Planning system
How does 140.6 build a triathlon training plan?
140.6 uses a three-stage planning flow: it may propose bounded strategy from the permitted training context, deterministic rules validate the proposal and expand it into a concrete session, and the athlete reviews the exact changes before confirming them. AI can assist with strategy or wording, but it does not own safety, calculations, or plan application.
How do the planning steps work?
- Propose: a planning route receives minimized, structured context and returns a constrained proposal, not an unrestricted workout.
- Validate: versioned deterministic rules check constraints, protect existing commitments, and expand an eligible proposal into a concrete session. If an AI route is unavailable, local rules can provide a fallback.
- Review: the athlete sees the proposed changes and confirms them before they alter the plan. The app does not silently rewrite prescribed work.
Standard mode tries supported Apple Intelligence first, then a configured plan service if needed, then deterministic local rules. On-device-only mode avoids the plan server and uses supported Apple Intelligence followed by deterministic local rules.
Common mistakes when interpreting a plan
- Confusing a proposed session with an accepted plan change.
- Assuming a plan can replace judgment about pain, illness, or concerning symptoms.
- Reading deterministic validation as a guarantee that a training outcome is safe or successful.
- Ignoring missing or stale evidence because a plan looks precise.
Every plan remains one input to an athlete's decision. Training carries risk, and the product's safety notice and privacy policy describe important boundaries.
Why do people struggle to adapt training?
Adaptation is difficult when a plan, completed work, recovery signals, and available time are stored in different places. It is also easy to over-trust a clean recommendation when the underlying evidence is partial. 140.6 keeps those distinctions visible so that a proposal can be reviewed against the context that produced it.
See the product overview at What is 140.6? or open the iPhone download page. The app is publicly available on Apple’s App Store.