April 26, 2026

Generated lab notebook from daily_summary, plan_journal, and setpoint audit data. It is intentionally chronological and may include in-progress cycles before validation.

🌆 Evening Cycle (3:08 PM) — iris-20260426-1508

Reflection

Daily Summary So Far — this cycle will be validated at the next planning cycle.

Hypothesis

Testing: Recovery from stale planner defaults; verify conservative humid/cool posture. Expected outcome: No new VPD-low runaway; active plan present; dispatcher no longer flying stale Apr21 plan.

Setpoints

Sunday April 26

Tactical tunable changes:

Monday April 27

Tactical tunable changes:

Changed secondary parameters:

🌆 Evening Cycle (3:11 PM) — iris-20260426-1505

Reflection

Daily Summary So Far — this cycle will be validated at the next planning cycle.

Hypothesis

Setpoints

Sunday April 26

Tactical tunable changes:

🌆 Evening Cycle (3:20 PM) — iris-20260426-1513

Result: 2026-04-26 finished at planner_score 31.1 with 28.9% both-axis compliance. VPD compliance (44.6%) was the bottleneck vs temp compliance 56.9%, but the actual stress was entirely VPD-low (11.27h) with no heat, cold, or VPD-high stress in the frozen daily summary. Cost was high at USD 9.00, above the 7d avg USD 6.30, driven mostly by gas (USD 5.04 / 6.076 therms) plus elevated electric (24.78 kWh) and water 249 gal. Dew point safety degraded: dp_margin_min 3.1F and 4.5 dp-risk hours. The recovery plan restored coverage but remained too humid/cold-saturated for the actual overcast high-RH day.

Reflection

Validating previous cycle: iris-20260421-0614

Previous hypothesis: Tuesday Apr 21 is the second consecutive extreme dry-hot day in the away-plan window. Clear skies until 5 PM, outdoor 83°F peak (bias-corrected ~86°F), 7-9% RH all day. Outdoor VPD peaks 3.58 kPa at 4 PM. This is a physics-limited day — indoor will exceed 90°F regardless of control strategy (lesson #5). Strategy: maximum misting aggression from 09:30, fog escalation at 0.25 kPa during solar peak (12-3 PM), shortened sealed windows (420s at peak) per lesson #9 (thermal trap risk). Accept 5-8h heat stress as structural.

Wednesday is worse: 85°F/4% RH, 14-23 mph wind. Cloudier morning delays VPD ramp by ~1h but clearing PM with extreme dryness and wind. Wider misting gap (20s vs 15s) during morning due to wind-accelerated evaporation, tightening to 15s at PM peak. Wind improves fan cooling but reduces sealed-vent misting effectiveness.

Thursday: cold front. 68°F overcast, 10% RH. Much milder. Conservative posture with moderate misting. Cold night into Friday (39°F) — gas heater primary.

Continuing Tue vs Wed paired comparison experiment from previous plan. Key variables: cloud onset (Tue clear AM / Wed cloudy AM), wind (Tue calm / Wed 14-23 mph). Hypothesis: Wed cloudy morning delays VPD stress onset by 1-2h but PM clearing + wind makes afternoon worse than Tue.

{
  "conditions": {
    "outdoor_temp_peak_f": 83.0,
    "outdoor_rh_min_pct": 7.0,
    "solar_peak_w_m2": 851,
    "cloud_cover_avg_pct": 18,
    "notes": "Three-day sequence: Tue extreme clear/dry, Wed extreme dry/windy/partly cloudy, Thu cool front overcast. Overnight lows 48-59°F Tue-Wed, dropping to 39°F Thu night."
  },
  "stress_windows": [
    {"kind": "heat_stress", "start": "2026-04-21T11:00:00-06:00", "end": "2026-04-21T19:00:00-06:00", "severity": "high", "mitigation": "Physics-limited. Max misting + fog for evaporative assist. Accept 5-8h."},
    {"kind": "vpd_high", "start": "2026-04-21T09:30:00-06:00", "end": "2026-04-21T19:00:00-06:00", "severity": "extreme", "mitigation": "engage 1.3, gap 15s, fog_esc 0.25 at peak, sealed 420s"},
    {"kind": "heat_stress", "start": "2026-04-22T11:00:00-06:00", "end": "2026-04-22T18:00:00-06:00", "severity": "high", "mitigation": "Wind aids fan cooling slightly. Accept 4-7h."},
    {"kind": "vpd_high", "start": "2026-04-22T10:00:00-06:00", "end": "2026-04-22T18:00:00-06:00", "severity": "extreme", "mitigation": "engage 1.3, gap 20s morning (wind), 15s PM, fog_esc 0.25, sealed 420s"},
    {"kind": "cold_stress", "start": "2026-04-23T05:00:00-06:00", "end": "2026-04-23T10:00:00-06:00", "severity": "low", "mitigation": "Gas heater primary, slab retention 62-65°F"}
  ],
  "rationale": [
    {"parameter": "fog_escalation_kpa", "old_value": 0.3, "new_value": 0.25, "forecast_anchor": "Solar 851 W/m² peak, outdoor 7% RH at noon Tue", "expected_effect": "Earlier fog activation at solar peak buys 0.3-0.5 kPa VPD reduction. Reduced from previous 0.3 to 0.25 only during 12-3 PM peak, back to 0.3 pre/post peak."},
    {"parameter": "mist_max_closed_vent_s", "old_value": 480, "new_value": 420, "forecast_anchor": "Solar 792-851 W/m² during sealed periods, thermal trap risk per lesson #9", "expected_effect": "Shorter sealed window reduces peak indoor temp by 1-2°F during SEALED_MIST cycles. Trades humidity retention for thermal safety."},
    {"parameter": "mister_pulse_gap_s", "old_value": 35, "new_value": 15, "forecast_anchor": "7% outdoor RH evaporates mist in <15s at peak", "expected_effect": "Tighter pulse cycles maintain humidity during SEALED_MIST. 15s gap at peak vs 20s on Wed (wind evap). Reverts to 35-45s evening."},
    {"parameter": "bias_cool", "old_value": 4, "new_value": 0, "forecast_anchor": "Daytime solar dominates — no cooling delay needed during active solar hours", "expected_effect": "bias_cool 0 during daytime allows earlier ventilation. Rises to +4-5 for evening/overnight to prevent oscillation."},
    {"parameter": "bias_heat", "old_value": 4, "new_value": 3, "forecast_anchor": "Overnight lows 48-59°F Tue-Wed, slab retention delivers 62-65°F", "expected_effect": "Moderate pre-heat for gas efficiency without over-running heaters. Rises to +4 Wed-Thu night as outdoor drops to 39°F."}
  ]
}

Result: 2026-04-26 finished at planner_score 31.1 with 28.9% both-axis compliance. VPD compliance (44.6%) was the bottleneck vs temp compliance 56.9%, but the actual stress was entirely VPD-low (11.27h) with no heat, cold, or VPD-high stress in the frozen daily summary. Cost was high at USD 9.00, above the 7d avg USD 6.30, driven mostly by gas (USD 5.04 / 6.076 therms) plus elevated electric (24.78 kWh) and water 249 gal. Dew point safety degraded: dp_margin_min 3.1F and 4.5 dp-risk hours. The recovery plan restored coverage but remained too humid/cold-saturated for the actual overcast high-RH day. Score: 3/10

New finding: On cool, overcast, high-RH recovery days, conservative mist/fog inhibition alone is not enough: avoid holding VPD below band for hours. Use wider/no-mist thresholds, shorter sealed windows, and deliberate ventilation/dehumid posture while preserving dew point margin >5F. → Added to Lessons Learned

Hypothesis

Testing: Restore complete dispatcher waypoint coverage after OpenClaw/Iris (our OpenClaw AI agent) recovery. Expected outcome: No planner_stale critical alert; active waypoints through Monday afternoon; lower mist/fog duty during high-RH periods.

Setpoints

Sunday April 26

Tactical tunable changes:

Monday April 27

Tactical tunable changes:

Changed secondary parameters:

🌆 Evening Cycle (7:52 PM) — iris-20260426-1951

Reflection

Daily Summary So Far — this cycle will be validated at the next planning cycle.

Hypothesis

Testing: Cold-saturated overnight guard: bias_cool +4 plus conservative mist thresholds should reduce heater/vent oscillation and hold dew point margin >5°F. Expected outcome: Overnight cold_stress <1h, VPD_low stress <2h, dp_risk_hours <1.5h after 20:00, and Monday morning cost increase mainly gas rather than electric/water.

Setpoints

Sunday April 26

Primary crop-band changes:

Tactical tunable changes:

Monday April 27

Primary crop-band changes:

Tactical tunable changes:

Changed secondary parameters:

Daily Summary So Far

Climate

Stress Hours

• Heat stress (>85°F): 4.3h
• VPD stress (>2.0 kPa): 2.9h
• Cold stress (<55°F): 3.6h

Economics

Equipment Runtimes

Water

• Total: 163 gal
• Mister: 86 gal

Crop Health (Gemini Vision)

Hourly Pattern

7-Day Stress Context