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diagnose-clickhouse-clusters

Diagnose ClickHouse cluster health and provide concrete remediation.

54

Quality

60%

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SecuritybySnyk

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tessl review fix ./resources/skills/diagnose-clickhouse-clusters/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

67%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 highly actionable with specific tool parameters, field names, and exact output templates, and includes solid validation logic for RCA confidence levels. Its main weakness is redundancy — 'Tool Usage Rules' and 'Critical Rules' restate the same imperatives — which hurts token efficiency.

Suggestions

Merge the duplicated rules between 'Tool Usage Rules' and 'Critical Rules' into a single canonical rules section to remove repeated imperatives (collect_cluster_status, windowed mode, no custom SQL).

Add one short worked example each for the Status-only and RCA output formats (a sample filled table) so the templates are unambiguously copy-paste ready.

Consolidate the workflow into one coherent numbered sequence with explicit feedback loops (e.g. weak candidate -> next_checks -> re-run) rather than splitting routing across multiple sections.

DimensionReasoningScore

Conciseness

The body is mostly directive and free of concept explanations Claude already knows, but the same rules are stated twice across 'Tool Usage Rules' and 'Critical Rules' (e.g. 'Call collect_cluster_status before health conclusions' vs 'ALWAYS call collect_cluster_status...', repeated windowed-mode and no-custom-SQL rules), matching the score-3 anchor of mostly efficient with some unnecessary content that could be tightened; not score 4 because the cross-section duplication is noticeable padding.

3 / 5

Actionability

Provides concrete, executable guidance — exact tool names, parameters like 'status_analysis_mode="windowed"', exact table column headers, emoji+text status requirements, and specific field names (candidate.evidence_for, support_score) — matching the score-4 anchor of mostly executable guidance with minor gaps; not score 5 because there are no worked examples (e.g. a filled-in summary or RCA table) covering the common cases end-to-end.

4 / 5

Workflow Clarity

A mandatory 3-step workflow with status-vs-RCA routing plus explicit validation logic (do not state root causes without evidence, inconclusive when support_score < 0.3, weak-candidate caveats) fits the score-4 anchor of a clear sequence with most checkpoints present; not score 5 because the workflow is fragmented across 'Tool Usage Rules', 'Workflow', and 'Critical Rules' rather than one coherent sequenced flow with explicit feedback loops.

4 / 5

Progressive Disclosure

Content is well-organized into clearly headed sections (Tool Usage Rules, Workflow, Severity Thresholds, Output Format, Critical Rules) with no nested or buried references, and all content is appropriately inline for a single-file skill, matching the score-4 anchor of good structure with minor organization gaps; not score 5 because no bundle files exist and the detailed output-format/RCA templates (~96 lines) could optionally be split into a reference file for easier navigation.

4 / 5

Total

15

/

20

Passed

Description

53%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 clear and domain-specific about what the skill does but omits any 'use when' trigger guidance, which caps completeness and weakens trigger-term quality. It is distinct as a ClickHouse-cluster diagnostic niche yet would benefit from explicit activation phrasing.

Suggestions

Add an explicit 'Use when...' clause with natural trigger phrases, e.g. 'Use when diagnosing ClickHouse cluster health, replication lag, or part-count issues, or when the user asks why a cluster is degraded.'

Broaden trigger-term coverage with synonyms users actually say ('ClickHouse lag', 'cluster unhealthy', 'root cause for ClickHouse outage') to raise trigger_term_quality.

Enumerate one or two more concrete actions (e.g. 'rank root-cause candidates', 'suggest remediation SQL') to lift specificity from 1-2 actions toward comprehensive coverage.

DimensionReasoningScore

Specificity

Quotes 'Diagnose ClickHouse cluster health and provide concrete remediation' — names the domain plus two concrete actions (diagnose, remediate), matching the score-3 anchor of 1-2 concrete actions without comprehensive coverage; not score 4 because no additional specific actions are enumerated.

3 / 5

Completeness

Provides a clear 'what' (diagnose health, provide remediation) but entirely omits a 'when/Use when...' clause, so per the judging guidelines a missing trigger clause caps completeness at 3; not score 4 because there is no explicit 'when' guidance at all.

3 / 5

Trigger Term Quality

Contains 'ClickHouse cluster health' and 'remediation' as relevant domain keywords, but lacks natural 'use when...' phrasing and common synonyms/variations users might say, fitting the score-3 anchor of some relevant keywords with missing variations; not score 4 because keyword coverage is thin and no trigger phrase is present.

3 / 5

Distinctiveness Conflict Risk

'ClickHouse cluster health' names a clear, narrow niche with minimal overlap risk versus other skills, matching the score-4 anchor of mostly distinct with minor overlap; not score 5 because no distinct trigger phrases are given to fully separate it from a general ClickHouse skill.

4 / 5

Total

13

/

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
FrankChen021/datastoria
Reviewed

Table of Contents

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