CtrlK
BlogDocsLog inGet started
Tessl Logo

kubernetes-operator

Use when building a Kubernetes Operator — custom controllers that reconcile CRD state. Triggers on "build an operator", "CRD design", "reconcile loop", "controller-runtime", "kubebuilder", "operator-sdk", "metacontroller", "KOPF", "operator capability levels", or "custom resource". Ships CRD validator, reconcile-loop linter, and OperatorHub capability auditor (all stdlib Python), 4 references on the operator pattern + CRD design + reconcile patterns + tooling landscape, and a /operator-audit slash command. NOT a generic k8s skill — specifically the Operator pattern.

74

Quality

93%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

The risk profile of this skill

The canonical home for this skill is kubernetes-operator in alirezarezvani/claude-skills

SKILL.md
Quality
Evals
Security

Quality

Content

86%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 dense, well-structured body: executable quick start, three concrete tools with explicit checks, comparison table, principle summaries that defer to references, and three sequenced workflows. Minor redundancy and implicit validation loops keep it just short of perfect conciseness.

Suggestions

Collapse the overlap between the 'Core principle' failure-modes list, 'Reconcile loop principles', and 'Anti-patterns' into a single canonical list to trim tokens.

Make the workflow validation feedback loops explicit (e.g. 'if reconcile_lint reports FAIL, fix and re-run until clean') rather than implied by 'Fix every WARN'.

DimensionReasoningScore

Conciseness

Lean and assumes Claude's competence — no basic k8s/CRD explanations — but the failure-modes list, reconcile principles, and anti-patterns sections overlap mildly, which could be tightened.

4 / 5

Actionability

Copy-paste ready commands for all three tools ('python scripts/crd_validator.py --crd ...'), per-tool check lists, concrete workflows, and shipped asset templates cover the common cases fully.

5 / 5

Workflow Clarity

Three numbered workflows with validation gates ('Fix every WARN before writing controller code', 'confirm L1', FAIL/WARN triage), though explicit fix-and-revalidate feedback loops are implied rather than spelled out.

4 / 5

Progressive Disclosure

Clear overview with well-signaled one-level-deep references ('See references/crd_design.md for full detail. Quick rules:') — all four references, three scripts, and two assets exist and are correctly linked.

5 / 5

Total

18

/

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.

An exemplary description: concrete actions, comprehensive natural triggers, explicit what/when guidance, and a sharp boundary against the generic k8s category. No padding or vague fluff.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions — 'CRD validator, reconcile-loop linter, and OperatorHub capability auditor' plus references and a slash command — giving comprehensive coverage of what the skill ships.

5 / 5

Completeness

Explicitly answers both what ('custom controllers that reconcile CRD state' + shipped tools/references/command) and when ('Use when building a Kubernetes Operator... Triggers on...') with concrete trigger phrases.

5 / 5

Trigger Term Quality

Comprehensive natural trigger terms including synonyms and tool names — 'build an operator', 'CRD design', 'reconcile loop', 'controller-runtime', 'kubebuilder', 'operator-sdk', 'metacontroller', 'KOPF', 'operator capability levels', 'custom resource'.

5 / 5

Distinctiveness Conflict Risk

Clear niche with distinct triggers and an explicit boundary statement ('NOT a generic k8s skill — specifically the Operator pattern') minimizing conflict risk with adjacent k8s skills.

5 / 5

Total

20

/

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.

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

15

/

16

Passed

Repository
alirezarezvani/claude-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.