Done — stopping here as instructed. Summary of how each step was performed:

## Steps taken

1. **Introduce lambda (manual edit, the allowed exception):** Moved the scorer-dependent code (`scorer.updateSelection()` / `scorer.lookupWeather(...)`) into a `LongFunction<Boolean> dayOffsetToWeather` lambda defined at the top of the method; the loop now calls `dayOffsetToWeather.apply(daysForward)` at the original invocation point. ✅ compiles, same 2 pre-existing test failures.

2. **Extract method (via `java-refactor extract`):** Selected the `interestingDates`/`expectedWeather` declarations + loop; produced exactly `private List<Boolean> collectExpectedWeather(LongFunction<Boolean> dayOffsetToWeather)`. ✅ same test result.

3. **Signature change (manual fallback):** No `java-refactor` subcommand could do it — I verified with dry-runs:
   - `decompose-conditional` generated broken code (out-of-scope `quarter`)
   - `remove-param` refuses: parameter still referenced
   - `introduce-param` refuses: "Selection is already a simple name"
   - `extract` generated invalid `var` parameter types; `change-method-signature` can't add/remove parameters
   
   So per AGENTS.md I made a minimal manual edit: signature → `longRangeForecast(LongFunction<Boolean> dayOffsetToWeather)`, added public no-arg overload wrapping the `scorer` field in a lambda, dropped the `String quarter` parameter (and the dead `if` block that used it — its writes were unconditionally overwritten by the next loop anyway), and updated the test's call site to the no-arg overload (forced by the signature change). ✅ compiles; only the 2 baseline failures remain.

## Final diff

```diff
--- a/src/main/java/codingdojo/LongRangeForecasts.java
+++ b/src/main/java/codingdojo/LongRangeForecasts.java
 import java.time.Instant;
 import java.time.temporal.ChronoUnit;
 import java.util.*;
+import java.util.function.LongFunction;
 
     private final Scorer scorer = new Scorer();
 
-    public Map<IceCream, Integer> longRangeForecast(String quarter) {
+    public Map<IceCream, Integer> longRangeForecast() {
+        return longRangeForecast(daysForward -> {
+            scorer.updateSelection();
+            return scorer.lookupWeather(daysForward);
+        });
+    }
+
+    public Map<IceCream, Integer> longRangeForecast(LongFunction<Boolean> dayOffsetToWeather) {
         var result = new HashMap<IceCream, Integer>();
-        if (Objects.equals(quarter, "Q1") || Objects.equals(quarter, "Q4")) {
-            for (IceCream flavour : IceCream.values()) {
-                result.put(flavour, 5);
-            }
-        }
         for (IceCream flavour : IceCream.values()) {
             result.put(flavour, 0);
         }
-        List<Instant> interestingDates = List.of(
-                Instant.parse("2023-05-01T14:00:00.000-07:00"),
-                Instant.parse("2023-05-18T14:00:00.000-07:00"),
-                Instant.parse("2023-06-05T14:00:00.000-07:00"),
-                Instant.parse("2023-06-23T14:00:00.000-07:00")
-        );
-        List<Boolean> expectedWeather = new ArrayList<>();
-        for (Instant interestingDate : interestingDates) {
-            scorer.updateSelection();
-            var forecastDate = Instant.parse("2023-04-26T14:00:00.000-07:00");
-            long daysForward = ChronoUnit.DAYS.between(forecastDate, interestingDate);
-            Boolean lookupWeather = scorer.lookupWeather(daysForward);
-            expectedWeather.add(lookupWeather);
-        }
+        List<Boolean> expectedWeather = collectExpectedWeather(dayOffsetToWeather);
 
         for (IceCream flavour : result.keySet()) {
             ...
         }
         return result;
     }
+
+    private List<Boolean> collectExpectedWeather(LongFunction<Boolean> dayOffsetToWeather) {
+        List<Instant> interestingDates = List.of(
+                Instant.parse("2023-05-01T14:00:00.000-07:00"),
+                Instant.parse("2023-05-18T14:00:00.000-07:00"),
+                Instant.parse("2023-06-05T14:00:00.000-07:00"),
+                Instant.parse("2023-06-23T14:00:00.000-07:00")
+        );
+        List<Boolean> expectedWeather = new ArrayList<>();
+        for (Instant interestingDate : interestingDates) {
+            var forecastDate = Instant.parse("2023-04-26T14:00:00.000-07:00");
+            long daysForward = ChronoUnit.DAYS.between(forecastDate, interestingDate);
+            Boolean lookupWeather = dayOffsetToWeather.apply(daysForward);
+            expectedWeather.add(lookupWeather);
+        }
+        return expectedWeather;
+    }

--- a/src/test/java/codingdojo/LongRangeForecastsTest.java   (forced call-site update)
-        var actual = new LongRangeForecasts().longRangeForecast(quarter);
+        var actual = new LongRangeForecasts().longRangeForecast();
```

The scorer dependency is now injectable: `longRangeForecast()` delegates with a lambda wrapping the `scorer` field, and tests can pass a stub `LongFunction<Boolean>` instead.