Content
85%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A well-engineered instruction-only skill: a gated, checkpoint-rich run workflow, concrete alert and field examples, and clean one-level-deep progressive disclosure into three real reference files. The main improvement opportunities are consolidating rules repeated across sections and making the scheduler-setup section as concrete as the rest.
Suggestions
State the 'explicitly confirmed active journey' override once (e.g. in a short 'Priority of instructions' note) and reference it from steps 2, 3 and 5 instead of restating it, and merge the three separate colleague/privacy boundary rules into the Boundaries section.
Add one concrete scheduler illustration to 'Set up and verify a recurring watch' — even a single example of a supported schedule field layout with recurrence and timezone — so setup is as actionable as the check workflow.
Add a worked leave-time example next to the 'calculate a suggested leave time' rule (verified departure minus configured access time and buffer, with the uncertainty note) to match the specificity of the alert example.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is dense rule prose with zero padding or explanation of concepts Claude already knows — e.g. "Never infer arrival by adding a departure delay to the normal journey time" and "Absence from a filtered board is not proof of cancellation" are pure non-obvious guidance. It is not a 5 because some rules are restated across sections: the "explicitly confirmed active journey" override appears in steps 2, 3 and 5, and colleague/privacy boundaries recur in three places ("Never contact a colleague", "Do not message colleagues", "Keep personal configuration... out of this public package"), which could be consolidated. | 4 / 5 |
Actionability | For an instruction-only skill the guidance is strongly concrete: a model alert with placeholders ("Your usual service is cancelled, checked at 07:30..."), an explicit field checklist ("scheduled and expected departure/arrival, cancellation, part cancellation, changed calling points, platform..."), specific check counts ("at least two preceding and two following usable direct trains"), and a concrete cadence starting point ("15 minutes is a reasonable starting point"). It stops short of the 5 anchor because the scheduler-setup section stays abstract ("Use an available supported scheduler" names no tool or command) and the leave-time calculation rule has no worked example. | 4 / 5 |
Workflow Clarity | "Run one bounded check" is a numbered 7-step sequence with explicit validation checkpoints throughout: read the calendar before fetching rail data, "Distinguish a successfully empty result from a failed or incomplete read", verify reads before scheduling ("A page that loads only a form is not a successful live-train read"), and "At the first eligible run verify data retrieval and preserve the result". Recovery paths are stated ("If the requested cadence is rejected... explain the supported alternative and ask"), and the workflow is read-only plus notifications, so the destructive-cap does not apply. This matches the 5 anchor (clear sequence, explicit validation, error-recovery handling) rather than 4, where checkpoints would be merely mostly present. | 5 / 5 |
Progressive Disclosure | The 63-line body is a well-sectioned overview that delegates three coherent topics to three real, one-level-deep files, each signaled inline at its point of use: "See [configuration.md](references/configuration.md) for fields and a shareable setup example", "retrieve fresh rail data and disruption notices using [sources.md](references/sources.md)", and "using [state-and-alerts.md](references/state-and-alerts.md)". The reference files link only to external URLs with no nested .md references, so navigation is flat and clean — the 5 anchor. | 5 / 5 |
Total | 18 / 20 Passed |