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src/__Libraries/StellaOps.Audit.ReplayToken/ReplayCliSnippetGenerator.cs

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+namespace StellaOps.Audit.ReplayToken;
+
+/// <summary>
+/// Generates CLI snippets for one-click reproduce functionality.
+/// </summary>
+public sealed class ReplayCliSnippetGenerator
+{
+    /// <summary>
+    /// Generates a CLI command to reproduce a decision.
+    /// </summary>
+    public string GenerateDecisionReplay(
+        ReplayToken token,
+        string alertId,
+        string? feedManifestUri = null,
+        string? policyVersion = null)
+    {
+        ArgumentNullException.ThrowIfNull(token);
+        ArgumentException.ThrowIfNullOrWhiteSpace(alertId);
+
+        var parts = new List<string>
+        {
+            "stellaops",
+            "replay",
+            "decision",
+            $"--token {token.Value}",
+            $"--alert-id {alertId}"
+        };
+
+        if (!string.IsNullOrWhiteSpace(feedManifestUri))
+        {
+            parts.Add($"--feed-manifest {feedManifestUri.Trim()}");
+        }
+
+        if (!string.IsNullOrWhiteSpace(policyVersion))
+        {
+            parts.Add($"--policy-version {policyVersion.Trim()}");
+        }
+
+        return string.Join(" \\\n+  ", parts);
+    }
+
+    /// <summary>
+    /// Generates a CLI command to reproduce unknowns scoring.
+    /// </summary>
+    public string GenerateScoringReplay(
+        ReplayToken token,
+        string subjectKey,
+        string? configVersion = null)
+    {
+        ArgumentNullException.ThrowIfNull(token);
+        ArgumentException.ThrowIfNullOrWhiteSpace(subjectKey);
+
+        var parts = new List<string>
+        {
+            "stellaops",
+            "replay",
+            "scoring",
+            $"--token {token.Value}",
+            $"--subject {subjectKey}"
+        };
+
+        if (!string.IsNullOrWhiteSpace(configVersion))
+        {
+            parts.Add($"--config-version {configVersion.Trim()}");
+        }
+
+        return string.Join(" \\\n+  ", parts);
+    }
+}