CtrlK
BlogDocsLog inGet started
Tessl Logo

service-mesh-expert

Expert service mesh architect specializing in Istio, Linkerd, and cloud-native networking patterns. Masters traffic management, security policies, observability integration, and multi-cluster mesh con

38

Quality

36%

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

Fix and improve this skill with Tessl

tessl review fix ./plugins/AI-Agents-Safe-Coding-Skills/skills/service-mesh-expert/SKILL.md

The canonical home for this skill is service-mesh-expert in administrakt0r/AI-Agents-Safe-Coding-Skills

SKILL.md
Quality
Evals
Security

Quality

Content

28%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This skill reads as a high-level outline or table of contents rather than actionable guidance. It completely lacks concrete code examples, YAML manifests, CLI commands, or any executable content that would help Claude implement service mesh configurations. The workflow is too abstract to be useful, and the referenced implementation playbook is not provided in the bundle, leaving the skill hollow.

Suggestions

Add concrete, executable examples: include at minimum an Istio VirtualService YAML for traffic splitting, an AuthorizationPolicy for mTLS enforcement, and kubectl commands for common mesh operations.

Flesh out the workflow with specific commands and validation checkpoints, e.g., 'Verify mTLS is active: `istioctl x describe pod <pod>` — confirm mTLS status shows STRICT'.

Provide the referenced `resources/implementation-playbook.md` bundle file with detailed implementation patterns, or inline the most critical patterns directly in the skill.

Remove redundant sections ('Capabilities' and 'Use this skill when' overlap heavily; 'Do not use this skill when' adds no value) to improve conciseness.

DimensionReasoningScore

Conciseness

The skill contains several sections that are somewhat redundant or unnecessary (e.g., 'Capabilities' and 'Use this skill when' overlap significantly, and the 'Do not use this skill when' section is trivially obvious). The best practices section is reasonable but some items are things Claude would already know. Not severely verbose, but could be tightened.

3 / 5

Actionability

The skill provides no concrete code, commands, YAML manifests, or executable examples whatsoever. Everything is abstract guidance like 'Implement security policies' and 'Configure observability' without any specific commands, configuration snippets, or copy-paste ready content. For a service mesh skill, the absence of any Istio/Linkerd YAML, kubectl commands, or configuration examples is a critical gap.

1 / 5

Workflow Clarity

A rough sequence of 7 steps is listed but they are extremely high-level with no concrete substeps, no validation checkpoints, and no feedback loops. Steps like 'Test failover and resilience patterns' lack any specifics on how to test or what constitutes success. For operations involving mesh configuration (which can break service communication), the absence of validation steps is a significant gap.

2 / 5

Progressive Disclosure

The skill references `resources/implementation-playbook.md` for detailed examples, which is a good progressive disclosure pattern. However, no bundle files are provided, so this reference is unverifiable and potentially broken. The main file's structure with multiple sections is reasonable but the content within sections is thin, suggesting the referenced file would need to carry most of the actual value.

3 / 5

Total

9

/

20

Passed

Description

45%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 identifies a clear domain (service mesh architecture) and names specific technologies (Istio, Linkerd), which aids distinctiveness. However, it is truncated, lacks a 'Use when...' clause, uses persona-style framing ('Expert service mesh architect') rather than action-oriented third-person descriptions, and lists capability areas at a high level rather than concrete actions.

Suggestions

Add an explicit 'Use when...' clause with trigger phrases like 'Use when the user asks about service mesh configuration, Istio/Linkerd setup, sidecar proxies, mTLS, or traffic routing policies'.

Replace the persona framing ('Expert service mesh architect specializing in...') with action-oriented third-person language (e.g., 'Configures and troubleshoots service mesh deployments using Istio and Linkerd').

Ensure the description is not truncated and expand high-level categories into concrete actions (e.g., 'Configures traffic routing rules, sets up mTLS policies, integrates with Prometheus/Grafana for observability, manages multi-cluster mesh federation').

DimensionReasoningScore

Specificity

Names the domain (service mesh) and lists several capability areas (traffic management, security policies, observability integration, multi-cluster mesh), but these are high-level categories rather than concrete actions. The description also appears truncated, cutting off mid-word.

3 / 5

Completeness

Provides a partial 'what' (specializing in service mesh technologies and patterns) but has no 'when' clause at all. The description is also truncated, further reducing completeness. The missing 'Use when...' clause caps this at 3, and the vagueness of the 'what' brings it down to 2.

2 / 5

Trigger Term Quality

Includes relevant keywords like 'Istio', 'Linkerd', 'service mesh', 'traffic management', and 'cloud-native networking', which users might naturally mention. However, it's missing common variations, synonyms, and related terms like 'sidecar proxy', 'mTLS', 'ingress gateway', 'envoy', or 'kubernetes networking'.

3 / 5

Distinctiveness Conflict Risk

Service mesh architecture with specific tool names (Istio, Linkerd) is a fairly distinct niche. There's minor overlap risk with general Kubernetes or cloud-native networking skills, but the explicit mention of mesh-specific technologies helps differentiate it.

4 / 5

Total

12

/

20

Passed

Validation

90%

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

Validation10 / 11 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

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

Warning

Total

10

/

11

Passed

Repository
administrakt0r/AI-Agents-Safe-Coding-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.