# plan-generator > Generates 14–21 day running plans tailored to onboarding data and recent performance. - Author: nadavyigal - Repository: nadavyigal/Running-coach- - Version: 20260122150617 - Stars: 0 - Forks: 0 - Last Updated: 2026-02-06 - Source: https://github.com/nadavyigal/Running-coach- - Web: https://mule.run/skillshub/@@nadavyigal/Running-coach-~plan-generator:20260122150617 --- --- name: plan-generator description: Generates 14–21 day running plans tailored to onboarding data and recent performance. metadata: short-description: Drafts personalized training blocks with safe load progression and rationale. --- ## When Codex should use it - After onboarding completion or goal updates. - When the user requests a new plan or calendar export. ## Invocation guidance 1. Load shared contracts from `_index/references/contracts.md`. 2. Inputs must include `UserProfile`, `TrainingHistory`, and optional `RecentRunTelemetry[]`. 3. Enforce rest distribution and load caps from deterministic rules (`v0/lib/plan-complexity-engine.ts`, `v0/lib/periodization.ts`). 4. Return JSON matching `Plan` + `rationale`. ## Input schema (JSON) ```ts { "profile": UserProfile, "trainingHistory": TrainingHistory, "startDate": "2025-01-01", "preferences": { "indoorOk": true, "rookieChallenge": true } } ``` ## Output schema (JSON) ```ts Plan & { rationale: string; safetyFlags?: SafetyFlag[] } ``` ## Integration points - API: `v0/app/api/generate-plan/route.ts` - Logic: `v0/lib/planGenerator.ts`, `v0/lib/plan-templates.ts` - UI: Today and Plan screens (Dexie data via `v0/lib/db.ts`) ## Safety & guardrails - No medical diagnosis; if pain/dizziness flags are present, reduce load and advise consulting a professional. - Hard-cap weekly volume deltas via `plan-complexity-engine.ts`. - Emit `SafetyFlag` for load spikes or missing critical data. ## Telemetry - Emit `ai_skill_invoked` and `ai_plan_generated` with `plan_version`, `fallback_used`, `safety_flags`.