feat(roadblock): collect and strip CLAUDEDO_BLOCKED markers in StreamAnalyzer

src/ClaudeDo.Worker/Runner/StreamAnalyzer.cs

@@ -1,3 +1,4 @@
+using System.Linq;
 using System.Text.Json;
 
 namespace ClaudeDo.Worker.Runner;
@@ -11,6 +12,7 @@ public sealed class StreamResult
     public int TokensIn { get; set; }
     public int TokensOut { get; set; }
     public int ApiRetryCount { get; set; }
+    public IReadOnlyList<string> Blocks { get; set; } = Array.Empty<string>();
 }
 
 public sealed class StreamAnalyzer
@@ -22,6 +24,8 @@ public sealed class StreamAnalyzer
     private int _tokensIn;
     private int _tokensOut;
     private int _apiRetryCount;
+    private readonly List<string> _blocks = new();
+    private const string BlockedPrefix = "CLAUDEDO_BLOCKED:";
 
     public void ProcessLine(string ndjsonLine)
     {
@@ -39,7 +43,7 @@ public sealed class StreamAnalyzer
             {
                 case "result":
                     if (root.TryGetProperty("result", out var resultProp))
-                        _resultMarkdown = resultProp.GetString();
+                        _resultMarkdown = StripAndCollect(resultProp.GetString());
                     if (root.TryGetProperty("structured_output", out var structuredProp))
                         _structuredOutputJson = structuredProp.ToString();
                     if (root.TryGetProperty("session_id", out var sessionProp))
@@ -56,6 +60,7 @@ public sealed class StreamAnalyzer
 
                 case "assistant":
                     _turnCount++;
+                    CollectFromAssistant(root);
                     break;
 
                 case "system":
@@ -81,6 +86,7 @@ public sealed class StreamAnalyzer
         TokensIn = _tokensIn,
         TokensOut = _tokensOut,
         ApiRetryCount = _apiRetryCount,
+        Blocks = _blocks,
     };
 
     private string? FallbackResult()
@@ -97,6 +103,37 @@ public sealed class StreamAnalyzer
         return _structuredOutputJson;
     }
 
+    private void CollectFromAssistant(JsonElement root)
+    {
+        if (!root.TryGetProperty("message", out var msg)) return;
+        if (msg.ValueKind != JsonValueKind.Object) return;
+        if (!msg.TryGetProperty("content", out var content) || content.ValueKind != JsonValueKind.Array) return;
+        foreach (var block in content.EnumerateArray())
+            if (block.TryGetProperty("type", out var t) && t.GetString() == "text"
+                && block.TryGetProperty("text", out var txt))
+                ScanForBlocks(txt.GetString());
+    }
+
+    private void ScanForBlocks(string? text)
+    {
+        if (string.IsNullOrEmpty(text)) return;
+        foreach (var line in text.Split('\n'))
+        {
+            var trimmed = line.Trim();
+            if (trimmed.StartsWith(BlockedPrefix, StringComparison.Ordinal))
+                _blocks.Add(trimmed[BlockedPrefix.Length..].Trim());
+        }
+    }
+
+    private string? StripAndCollect(string? text)
+    {
+        if (string.IsNullOrEmpty(text)) return text;
+        ScanForBlocks(text);
+        var kept = text.Split('\n')
+            .Where(l => !l.Trim().StartsWith(BlockedPrefix, StringComparison.Ordinal));
+        return string.Join('\n', kept).Trim();
+    }
+
     private void TryAccumulateUsage(JsonElement root)
     {
         if (!root.TryGetProperty("event", out var eventProp)) return;

tests/ClaudeDo.Worker.Tests/Runner/StreamAnalyzerTests.cs

@@ -120,4 +120,36 @@ public sealed class StreamAnalyzerTests
         Assert.Contains("output", result.ResultMarkdown);
         Assert.Contains("42", result.ResultMarkdown);
     }
+
+    [Fact]
+    public void Collects_Blocked_Markers_From_Assistant_Text()
+    {
+        var analyzer = new StreamAnalyzer();
+        analyzer.ProcessLine("""{"type":"assistant","message":{"content":[{"type":"text","text":"working\nCLAUDEDO_BLOCKED: missing API key\nmoving on"}]}}""");
+        analyzer.ProcessLine("""{"type":"assistant","message":{"content":[{"type":"text","text":"CLAUDEDO_BLOCKED: cannot reach db"}]}}""");
+        analyzer.ProcessLine("""{"type":"result","result":"done","session_id":"s1"}""");
+        var result = analyzer.GetResult();
+        Assert.Equal(2, result.Blocks.Count);
+        Assert.Equal("missing API key", result.Blocks[0]);
+        Assert.Equal("cannot reach db", result.Blocks[1]);
+    }
+
+    [Fact]
+    public void Strips_Blocked_Markers_From_Result_Text()
+    {
+        var analyzer = new StreamAnalyzer();
+        analyzer.ProcessLine("""{"type":"result","result":"All set.\nCLAUDEDO_BLOCKED: no creds\nDone.","session_id":"s1"}""");
+        var result = analyzer.GetResult();
+        Assert.DoesNotContain("CLAUDEDO_BLOCKED", result.ResultMarkdown);
+        Assert.Single(result.Blocks);
+        Assert.Equal("no creds", result.Blocks[0]);
+    }
+
+    [Fact]
+    public void No_Markers_Means_Empty_Blocks()
+    {
+        var analyzer = new StreamAnalyzer();
+        analyzer.ProcessLine("""{"type":"result","result":"done","session_id":"s1"}""");
+        Assert.Empty(analyzer.GetResult().Blocks);
+    }
 }