section) and the Purpose section that repeats the frontmatter description; a persona skill this size should be well under 50 lines.

Tighten the Instructions and Response Approach into a single workflow with explicit validation checkpoints and feedback loops (e.g., 'validate policy changes in staging; only promote when admission tests pass; otherwise iterate'), and move detailed checklists to references/ files so SKILL.md stays a lean overview.

DimensionReasoningScore

Conciseness

The body is ~160 lines dominated by a technology catalog Claude already knows ('Managed Kubernetes: EKS (AWS), AKS (Azure), GKE...', 'Metrics: Prometheus, VictoriaMetrics, Thanos'), a 'Purpose' section duplicating the frontmatter description, a generic 'Knowledge Base' list, and OpenGitOps principles stated twice (under GitOps & Continuous Deployment and again as its own section). This is noticeably verbose with several padded sections; not 1 because it never prose-explains basics and the Use/Do-not-use and Instructions sections are tight.

2 / 5

Actionability

The guidance is high-level direction without executable specifics: 'Define cluster topology, networking, and security boundaries' and 'Choose GitOps tooling and delivery strategy' state goals, not how to reach them. There are no commands, example manifests, repository structure patterns, or decision heuristics (e.g., Flux vs ArgoCD criteria); the body mostly describes capabilities rather than instructing. Not 3 because no section provides concrete executable detail of any kind.

2 / 5

Workflow Clarity

Instructions give a clear 4-step sequence (gather requirements, define topology, choose tooling, validate) and the Safety section adds 'Test policy changes and admission controls in staging first', so validation is mentioned. However, checkpoints are implicit with no feedback loops or error-recovery guidance (no 'if validation fails, do X'), matching the anchor for steps listed with validation gaps; not 4 because validation lacks checkpoint structure and commands.

3 / 5

Progressive Disclosure

The body is well-sectioned with clear ## and ### headers, but ~100 lines of capability catalog, behavioral traits, and knowledge-base content are inlined in SKILL.md where they belong in separate reference files, and no references/ files exist to offload detail. This matches 'some structure but could be better organized; content that should be separate is inline'; not 2 because the structure is genuinely clear, not minimal.

3 / 5

Total

10

/

20

Passed

Description

91%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: it explicitly states what the skill covers with named technologies, uses third person, includes both the Kubernetes/K8s synonym pair, and closes with a concrete 'Use for...' trigger clause. The main weaknesses are role-claim verbs instead of concrete actions and a broad trailing capability list ('security, observability, cost optimization') that slightly raises overlap risk with neighboring skills.

DimensionReasoningScore

Specificity

Phrases like 'advanced GitOps workflows (ArgoCD/Flux)' and 'Masters EKS/AKS/GKE, service mesh (Istio/Linkerd)' name concrete technologies with broad coverage, but the verbs are role claims ('Masters', 'Handles', 'specializing in') rather than concrete operations like 'designs cluster topology'. This sits between anchor 3 (1-2 concrete actions) and anchor 5 (comprehensive concrete actions): broader and more tool-specific than 3, but not action-verb concrete enough for 5.

4 / 5

Completeness

The 'what' is explicit ('Expert Kubernetes architect specializing in... Masters... Handles...') and the 'when' is an explicit trigger clause with concrete phrases ('Use for K8s architecture, GitOps implementation, or cloud-native platform design'). Matches the anchor for clearly answering both with concrete triggers; not 4 because the when-clause is already specific and does not need more explicitness.

5 / 5

Trigger Term Quality

'Use for K8s architecture, GitOps implementation, or cloud-native platform design' covers the natural phrases users would say, and both synonyms 'Kubernetes' and 'K8s' appear alongside tool names (ArgoCD, Flux, EKS, Istio) users actually mention. Matches the comprehensive-synonyms anchor; not 4 because no common natural variation in this domain is missing.

5 / 5

Distinctiveness Conflict Risk

The trigger clause is tightly scoped to the Kubernetes platform niche ('K8s architecture, GitOps implementation, cloud-native platform design'), giving distinct triggers. However, 'Handles security, observability, cost optimization, and developer experience' claims territory that overlaps closely related dedicated skills (security review, CI/CD, IaC/Terraform), matching 'mostly distinct; minor overlap risk' rather than minimal conflict risk.

4 / 5

Total

18

/

20

Passed

Validation

93%

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

Validation — 15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

Total

15

/

16

Passed

Repository

rmyndharis/antigravity-skills

Path

skills/kubernetes-architect/SKILL.md

Reviewed

Table of Contents

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