sinch-conversation-api
Sends and receives omnichannel messages with Sinch Conversation API. One unified API for SMS, WhatsApp, RCS, MMS, Viber, Messenger, and more. Use when sending texts, WhatsApp messages, rich cards, carousels, templates, batch messages, or building multi-channel messaging.
70
86%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Advisory
Suggest reviewing before use
Quality
Discovery
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 a strong skill description that clearly identifies the tool (Sinch Conversation API), lists specific supported channels and message types, and includes an explicit 'Use when' clause with natural trigger terms. It covers both what the skill does and when to use it, with highly distinctive terminology that minimizes conflict risk.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: sends and receives omnichannel messages, and enumerates specific message types like rich cards, carousels, templates, batch messages, and multi-channel messaging. | 3 / 3 |
Completeness | Clearly answers both 'what' (sends and receives omnichannel messages via Sinch Conversation API across multiple channels) and 'when' (explicit 'Use when' clause listing specific trigger scenarios like sending texts, WhatsApp messages, rich cards, etc.). | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural terms users would say: SMS, WhatsApp, RCS, MMS, Viber, Messenger, texts, WhatsApp messages, rich cards, carousels, templates, batch messages, multi-channel messaging. These are all terms a user would naturally use. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive with clear niche: Sinch Conversation API for omnichannel messaging. The specific platform names (Sinch), channel types (WhatsApp, RCS, Viber, Messenger), and message formats (rich cards, carousels) make it very unlikely to conflict with other skills. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
72%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a comprehensive and well-structured skill that provides strong actionable guidance for the Sinch Conversation API with excellent progressive disclosure to reference materials. Its main weaknesses are moderate verbosity with repeated warnings (region mismatch, Content-Type header) and lack of explicit validation checkpoints in the workflow — there's no verify-response or error-checking step after the first API call or credential setup.
Suggestions
Remove duplicate warnings about region mismatch and Content-Type headers — consolidate each into a single mention in the most relevant section.
Add an explicit validation step after the first API call (e.g., 'Verify response: expect HTTP 200 with message_id in response body; if 404, check region; if 401, re-authenticate').
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill contains some redundancy — the Content-Type header reminder is stated twice, the region mismatch warning appears in multiple sections, and some concepts like processing modes are explained at a level Claude already understands. However, most content is domain-specific and earns its place. | 2 / 3 |
Actionability | Provides fully executable curl examples, concrete script invocations with real flags, specific environment variable names, exact API endpoints, and copy-paste ready commands. The first API call example is complete and runnable. | 3 / 3 |
Workflow Clarity | The 'Agent Instructions' section provides a clear decision tree (SDK vs API, language choice), and the getting started flow is sequenced. However, there are no explicit validation checkpoints — e.g., no step to verify the token works before sending, no 'check response status' step after the first API call, and webhook setup lacks a verify-then-proceed pattern. | 2 / 3 |
Progressive Disclosure | Excellent structure with a clear overview, well-signaled references to external files (templates, batch, channels, webhooks/triggers, SDK skill, auth skill), and links section. Content is appropriately split — detailed channel docs, webhook triggers, and templates are referenced rather than inlined. | 3 / 3 |
Total | 10 / 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.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
metadata_field | 'metadata' should map string keys to string values | Warning |
Total | 10 / 11 Passed | |
- Repository
- sinch/skills
- Commit
474538d
- Reviewed
Table of Contents
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