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golang-popular-libraries

Golang library and framework selection — vetted production-ready options by category (web, database, testing, logging, messaging), new and experimental stdlib packages, standard-library-first tradeoffs, and maturity signals (maintenance, license, importer counts). Apply when the user asks for library suggestions, wants to compare alternatives, needs to choose a library for a specific task, or when a new dependency is being added to the project. Not for a specific library's API once chosen (→ See that library's dedicated skill, e.g. `samber/cc-skills-golang@golang-samber-lo`), nor for go.mod mechanics, upgrades, or vulnerability audits (→ See `samber/cc-skills-golang@golang-dependency-management` skill).

69

Quality

87%

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SKILL.md
Quality
Evals
Security

Quality

Content

78%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 well-structured catalog-style skill: the body is a concise decision framework that properly delegates the library catalogs to three real, one-level-deep reference files, with clear cross-references to companion skills for execution details. The main improvement opportunities are consolidating the repeated standard-library-first messaging and adding a brief worked example of a vetted recommendation.

Suggestions

Consolidate the standard-library-first message, which currently appears four times (Core Philosophy, General Guidelines step 2, the 'Remember' line, and Anti-Patterns), into a single authoritative statement to reclaim tokens.

Add a short worked example of one recommendation (e.g. choosing between stdlib net/http, chi, and gin for a router) showing the maturity-signal comparison in action — this would lift actionability and workflow clarity to fully executable.

Make the final workflow step an explicit checkpoint (e.g. 'Confirm the recommendation against the developer's stated constraints and dependency budget before suggesting it') to close the workflow with a validation pass.

DimensionReasoningScore

Conciseness

The body is lean and assumes Claude's Go competence, but the standard-library-first point is stated four times in slightly different forms ('Standard Library First' philosophy, 'Check standard library' guideline, 'Remember: The best library is often no library at all', and the 'Ignoring standard library alternatives' anti-pattern). This is efficient with minor trimmable redundancy — the 4 anchor, not the 5 'every token earns its place'.

4 / 5

Actionability

Concrete, executable guidance for an instruction-only skill: 'Use a module's imported-by count on pkg.go.dev as a popularity and indirect quality signal', plus specific tooling pointers (godig for importers/versions/vulnerabilities, gopls for source comparison, awesome-go for discovery). Falls short of 5 because there is no worked example of an actual recommendation with tradeoffs, so the guidance is mostly executable with minor gaps.

4 / 5

Workflow Clarity

The recommendation process is clearly sequenced: 'Assess requirements first' → 'Check standard library' → 'Prioritize maturity' → 'Consider complexity' → 'Think about dependencies', with anti-patterns as guardrails. The advisory (non-destructive) nature means the validation-checkpoint cap does not apply, but the sequence still lacks an explicit verification/feedback step (e.g. confirming the recommendation against the developer's constraints), placing it at 4 rather than 5.

4 / 5

Progressive Disclosure

Clean overview structure with three well-signaled, one-level-deep references that all exist on disk ([Standard Library - New & Experimental](./references/stdlib.md), [Libraries by Category](./references/libraries.md), [Development Tools](./references/tools.md)), each carrying its own internal organization. The bulk catalog content is appropriately split out and the SKILL.md stays a true overview, matching the 5 anchor exactly.

5 / 5

Total

17

/

20

Passed

Description

92%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 exemplary: concrete capability enumeration, explicit 'Apply when' triggers, and explicit negative scope with cross-references to sibling skills. The only gap is a handful of missing natural trigger synonyms, which keeps trigger term quality at 4 rather than 5.

DimensionReasoningScore

Specificity

Lists multiple concrete capabilities — 'vetted production-ready options by category (web, database, testing, logging, messaging), new and experimental stdlib packages, standard-library-first tradeoffs, and maturity signals (maintenance, license, importer counts)' — with comprehensive coverage of what the skill evaluates. It exceeds the 4 anchor ('several specific actions; minor gaps') because no meaningful capability is left unnamed.

5 / 5

Completeness

Explicitly answers both: what ('Golang library and framework selection — vetted production-ready options by category... maturity signals') and when ('Apply when the user asks for library suggestions, wants to compare alternatives, needs to choose a library for a specific task, or when a new dependency is being added'), with concrete trigger phrases. Also adds explicit negative scope ('Not for a specific library's API once chosen... nor for go.mod mechanics, upgrades, or vulnerability audits').

5 / 5

Trigger Term Quality

Includes natural phrases users would actually say: 'asks for library suggestions', 'wants to compare alternatives', 'needs to choose a library for a specific task', 'a new dependency is being added'. A few natural variations are missing (e.g. 'package recommendations', 'which framework should I use', 'go get'), so it fits the 4 anchor ('good keyword coverage; a few natural terms missing') rather than the comprehensive 5.

4 / 5

Distinctiveness Conflict Risk

Clear niche with explicit boundary carving: 'Not for a specific library's API once chosen (→ See that library's dedicated skill), nor for go.mod mechanics, upgrades, or vulnerability audits (→ See golang-dependency-management skill)'. The explicit exclusions and cross-references make conflict with sibling skills minimal, matching the 5 anchor.

5 / 5

Total

19

/

20

Passed

Validation

87%

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

Validation — 14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

allowed_tools_field

'allowed-tools' contains unusual tool name(s)

Warning

metadata_field

'metadata' should map string keys to string values

Warning

Total

14

/

16

Passed

Repository

samber/cc-skills-golang

Path

skills/golang-popular-libraries/SKILL.md

Reviewed

Table of Contents

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