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Build Log – 2025-12-17

Build Log – 2025-12-17

📅 Daily Log — December 17, 2025

🧠 Context / Focus for Today

Stabilize the Garmin export pipeline end-to-end, confirm reliable planned workout delivery, and reduce uncertainty around Garmin sync behavior before shifting focus to AI model experimentation.


✔️ Things I Got Done Today

Garmin Export Pipeline

  • Successfully pushed a planned workout to Garmin Connect via the Training API.
  • Confirmed the workout:
    • Appears correctly in Garmin Connect
    • Syncs to the user's device as expected
  • Validated that:
    • Workout discovery logic is functioning correctly
    • Planned vs completed workout branching behaves as intended
    • Permissions and OAuth scopes are valid and sufficient
  • Reduced the remaining risk surface to edge cases rather than core delivery.

Codebase Hardening

  • Reviewed the Garmin export path to ensure it is:
    • Deterministic
    • Observable via structured logging
    • Cleanly separated from UI concerns
  • Identified specific follow-ups where additional validation or error messaging will improve debuggability.

Execution Discipline

  • Kept scope tightly focused on Garmin reliability, explicitly deferring non-essential features.
  • Re-affirmed sequencing:
    • Garmin push reliability first
    • AI model testing and plan generation second
  • Avoided introducing new systems during a critical stabilization phase.

🚧 In Progress

  • Hardening export error handling for edge cases.
  • Validating planned workout pushes across multiple workout types.
  • Final cleanup and confidence checks before declaring Garmin push "stable."

🎯 Targets for Tomorrow

  1. Validate Garmin planned workout pushes across additional scenarios.
  2. Add final guardrails and logging to lock in reliability.
  3. Decide whether the Garmin push pipeline is stable enough to shift focus to AI model testing.
  4. Keep all work execution-focused; no roadmap expansion.

🤔 Notes / Observations

  • Achieving a successful planned workout push is a major milestone.
  • Remaining work is now about confidence and coverage, not core feasibility.
  • Garmin reliability progress feels real and cumulative.

📈 Momentum Score: 8.8 / 10

Breakthrough day. Core Garmin push workflow is now proven end-to-end.