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, 59 insertions, 0 deletions

diff --git a/config/agent.yaml b/config/agent.yaml
new file mode 100644
index 0000000..05a5237
--- /dev/null
+++ b/config/agent.yaml
@@ -0,0 +1,59 @@
+schema_version: 1
+application:
+  language: en
+mcp:
+  transport: stdio
+  http:
+    host: 127.0.0.1
+    port: 8080
+  images:
+    max_count: 4
+    max_bytes_each: 10485760
+    max_total_bytes: 20971520
+agent:
+  user_system_prompt: prompts/user-system.md
+  max_iterations: 128
+  same_failure_limit: 5
+ollama:
+  endpoint: http://127.0.0.1:11434
+  model: hf.co/unsloth/gemma-4-E2B-it-qat-GGUF:UD-Q4_K_XL
+  think: true
+  keep_alive: 5m
+  options:
+    num_ctx: 32768
+    temperature: 0.4
+  extra_options: {}
+planner:
+  max_tasks: 32
+sandbox:
+  filesystem:
+    read: []
+    write: []
+    execute: []
+    delete: []
+  process:
+    allow_shell: true
+    approvals: []
+    max_processes: 16
+  network:
+    mode: deny
+    allow: []
+  resources:
+    memory_mb: 4096
+    process_timeout_seconds: 1800
+file_edit:
+  memory_backup_limit_mb: 16
+limits:
+  whole_read_bytes: 1048576
+  search_max_results: 1000
+  tail_max_lines: 10000
+  context_summary_ratio: 0.8
+localization:
+  directory: config/locales
+  fallback: en
+skills:
+  directory: skills
+logging:
+  directory: logs
+  max_file_bytes: 10485760
+  retained_files: 5