Implement Customer.io primary messaging workflow. Use when setting up campaign triggers, welcome sequences, onboarding flows, or event-driven email automation. Trigger: "customer.io campaign", "customer.io workflow", "customer.io email automation", "customer.io messaging", "customer.io onboarding".
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 that clearly identifies its platform (Customer.io) and provides explicit trigger guidance. Its main weakness is that the capability descriptions are somewhat category-level rather than listing granular concrete actions. The explicit 'Use when' and 'Trigger' sections make it highly functional for skill selection.
Suggestions
Add more specific concrete actions such as 'configure event triggers', 'build segment filters', 'set up delay steps', or 'create liquid template variables' to improve specificity.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (Customer.io messaging workflow) and some actions (campaign triggers, welcome sequences, onboarding flows, event-driven email automation), but doesn't list truly concrete actions like 'create segments', 'configure webhooks', or 'set delay timers'. The actions are more category-level than step-level. | 2 / 3 |
Completeness | Clearly answers both 'what' (implement Customer.io primary messaging workflow including campaign triggers, welcome sequences, onboarding flows, event-driven email automation) and 'when' (explicit 'Use when' clause plus a dedicated 'Trigger' list with specific phrases). | 3 / 3 |
Trigger Term Quality | Includes a well-structured set of natural trigger terms that users would actually say: 'customer.io campaign', 'customer.io workflow', 'customer.io email automation', 'customer.io messaging', 'customer.io onboarding'. These cover the main variations a user would naturally use when requesting this skill. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive due to the specific platform name 'Customer.io' and the focused domain of messaging workflows. Very unlikely to conflict with other skills unless there are multiple Customer.io skills, in which case the 'primary messaging workflow' scope helps differentiate. | 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 skill with excellent executable code examples and clear workflow sequencing. Its main weakness is length — the repetitive service methods and exhaustive event taxonomy inflate the token cost without proportional value. The content would benefit from showing the core pattern once and referencing a separate file for the full implementation.
Suggestions
Reduce the MessagingService to 2 representative methods (e.g., onSignup and onCancellation) and note the pattern applies to other lifecycle events, rather than showing 5 nearly identical identify+track methods.
Move the full CIO_EVENTS taxonomy and Liquid variables/error handling tables to a separate reference file (e.g., CUSTOMERIO-REFERENCE.md) and link to it from the skill.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is reasonably well-structured but includes some unnecessary verbosity. The full event taxonomy with 15+ events (commerce, lifecycle, etc.) is more exhaustive than needed for a skill teaching the core pattern. The messaging service methods are somewhat repetitive (each follows identify+track pattern) — showing 2 examples and noting the pattern would suffice. The 'How Campaigns Work' ASCII diagram is helpful but the explanatory sentence after it is redundant. | 2 / 3 |
Actionability | The skill provides fully executable TypeScript code with proper imports, type definitions, and real API calls. The route integration example shows practical fire-and-forget patterns with error handling. The dashboard campaign configuration gives step-by-step instructions with specific event names and Liquid template syntax. Everything is copy-paste ready. | 3 / 3 |
Workflow Clarity | The 4-step workflow is clearly sequenced: define events → build service → integrate routes → configure dashboard campaigns. The campaign configuration in Step 4 includes explicit branching logic and wait steps. The error handling table serves as a validation/troubleshooting checklist. The ASCII diagram effectively shows the data flow between app, dashboard, and user. | 3 / 3 |
Progressive Disclosure | The skill references external docs and a next-step skill file (`customerio-core-feature`), which is good. However, the content is quite long (~200 lines of code) and could benefit from splitting the full messaging service into a separate reference file, keeping SKILL.md focused on the pattern with one example method. The Liquid variables table and error handling table could also be in a reference file. | 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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Table of Contents
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