feat: AI Agent Sandbox MCP Server v1を実装

Specifications、Design、ImplementationPlanの優先順位を整理し、単一Task実行モデル、typed option優先、設定可能なresource上限、local Ollamaを必須とするRelease Gateを文書化。

.NET 10/C# 14の5 production project、3 test project、E2E Clientを構築。typed YAML、en/ja locale、fixed/user prompt、stdioおよびloopback限定Streamable HTTP、agent_run/agent_status、Session、Ollama text/tool/Vision、TaskGraphとtoken accountingを実装。

Windows sandboxとしてfixed AppContainer、canonical/reparse検査、能力別ACL、path+SHA-256 executable approval、child-process restriction、Job Object、task journal、atomic file transaction、crash recoveryを実装。WFPのIPv4/IPv6 default denyとexact allow、dynamic session、temporary loopback exemption、管理者/BFE診断を追加。

Security/Recovery test、MCP/Ollama integration test、stdio/HTTP Operational E2E、Release Bundle生成・checksum・manifest・fresh extraction検査を追加。Requirement TraceabilityとPhase 0〜11の進捗、初回セットアップ可能なREADMEを整備。

Debug/Release/publish/objをrepository rootのbuild/へ集約し、旧project-local bin/objへの依存を除去。artifacts/とbuild/をGit管理外に設定し、clean checkoutでもsolution buildからE2E Clientまで生成可能にした。

1 files changed, 29 insertions, 0 deletions

diff --git a/src/Agent.Windows/Security/SecurityAudit.cs b/src/Agent.Windows/Security/SecurityAudit.cs
new file mode 100644
index 0000000..8858c2b
--- /dev/null
+++ b/src/Agent.Windows/Security/SecurityAudit.cs
@@ -0,0 +1,29 @@
+using System.Text.Json;
+
+namespace Agent.Windows.Security;
+
+public sealed record SecurityAuditEvent(DateTimeOffset Timestamp, Guid TaskId, string Event, string Outcome, IReadOnlyDictionary<string, string> Data);
+
+public interface ISecurityAuditSink
+{
+    void Write(SecurityAuditEvent auditEvent);
+}
+
+public sealed class JsonLinesSecurityAuditSink(string path) : ISecurityAuditSink
+{
+    private readonly object _sync = new();
+    public void Write(SecurityAuditEvent auditEvent)
+    {
+        string? directory = Path.GetDirectoryName(Path.GetFullPath(path));
+        if (directory is not null) Directory.CreateDirectory(directory);
+        string line = JsonSerializer.Serialize(auditEvent);
+        lock (_sync) File.AppendAllText(path, line + Environment.NewLine);
+    }
+}
+
+public sealed class MemorySecurityAuditSink : ISecurityAuditSink
+{
+    private readonly List<SecurityAuditEvent> _events = [];
+    public IReadOnlyList<SecurityAuditEvent> Events => _events;
+    public void Write(SecurityAuditEvent auditEvent) => _events.Add(auditEvent);
+}