Configure this skill configures service meshes like istio and linkerd for microservices. it generates production-ready configurations, implements best practices, and ensures a security-first approach. use this skill when the user asks to "configure service ... Use when appropriate context detected. Trigger with relevant phrases based on skill purpose.
45
33%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./plugins/devops/service-mesh-configurator/skills/configuring-service-meshes/SKILL.mdQuality
Discovery
32%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 starts reasonably by naming specific tools (Istio, Linkerd) and the domain (service meshes, microservices), but it is severely undermined by a truncated trigger phrase and a completely generic, placeholder 'Use when' clause that provides no actionable guidance. The inclusion of buzzwords like 'best practices' and 'security-first approach' adds fluff without specificity.
Suggestions
Replace the placeholder 'Use when appropriate context detected. Trigger with relevant phrases based on skill purpose.' with explicit trigger conditions, e.g., 'Use when the user asks to configure service meshes, set up Istio or Linkerd, implement mTLS, manage traffic routing, or deploy sidecar proxies.'
Complete the truncated phrase 'use this skill when the user asks to configure service ...' and list concrete actions such as 'generate Istio VirtualService and DestinationRule manifests, configure mTLS policies, set up traffic splitting, and deploy Linkerd service profiles.'
Remove vague buzzwords like 'best practices' and 'security-first approach' and replace with specific capabilities such as 'configures mutual TLS, retry policies, circuit breakers, and observability integrations.'
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (service meshes) and specific tools (Istio, Linkerd) with some actions like 'generates production-ready configurations' and 'implements best practices,' but 'best practices' and 'security-first approach' are vague buzzwords rather than concrete actions. | 2 / 3 |
Completeness | The 'what' is partially addressed but the 'when' clause is essentially a placeholder — 'Use when appropriate context detected. Trigger with relevant phrases based on skill purpose' is meaningless boilerplate that provides no explicit trigger guidance. The truncated 'use this skill when the user asks to configure service ...' further undermines completeness. | 1 / 3 |
Trigger Term Quality | Includes some relevant keywords like 'service mesh,' 'Istio,' 'Linkerd,' and 'microservices,' but the trigger phrase is truncated ('configure service ...') and the generic 'Trigger with relevant phrases based on skill purpose' adds no useful keywords. Missing natural variations users might say. | 2 / 3 |
Distinctiveness Conflict Risk | Naming Istio and Linkerd specifically helps distinguish it from generic infrastructure skills, but the vague trailing text and buzzwords like 'best practices' and 'security-first' could overlap with other DevOps/infrastructure skills. | 2 / 3 |
Total | 7 / 12 Passed |
Implementation
35%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill provides a broad overview of service mesh configuration but lacks the concrete, executable examples that would make it truly actionable—no YAML manifests, no complete configuration blocks, just high-level instructions. The error handling table is a strength, but the absence of actual configuration code for the primary deliverables (mTLS policies, VirtualServices, DestinationRules) significantly undermines its utility. The workflow would benefit from explicit validation checkpoints and feedback loops given the production-critical nature of the operations.
Suggestions
Add complete, executable YAML manifests for key configurations: PeerAuthentication with STRICT mTLS, a VirtualService with canary traffic splitting, and a DestinationRule with circuit breaker settings.
Include explicit validation checkpoints with feedback loops after critical steps (e.g., after mTLS configuration: run `istioctl authn tls-check`, if errors appear, switch to PERMISSIVE and debug).
Consider splitting mesh-specific guidance into separate referenced files (e.g., ISTIO.md, LINKERD.md) to keep the main skill as a concise overview with clear navigation.
Replace the Examples section (which just lists user prompts) with concrete input/output examples showing a request and the expected generated YAML configuration.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is reasonably structured but includes some unnecessary sections like Prerequisites listing things Claude would already know (e.g., 'Understanding of microservice communication patterns'). The Examples section describes prompts rather than showing concrete outputs, adding bulk without value. | 2 / 3 |
Actionability | Despite covering a complex topic, the skill provides no actual YAML manifests, no executable code blocks for the configurations it claims to generate (PeerAuthentication, VirtualService, DestinationRule, etc.). The instructions are high-level descriptions rather than concrete, copy-paste-ready configurations. | 1 / 3 |
Workflow Clarity | Steps are listed in a logical sequence and step 9 includes validation commands, but there are no explicit feedback loops (validate -> fix -> retry) for what are clearly risky operations on production infrastructure. Missing checkpoints between critical steps like mTLS configuration and traffic splitting. | 2 / 3 |
Progressive Disclosure | The content is organized into clear sections (Overview, Instructions, Error Handling, etc.), but it's somewhat monolithic—all three mesh types are covered inline without separation. The Resources section links to external docs but there are no references to supplementary skill files for detailed configurations per mesh type. | 2 / 3 |
Total | 7 / 12 Passed |
Validation
81%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 9 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
allowed_tools_field | 'allowed-tools' contains unusual tool name(s) | Warning |
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 9 / 11 Passed | |
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Table of Contents
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