iii-cron-scheduling
Registers cron triggers with 7-field expressions to run functions on recurring schedules. Use when scheduling periodic jobs, timed automation, crontab replacements, cleanup routines, report generation, health checks, batch processing, or any task that should run every N seconds, minutes, hours, or on a weekly/monthly calendar.
83
78%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/iii-cron-scheduling/SKILL.mdQuality
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 an excellent skill description that clearly communicates what the skill does (registers cron triggers with 7-field expressions), when to use it (with an explicit and comprehensive 'Use when...' clause), and includes a rich set of natural trigger terms spanning both technical and everyday language. It is concise, specific, and highly distinguishable from other skills.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists concrete actions: 'Registers cron triggers with 7-field expressions to run functions on recurring schedules.' It specifies the mechanism (cron triggers, 7-field expressions) and enumerates multiple use cases (cleanup routines, report generation, health checks, batch processing). | 3 / 3 |
Completeness | Clearly answers both 'what' (registers cron triggers with 7-field expressions to run functions on recurring schedules) and 'when' (explicit 'Use when...' clause listing scheduling periodic jobs, timed automation, crontab replacements, and several other trigger scenarios). | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural terms users would say: 'cron', 'scheduling', 'periodic jobs', 'timed automation', 'crontab', 'cleanup routines', 'report generation', 'health checks', 'batch processing', 'every N seconds/minutes/hours', 'weekly/monthly'. These are highly natural keywords spanning both technical and colloquial phrasing. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive with a clear niche around cron-based scheduling and recurring timed execution. The mention of '7-field expressions' and 'crontab' makes it very unlikely to conflict with other skills. The specific use cases further narrow the domain. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
57%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill is well-structured with good progressive disclosure, pointing to reference implementations in multiple languages and a config file. However, it lacks inline executable code examples, relying entirely on external files for actionability. The workflow could benefit from explicit step-by-step setup instructions with validation, and some sections contain boilerplate filler that could be trimmed.
Suggestions
Add a minimal inline code example (e.g., a complete 5-10 line snippet showing registerFunction + registerTrigger with a cron expression) so the skill is actionable without opening reference files.
Replace the ASCII architecture diagram and 'Common Patterns' list with a numbered step-by-step workflow for setting up a cron job, including a validation step (e.g., verifying CronModule is enabled in config before registering triggers).
Remove the generic 'When to Use' and 'Boundaries' boilerplate sections at the end — these repeat information already covered in 'Pattern Boundaries' and waste tokens.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is mostly efficient but includes some redundant sections ('When to Use' and 'Boundaries' at the end are boilerplate that add little value). The 'Key Concepts' section has some unnecessary explanation (e.g., 'Overlapping schedules are fine; each trigger fires independently'). The repeated 'Use the X below when they fit the task' phrasing is filler. | 2 / 3 |
Actionability | The skill provides API primitives and pattern names but lacks inline executable code examples. All actual code is deferred to external reference files. The 'Common Patterns' section lists function signatures but doesn't show a complete, copy-paste-ready example of registering a cron trigger. | 2 / 3 |
Workflow Clarity | The architecture diagram shows a clear sequence (timer tick → trigger match → handler → optional enqueue), and the common patterns list implies an ordering. However, there are no explicit numbered steps for setting up a cron job, no validation checkpoints, and no error handling or verification guidance. | 2 / 3 |
Progressive Disclosure | The skill provides a clear overview with well-signaled one-level-deep references to implementation files in JS, Python, and Rust, plus a config reference. Content is appropriately split between the overview and reference files, and navigation is straightforward. | 3 / 3 |
Total | 9 / 12 Passed |
Validation
100%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
- Repository
- iii-hq/iii
- Commit
8921efa
- Reviewed
Table of Contents
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