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2718lab DevKit — Codex + MCP v1.2.1

2718lab DevKitはCodex初のエンジニアリングツールキットであり、ローカルでstdio専用のMCPです 有界プロジェクトインデックス作成、アトラスエビデンス、リレーライフサイクル用ランタイム 調整と決定論的ファストレーン計画、さらにコンパクトなスキルバンドル 参考マニュアルの一覧です。このリポジトリにはバージョン対応済みv1.2.1パッケージが搭載されています。 チェックインされたマニフェストと許可リストは実行可能なランタイム表面を定義します。 以下のマニュアルマップ、設置、構築、検証の各セクションは サポートされたワークフロー。

公開のPythonコンパイラとCLIは意図的にfail-closureされたままにします team-efficiency/fast-lane-plan-v1 プレビュー。新作の準備をしてください [fast-lane-request-v2とprepare_model_neutral_fast_lane_request;MCP fastlane_compile はその後、ワークスペース/スナップショットセレクタを ローカルRuntimeRootを返し、検証済みのteam-efficiency/fast-lane-plan-v3を返します。 その割り当ては要件を記述し、モデルの選択は 現在のコデックスツールのメタデータを使ったコーディネーター。すべてのディスクリプタは残ります plan_only:発送、リース請求、ワークツリーの作成、または 実行を承認します。Request-v1/plan-v2は正確なレガシーリプレイのために引き続き利用可能です。

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2718lab DevKit — Codex + MCP v1.2.1

2718lab DevKit is a Codex-first engineering toolkit: a local, stdio-only MCP runtime for bounded project indexing, Atlas evidence, Relay lifecycle coordination, and deterministic Fast Lane planning, plus a compact Skill bundle of reference manuals. This repository carries the versioned v1.2.1 package. The checked-in manifest and allowlist define the executable runtime surface; the manual map, install, build, and verification sections below describe the supported workflow.

The public Python compiler and CLI retain the deliberately fail-closed team-efficiency/fast-lane-plan-v1 preview. For new work, prepare fast-lane-request-v2 with prepare_model_neutral_fast_lane_request; MCP fastlane_compile then resolves the workspace/snapshot selectors through its local RuntimeRoot and returns a verified team-efficiency/fast-lane-plan-v3. Its assignments describe requirements and leave model selection to the coordinator using current Codex tool metadata. Every descriptor remains plan_only: it never dispatches, claims a lease, creates a worktree, or authorizes execution. Request-v1/plan-v2 stays available for exact legacy replay.

The prior v1.1.3 storage-governance integration references compatible Host source only on Ayleovelle’s user-fork codex/host-1.1.3-storage-governance-upstream branch, pinned to immutable commit c3dde23bec21c45d10740f2eec09d9a1b87cd329. That fork is buildable Host source, not an OpenAI upstream merge or a component shipped by this package. Stock Codex Hosts have no attested protected broker and continue to fail closed.

[!IMPORTANT] Workflow reminder: route from bounded evidence. Parallel A1/A2/A3 work is allowed only with disjoint, exclusively owned write scopes and independent G: task roots. Claim and bind before execution; prewarm is read-only and action="retain" is not a new spawn. The coordinator integrates only after PR-style independent review, then accepts before archiving. Fast Lane does not use an account-usage coordinator or account-usage inputs. Do not commit runtime state or credentials.

Scheduler topology V1: 2718lab-devkit/scheduler-topology-v1 binds the plan, lease, and G-drive worktree as auditable opaque identities. A/B/C means main-conversation review/integration, scheduler, and writer; each scheduler has at most a 1:3 writer relationship. Design/prewarm are read-only and stay subject to actual host slots, host capability, and safety gates. Cross-scope work requires a declared-child split that strictly reduces conflict, or is UNSPLITTABLE.

1.2.1 hotfix