bugfix: add stdin/stderr UTF-8 encoding to all JVM launchers and merge RunGetStatusOutput

Author: cowwoc

.claude/cat/issues/v2/v2.1/fix-utf8-encoding-all-launchers/STATE.md

@@ -1,7 +1,8 @@
 # State
 
-- **Status:** open
-- **Progress:** 0%
+- **Status:** closed
+- **Progress:** 100%
+- **Resolution:** implemented
 - **Dependencies:** []
 - **Blocks:** []
 - **Last Updated:** 2026-02-13

hooks/build-jlink.sh

@@ -46,7 +46,7 @@ readonly -a HANDLERS=(
   "get-checkpoint-box:skills.GetCheckpointOutput"
   "get-issue-complete-box:skills.GetIssueCompleteOutput"
   "get-next-task-box:skills.GetNextTaskOutput"
-  "get-status-output:skills.RunGetStatusOutput"
+  "get-status-output:skills.GetStatusOutput"
   "get-render-diff-output:skills.GetRenderDiffOutput"
 )
 
@@ -299,7 +299,9 @@ generate_launchers() {
 DIR=`dirname $0`
 exec "$DIR/java" \
   -Xms16m -Xmx96m \
+  -Dstdin.encoding=UTF-8 \
   -Dstdout.encoding=UTF-8 \
+  -Dstderr.encoding=UTF-8 \
   -XX:+UseSerialGC \
   -XX:TieredStopAtLevel=1 \
   -XX:AOTCache="$DIR/../lib/server/aot-cache.aot" \

hooks/src/main/java/io/github/cowwoc/cat/hooks/skills/GetStatusOutput.java

@@ -15,6 +15,7 @@
 import java.util.stream.Stream;
 
 import io.github.cowwoc.cat.hooks.JvmScope;
+import io.github.cowwoc.cat.hooks.MainJvmScope;
 import io.github.cowwoc.cat.hooks.util.SkillOutput;
 
 import static io.github.cowwoc.requirements13.java.DefaultJavaValidators.requireThat;
@@ -757,4 +758,24 @@ private static final class Agent
     long ageSeconds;
     String worktree = "";
   }
+
+  /**
+   * Main entry point.
+   *
+   * @param args command line arguments (unused)
+   */
+  public static void main(String[] args)
+  {
+    try (JvmScope scope = new MainJvmScope())
+    {
+      GetStatusOutput generator = new GetStatusOutput(scope);
+      String output = generator.getOutput();
+      System.out.println(output);
+    }
+    catch (IOException e)
+    {
+      System.err.println("Error generating status: " + e.getMessage());
+      System.exit(1);
+    }
+  }
 }

hooks/src/main/java/io/github/cowwoc/cat/hooks/skills/RunGetStatusOutput.java

@@ -28,7 +28,9 @@ CLAUDE_SESSION_ID="$3"
 "$CLAUDE_PLUGIN_ROOT/hooks/bin/java" \
   -Xms16m \
   -Xmx96m \
+  -Dstdin.encoding=UTF-8 \
   -Dstdout.encoding=UTF-8 \
+  -Dstderr.encoding=UTF-8 \
   -XX:+UseSerialGC \
   -XX:TieredStopAtLevel=1 \
   -m io.github.cowwoc.cat.hooks/io.github.cowwoc.cat.hooks.util.SkillLoader \