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sinch-partnerships-ecosystems/sinch-skills

Official Sinch API skills for AI coding agents — SMS, Voice, Verification, Numbers, Mailgun email, and more.

71

Quality

88%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Advisory

Suggest reviewing before use

This plugin was archived by the owner on Jun 4, 2026

Reason: we moved this to another workspace

Overview
Quality
Evals
Security
Files

Quality

Content

57%

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

This is a well-structured routing/overview skill with excellent progressive disclosure and useful reference tables (product coverage, installation). Its main weakness is the lack of any inline executable code — all init examples are deferred to reference files — which reduces actionability for the main skill body. The Common Patterns section adds little value beyond what's already stated elsewhere.

Suggestions

Include at least one minimal inline init code example (e.g., Node.js project-scoped) so the skill body is independently actionable without requiring reference file access.

Add a brief verification step to the workflow (e.g., 'After init, test connectivity by calling sinchClient.numbers.list() or equivalent') to confirm credentials are working.

Remove or consolidate the 'Common Patterns' section, which mostly repeats information from Key Concepts and just points to references without adding new guidance.

DimensionReasoningScore

Conciseness

Generally efficient with good use of tables, but the 'Key Concepts' and 'Common Patterns' sections contain some redundancy (e.g., 'Common Patterns' mostly just says 'see language-specific ref' without adding value). The 'Overview' section restates what the description already conveys. Some tightening possible.

2 / 3

Actionability

The install commands are concrete and the product coverage table is very useful, but the actual initialization code is deferred entirely to reference files (which are not provided). The skill body itself contains no executable init code examples, leaving Claude dependent on references that may or may not exist.

2 / 3

Workflow Clarity

The decision flow is reasonably clear (ask language → check product coverage → use init reference), but there's no explicit step-by-step workflow with validation checkpoints. The 'Agent Instructions' section is minimal. For a skill involving credential setup, a verification step (e.g., 'test the client by calling X') would strengthen this.

2 / 3

Progressive Disclosure

Excellent structure with a clear overview, well-organized tables for quick lookup, and one-level-deep references to language-specific init files. Navigation is well-signaled with links to four language-specific reference files and cross-references to related skills (authentication, in-app calling).

3 / 3

Total

9

/

12

Passed

Description

100%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

This is an excellent skill description that clearly defines its scope (Sinch SDK installation and initialization across four languages), provides explicit trigger conditions via a 'Use when...' clause, and even disambiguates from a related skill. It is concise, uses third-person voice, and includes natural keywords that developers would use.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: SDK installation, client initialization, setting up credentials, configuring conversation region, and building multi-product SDK clients. Also specifies the supported languages (Node.js, Python, Java, .NET).

3 / 3

Completeness

Clearly answers both 'what' (SDK installation and client initialization for multiple languages) and 'when' (explicit 'Use when...' clause listing five specific trigger scenarios). Also includes a disambiguation note pointing to a related skill for In-App Calling.

3 / 3

Trigger Term Quality

Includes natural keywords users would say: 'Sinch SDK', 'install', 'SinchClient', 'SDK credentials', 'conversation region', 'Node.js', 'Python', 'Java', '.NET'. These are terms developers would naturally use when seeking help with Sinch SDK setup.

3 / 3

Distinctiveness Conflict Risk

Highly distinctive with a clear niche (Sinch SDK setup/initialization) and explicit disambiguation from the related 'sinch-in-app-calling' skill. The specific product name and actions make it unlikely to conflict with other skills.

3 / 3

Total

12

/

12

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

metadata_field

'metadata' should map string keys to string values

Warning

Total

10

/

11

Passed

Reviewed

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