HerCycle — Women's Cycle Intelligence

Built on the insight that women's biology is cyclical, not linear. Every month has four distinct hormonal seasons — each unlocking different cognitive, emotional, and physical capabilities. HerCycle reads your biometrics and tells you which season you're in, then takes action accordingly.

The Four Seasons

Season	Phase	Days	What's Amplified
🌑 Winter	Menstrual	1–5	Introspection, pattern recognition, deep insight, rest & recovery
🌱 Spring

Follicular | 6–14 | Creativity, optimism, new ideas, social energy, starting things | | ☀️ Summer | Ovulation | ~14 | Communication, charisma, negotiation, peak performance, visibility | | 🍂 Autumn | Luteal | 15–28 | Detail orientation, completion, editing, boundaries, deep focus |

Data Sources

HerCycle reads from:

• - Whoop API — HRV, recovery score, sleep quality, skin temperature (ovulation signal)
• Cycle tracking — stored in WhoopClaw DB (cycle_tracking table), or inferred from skin temp patterns
• Phase inference — if no explicit cycle log, estimate phase from skin temp trend + HRV patterns

See references/whoop-api.md for data access patterns.

Action Modules

Actions are pluggable. Each module takes the current phase + biometrics and returns a recommendation or triggers an action.

Current modules:

• - 🎵 Music — Spotify mood matching via a phase-aware playlist engine (see your WhoopClaw spotify_engine.py or bring your own)
• 💪 Training — Push hard (follicular/ovulation) vs restore (menstrual/luteal)
• 🥗 Nutrition — Iron-rich (menstrual), protein/carb cycling (luteal), light & fresh (ovulation)
• 📅 Calendar — Phase-aware scheduling nudges (big meetings → ovulation, deep work → luteal)
• 💬 Social — Energy level signal ("high charisma window" vs "protect your bandwidth")

To add a new action module: see references/action-modules.md.

Usage

Check current phase:

"What phase am I in?" / "What's my cycle season today?"

Phase-aware recommendation:

"Should I push hard at the gym today?"

"What should I eat this week?"

"Is this a good week for a big presentation?"

Trigger an action:

"Play music for my phase" / "Give me a playlist for my cycle phase"

Setup Requirements

HerCycle requires a running WhoopClaw instance — an open-source FastAPI backend that handles Whoop OAuth, cycle tracking, and biometric storage. Search GitHub for "WhoopClaw" to find an implementation, or build your own against the Whoop Developer API.

Prerequisites:

1. 1. Whoop API credentials — register at developer-dashboard.whoop.com to get your WHOOP_CLIENT_ID and INLINECODE5
2. WhoopClaw running locally — clone, configure .env, and start the server (uvicorn main:app)
3. Whoop account connected — complete the OAuth flow via WhoopClaw's /whoop/authorize endpoint

Once running, configure WHOOPLAW_BASE_URL to point to your instance (default: http://localhost:8000).

Key endpoints HerCycle uses:

• - GET /whoop/recovery — latest recovery + HRV
• INLINECODE12 — current cycle phase
• INLINECODE13 — next period prediction
• INLINECODE14 — skin temperature trend (ovulation signal)

Always pull live data before making recommendations. Do not rely on stale cached values.

Philosophy

"Every month I experience four seasons... in this season, certain sensitivity and capacity is amplified." — Chloé Zhao, Oscar-winning director (BBC 100 Women)

The goal is not to manage around the cycle. It's to move with it — scheduling, eating, training, socialising, and creating in alignment with what's naturally amplified. The cycle is the intelligence. HerCycle makes it legible.