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Default the Claude Code injection check to Claude Haiku 5.5 #2175

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Merged
zentron merged 3 commits into from
Oct 13, 2026
Merged

Default the Claude Code injection check to Claude Haiku 5.5 #2175

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9f982d1
Default the Claude Code injection check to Claude Haiku 5.5
zentron Oct 11, 2026
4a7e7bd
Log the prompt-injection check's token usage
zentron Oct 11, 2026
017a65d
Log the injection check's token usage at verbose level
zentron Oct 11, 2026
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3 changes: 3 additions & 0 deletions source/Calamari/AiAgent/ClaudeCodeBehaviour/InjectionCheck/AnthropicInjectionCheckClient.cs
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Expand Up @@ -63,6 +63,9 @@ public async Task<InjectionCheckResult> AnalyzeAsync(string systemPrompt, string
if (string.Equals(message.StopReason, "refusal", StringComparison.OrdinalIgnoreCase))
throw new InjectionCheckException("The injection-check model refused the request.");

if (string.Equals(message.StopReason, "max_tokens", StringComparison.OrdinalIgnoreCase))
throw new InjectionCheckException($"The injection-check model ran out of output tokens after {message.Usage?.OutputTokens?.ToString() ?? "unknown"} tokens (max tokens is {options.MaxTokens}).");

var verdictJson = message.Content?.FirstOrDefault(b => b.Type == "text")?.Text;
if (string.IsNullOrWhiteSpace(verdictJson))
throw new InjectionCheckException("The injection-check model returned no verdict content.");
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4 changes: 2 additions & 2 deletions source/Calamari/AiAgent/ClaudeCodeBehaviour/InjectionCheck/InjectionCheckOptions.cs
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Expand Up @@ -8,8 +8,8 @@ namespace Calamari.AiAgent.ClaudeCodeBehaviour.InjectionCheck;
// promoted to step configuration later by setting the matching Octopus.Action.Claude.* variable.
public class InjectionCheckOptions
{
const string DefaultModel = "claude-haiku-4-5";
const int DefaultMaxTokens = 1024;
const string DefaultModel = "claude-haiku-5-5";
const int DefaultMaxTokens = 2048;
const int DefaultMaxInputCharacters = 200_000;

public bool Enabled { get; init; }
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1 change: 1 addition & 0 deletions source/Calamari/AiAgent/ClaudeCodeBehaviour/InjectionCheck/PromptInjectionGuard.cs
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Expand Up @@ -74,6 +74,7 @@ public async Task CheckAsync(string workingDir, string prompt, string apiToken,

void ReportUsage(InjectionCheckResult result)
{
log.Verbose($"Prompt-injection check used {result.InputTokens?.ToString() ?? "unknown"} input tokens and {result.OutputTokens?.ToString() ?? "unknown"} output tokens (model '{result.Model}').");
usageReporter.AddModelUsage(new[]
{
new ClaudeCodeModelUsage
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