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Replace the split executable approval and sandbox resolution workflows with schema_version 2 and a YAML-driven execution.entries model. Resolve workspace, mount, executable, runtime, network, and resource settings into one config-scoped Applied Configuration snapshot protected by a user-only DACL and written with atomic replacement.
Reduce the public CLI to implicit server startup, show, and apply. Remove serve/check, executable and sandbox subcommands, and configuration override flags including --config, --lang, --transport, --path, and --runtime-root. Add migration diagnostics for every removed schema and command surface, and keep server preflight mandatory for both stdio and HTTP.
Update effective-policy compilation to validate the applied fingerprint, resolved paths, and executable hashes before startup. Preserve fail-closed behavior while allowing execution entries and runtime roots inside a development workspace to inherit that workspace capability without creating an impossible narrower ACL boundary.
Rewrite the README around the consolidated permission matrix and document configuration, application, store location, startup, transport-specific elevation, Python 3.14, PowerShell, and cmd usage. Align specifications, design, implementation plan, traceability, audit report, localization, publish scripts, and operational verification with the breaking schema.
Verification: Release build completed with zero warnings and errors; Agent.Core.Tests 104/104 and Agent.Planner.Tests 10/10 passed; administrator Windows Security/Recovery 56/56 and README operational 19/19 passed with no skips; published HTTP MCP completed a cmd/curl/venv-Python task with network deny and zero ACL, WFP, journal, backup, or process residue.
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Rewrite the specification and design vocabulary around User Sandbox Configuration, Environment Resolution, Executable Approval, Effective Sandbox Policy, and Windows Enforcement. Move the Internal Tool catalog to the design without treating its count as a requirement, and update README, implementation planning, traceability, audit history, prompts, and the Python skill.
Introduce schema_version 1 profiles, workspaces, mounts, executable aliases, network modes, and resource presets. Add local override merging, resolution and approval stores with atomic user-only persistence, fail-closed fingerprints, localized diagnostics, and executable/sandbox management CLI commands.
Change Windows execution to LPAC entry approval with inherited descendant confinement. Separate read and execute ACLs, preserve protected OS DACLs, apply Job process/memory/timeout limits to the tree, enforce WFP network modes, prevent credential environment inheritance, disable out-of-tree MSBuild reuse, and harden transactional ACL/recovery cleanup.
Isolate planning prompts from execution instructions, reject split coding plans that cannot satisfy task-scoped evidence, preserve configured thinking, and prevent optional task_update failures from corrupting completion checks.
Add and update configuration, resolution, approval, LPAC, descendant, readonly/development, Registry/COM, WFP, recovery, .NET/Python/PowerShell process-tree, and Operational E2E coverage. Publish reproducible bundles while preserving deployment-local configuration, prompts, skills, logs, state, approvals, and resolutions.
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Replace the MCP 1.4.1 stateful HTTP design with the official C# SDK 2.0.0 stateless transport. The SDK now owns protocol negotiation, server/discover, standard MCP headers, GET and DELETE handling, error serialization, caching hints, and legacy initialize compatibility; production code no longer maintains a custom wire-protocol workaround for MCP Inspector.
Separate transport state from application conversation state. HTTP does not issue Mcp-Session-Id, while the existing session_id remains an Agent conversation identifier. Preserve agent_run and agent_status for clients without Tasks support and add the official ModelContextProtocol.Extensions.Tasks 2.0.0 path for capable clients.
Add persistent MCP Task storage with atomic JSON replacement, user-only state location, configurable TTL and poll interval, restart recovery, cancellation correlation, and public Agent-to-MCP state mapping. Keep conformance-only tools and protocol exception fixtures in a test host so they cannot enter the Release Bundle.
Run administrator, BFE, WFP transaction, and filter add/delete preflight before binding. Fail fast with exit code 2 and actionable localized diagnostics when sandbox enforcement is unavailable. Emit ready only after the listener starts and keep stdio stdout protocol-pure.
Add shared rotating application and HTTP request logs. Record real socket endpoints, connection and trace identifiers, method, path, result, timing, media metadata, User-Agent, and MCP metadata. Do not trust X-Forwarded-For and do not log authorization, cookies, query data, request or response bodies, prompts, images, or Base64 payloads.
Add typed logging and Tasks configuration, Japanese and English messages, protocol and operations documentation, design/specification deltas, traceability, and exact conformance acquisition/offline runner scripts for @modelcontextprotocol/conformance 0.2.0-alpha.11. Node remains test-only and is not a runtime dependency.
Conformance evidence: server-stateless passed 28 of 28 checks with zero unexpected failures; DNS rebinding and multiple POST stream scenarios passed. The alpha Tasks lifecycle/cancel/error/required-task checks passed, while its wire-schema validator misclassifies CreateTaskResult and its MRTR composition remains incompatible with SDK 2.0.0. The aggregate conformance Gate is therefore recorded as PARTIAL, not PASS. Test-host fixture gaps for tools-list descriptions, JSON Schema diagnostics, caching fixtures, and a header-validation/required-Task capability conflict are also recorded without expected-failure masking.
Verification: Release build passed with 0 warnings and 0 errors; Planner tests 10/10 and Core tests 47/47 passed with skip 0. The last Windows suite run passed 19/25; five WFP cases require an elevated token and one symlink case requires unavailable host privilege, so the elevated security Gate remains open. A win-x64 self-contained 1.0.0 Bundle and ZIP were regenerated under build/Release/publish; runtime check was intentionally skipped in this non-elevated session. Evidence remains under ignored artifacts/evidence/mcp-2026-07-28.
Harden release regeneration when another shell holds the previous Bundle directory as its current directory: validate the target and remove only its children instead of deleting the directory itself. build/ and artifacts/ remain excluded from Git.
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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。
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