1 files changed, 21 insertions, 0 deletions
diff --git a/src/Godosa.Core/Runs/Scripts/RunOutput.cs b/src/Godosa.Core/Runs/Scripts/RunOutput.cs
new file mode 100644
index 0000000..4c75a6a
--- /dev/null
+++ b/src/Godosa.Core/Runs/Scripts/RunOutput.cs
@@ -0,0 +1,21 @@
+// Provenance: own design — shared run scripts (spec §7.1)
+namespace Godosa.Core.Runs.Scripts;
+
+/// <summary>Auto-output filter: a line of <c>level</c> prints when <c>level ≤ max(current, floor)</c>; <see cref="Always"/>
+/// = log lines and failures.</summary>
+public sealed class RunOutput(Action<string> write, OutputLevel floor)
+{
+    public void Emit(OutputLevel level, OutputLevel current, string line)
+    {
+        if (level <= (current > floor ? current : floor))
+            write(line);
+    }
+
+    public void Always(string line) => write(line);
+
+    public static OutputLevel Parse(string name) => name switch
+    {
+        "quiet" => OutputLevel.Quiet, "checkpoints" => OutputLevel.Checkpoints, "labels" => OutputLevel.Labels,
+        "steps" => OutputLevel.Steps, "trace" => OutputLevel.Trace, _ => throw new ScriptFault($"bad output level '{name}'"),
+    };
+}