Computes tonight's moon phase and illumination for AI DJ on-air mentions.
npx skills add https://github.com/perminder-klair/subwave --skill moon-phase
Please help me install this Agent Skill. Skill: moon-phase Source: https://github.com/perminder-klair/subwave/tree/main/docs/examples/skills/moon-phase Command: npx skills add https://github.com/perminder-klair/subwave --skill moon-phase
Radio DJs often reference the night sky to add atmosphere, but manually checking the lunar phase before every broadcast is impractical. This Skill gives the SUB/WAVE AI DJ a computed moon phase and illumination value so it can decide whether a lunar mention is worth airing.
available flag that is only true for headline phases (full moon, new moon, crescents), so unremarkable phases are skipped automatically.Ask the DJ to check tonight's moon phase and mention it on air only if it is a full moon, new moon, or sharp crescent.
High-intent search queries and answers about installing and using this skill.
Compute the days elapsed since a known new moon epoch, take the modulo of the 29.53-day synodic month, and map the result to one of eight phase names. Illumination follows a cosine curve over the cycle, requiring no network calls.
The tool returns an available flag that is true only for full moon, new moon, waxing crescent, and waning crescent phases. Unremarkable phases like gibbous return available false, telling the agent to skip the mention.
No, the calculation is fully offline. It uses a synodic-month approximation anchored to the known new moon of January 6, 2000, so no API keys, environment variables, or network requests are needed.
The approximation uses the mean synodic month of 29.530588853 days, which is accurate enough for casual on-air mentions but can drift from precise astronomical ephemeris data. It is unsuitable for scientific or navigation purposes.
The custom skill call is timeout-guarded at 8 seconds, and any thrown error degrades cleanly to a no-data result. The segment director simply treats it as nothing worth airing and the broadcast continues normally.
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