customerio-hello-world
Create a minimal working Customer.io example. Use when learning Customer.io basics, testing SDK setup, or creating your first identify + track integration. Trigger: "customer.io hello world", "first customer.io message", "test customer.io", "customer.io example", "customer.io quickstart".
85
83%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Quality
Discovery
89%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 solid skill description with excellent trigger terms and clear 'what/when' guidance. Its main weakness is that the 'what' could be more specific about the concrete actions or outputs (e.g., what the example actually produces). The distinctiveness is strong due to the narrow Customer.io focus.
Suggestions
Add more specific concrete actions to the 'what' portion, e.g., 'Creates a Node.js script that initializes the Customer.io SDK, identifies a user, and sends a track event.'
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | It names the domain (Customer.io) and mentions some actions ('identify + track integration', 'SDK setup'), but doesn't list multiple concrete actions comprehensively—e.g., it doesn't specify what the example includes beyond 'minimal working example'. | 2 / 3 |
Completeness | Clearly answers both 'what' (create a minimal working Customer.io example with identify + track integration) and 'when' (learning basics, testing SDK setup, creating first integration) with explicit trigger terms. | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural trigger terms users would say: 'customer.io hello world', 'first customer.io message', 'test customer.io', 'customer.io example', 'customer.io quickstart'. These are realistic phrases a user would type. | 3 / 3 |
Distinctiveness Conflict Risk | Very distinct niche—Customer.io hello world/quickstart is unlikely to conflict with other skills. The specific product name and 'hello world' framing create a clear, narrow scope. | 3 / 3 |
Total | 11 / 12 Passed |
Implementation
77%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a solid, actionable quickstart skill with executable code examples and clear sequencing. Its main weakness is length — for a 'hello world' skill it covers four distinct operations (identify, track, anonymous track, transactional email) with some redundancy between step-by-step and complete example sections. The error handling table and dashboard verification step are strong additions.
Suggestions
Consider trimming the complete example section since it largely duplicates Steps 1-2, or remove the per-step code and keep only the complete example to reduce redundancy.
Move Steps 3 (anonymous events) and 4 (transactional email) to a separate reference file — a 'hello world' skill should focus on the minimal identify + track flow, with links to these advanced topics.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is mostly efficient but includes some unnecessary commentary (e.g., explaining what identify() does when the code and key rules already make it clear, repeating concepts across steps and the complete example). The inline comments are helpful but some are redundant with the 'Key rules' sections. | 2 / 3 |
Actionability | All code examples are fully executable TypeScript with real imports, proper client initialization, and copy-paste ready snippets. The complete example at the end is runnable with a single command. Key rules sections provide specific, concrete gotchas (Unix seconds not ms, snake_case naming, case sensitivity). | 3 / 3 |
Workflow Clarity | Steps are clearly sequenced (identify → track → anonymous → transactional → verify), with an explicit Step 5 for dashboard verification. The error handling table serves as a troubleshooting checkpoint. The ordering constraint (identify before track) is explicitly called out. | 3 / 3 |
Progressive Disclosure | The skill has good section structure and links to external resources, but the content is quite long for a 'hello world' skill. The complete example largely duplicates Steps 1-2, and the anonymous event + transactional email sections could arguably be separate skills or referenced files rather than inline. The 'Next Steps' reference to customerio-local-dev-loop is good progressive disclosure. | 2 / 3 |
Total | 10 / 12 Passed |
Validation
81%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 9 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
allowed_tools_field | 'allowed-tools' contains unusual tool name(s) | Warning |
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 9 / 11 Passed | |
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