diff --git a/.doc/ops/long-term/2026-09-19-audit-remainder.md b/.doc/ops/long-term/2026-09-19-audit-remainder.md
index 9f46f1e6..e9b17ffa 100644
--- a/.doc/ops/long-term/2026-09-19-audit-remainder.md
+++ b/.doc/ops/long-term/2026-09-19-audit-remainder.md
@@ -49,7 +49,7 @@ updated: 2026-09-19
 | FE App.tsx | 部分。登录壳不再静态引用导出引擎、文件预览、管理台、块编辑器和图表。入口包 2.83 MB → 1.00 MB（br 626 KB → 235 KB）。`loginShellImports.test.ts`。工作台主体仍在 `App.tsx`，未按 hook 拆文件 |
 | H1-del | 关闭理由：`allowLegacyTestPrincipal` 仍被 `AllowInMemory && ContextDbHost==""` 的 dev/test 内存测试使用。删除会把这批测试变成未登录 401。保留告警，删除另开、先改测试夹具 |
 
-仍开放：rdev S2/S3 与 P2–P4、首次加载 U1/U4/U6/U7、dev 容器重建与治理库 PG。U3 只完成登录壳拆包（入口包 1.00 MB / br 235 KB）。U5 已复用本请求身份并合并会话/用户状态查询；未节流 `last_seen`。H2 批注/审计的项目成员检查在 Postgres 上走 `RequireProjectAccess`；内存授权器在无库时把任意正用户 id 视为成员，这是 `TestAuthorizeDocRevision_ReviewerAndNonMemberCannotWrite` 的隔离前提，不能改成默认拒绝。H2 的 HTTP 负例因此要在 `TEST_DATABASE_URL` 上补，本机未设置该变量。M7 的投影意图已随账本提交（goose `00053`）；容器 schema 仍是 52，要等占槽重建后才升到 53。
+仍开放：rdev S2 阶段步骤覆盖与 manifest aliases、S3、P2–P4、首次加载 U1/U4/U6/U7、dev 容器重建与治理库 PG。S2 已接复杂度与模型环境变量（`TestRDevRegulatoryFollowsComplexityTier`、`TestRDevModelFromEnv`）。H2 批注/审计的项目成员检查在 Postgres 上走 `RequireProjectAccess`；内存授权器在无库时把任意正用户 id 视为成员，这是 `TestAuthorizeDocRevision_ReviewerAndNonMemberCannotWrite` 的隔离前提，不能改成默认拒绝。H2 的 HTTP 负例因此要在 `TEST_DATABASE_URL` 上补，本机未设置该变量。M7 的投影意图已随账本提交（goose `00053`）；容器 schema 仍是 52，要等占槽重建后才升到 53。
 
 红线关闭（不是实现）：
 
diff --git a/.doc/status/FEATURE-MATRIX.md b/.doc/status/FEATURE-MATRIX.md
index 20ad3322..e291d912 100644
--- a/.doc/status/FEATURE-MATRIX.md
+++ b/.doc/status/FEATURE-MATRIX.md
@@ -57,7 +57,7 @@
 | 对话数据治理（D7） | 留存/删除口径、库·备份·日志控制、敏感字段加密边界 | deferred | deferred_enhancement（违规则升 blocker） | [计划](../remediation/2026-09-16-feature-matrix-production-readiness-plan.md) Scope Boundaries；[收口 §7.1](../remediation/2026-09-16-partial-deferred-completion-plan.md)；[D7 ADR 草案](../adr/2026-09-17-d7-chat-data-retention.md)；[W7 盘点](../audit/2026-09-17-d7-data-inventory.md)；[报告](../test-reports/2026-09-17-w7-d7-inventory-test-report.md) | **after W7**：只读盘点完成（sessions/messages/KB/日志/备份/event）。**未发现**已确认基线违规，未写 gap-matrix。口径仍 `pending-compliance-signoff`；禁止按 365/180/30 物理删除。本行不升 done | `chat` |
 | 智能体小队 | 角色-任务-工作区-黑板 | done | non_blocker | [agent-squad](../system-design/agent-squad/)；[test 2026-09-07](../test-reports/2026-09-07-dynamic-squad-planning-test-report.md) | 非关键步骤降级(A5/A6)属 backlog | `squad` |
 | 工作流治理 | 三正式工作流、设置页/DutyMode、动作级鉴权、真实 PI 三工作流 E2E、full/none 混合长链 | done | non_blocker | [三工作流整改](../remediation/2026-09-12-three-workflows-strict-governance-remediation.md)；[409/职责](../test-reports/2026-09-14-workflow-plan-409-frozen-and-optional-duties-test-report.md)；[鉴权](../test-reports/2026-09-14-governance-action-level-authz-test-report.md)；[PI E2E](../test-reports/2026-09-16-pi-three-workflow-e2e-test-report.md)；[Wave2 full/none](../test-reports/2026-09-16-wave2-real-pi-evidence-test-report.md) | full 跨用户审批 + none 免审批不阻塞已签。纯软件自举仍独立 planned | `workflow` |
-| 研发设计控制（rdev） | 医疗第 4 工作流：13×60 manifest/模板、`squad.rdev_doc.v1` kind 编排、main-completed 硬 precheck、StageKey 动态化；不含前端/真 PI/键名空间化 | partial | deferred_enhancement | [设计](../system-design/project-workflow/07-研发工作流rdev接入-设计与实施计划.md)；[short-term](../archive/ops/2026-09-17-rdev-workflow-integration.md)；[模板深度](../archive/ops/2026-09-17-rdev-template-depth.md)；[S0+S1 首批报告](../test-reports/2026-09-17-rdev-template-depth-test-report.md)；[S1 续批报告](../test-reports/2026-09-17-rdev-template-depth-s1-continued-test-report.md)；[写作规范](../system-design/project-workflow/08-rdev模板写作规范.md)；[backlog](../backlog/2026-09-17-rdev-phase2-backlog.md) | **P0+P1 done**。**模板深度 S0+S1 首批 + S1 续批 done**：60/60 模板已补强；真 PI 抽样 PASS（含 `rd_planning_review` + `rd_design_vv`，项目 6446）。剩余：S2/S3、P2 前端、P3 三样本 E2E、P4 键名空间化 | `workflow-def` / `rdev-templates` |
+| 研发设计控制（rdev） | 医疗第 4 工作流：13×60 manifest/模板、`squad.rdev_doc.v1` kind 编排、main-completed 硬 precheck、StageKey 动态化；不含前端/真 PI/键名空间化 | partial | deferred_enhancement | [设计](../system-design/project-workflow/07-研发工作流rdev接入-设计与实施计划.md)；[short-term](../archive/ops/2026-09-17-rdev-workflow-integration.md)；[模板深度](../archive/ops/2026-09-17-rdev-template-depth.md)；[S0+S1 首批报告](../test-reports/2026-09-17-rdev-template-depth-test-report.md)；[S1 续批报告](../test-reports/2026-09-17-rdev-template-depth-s1-continued-test-report.md)；[写作规范](../system-design/project-workflow/08-rdev模板写作规范.md)；[backlog](../backlog/2026-09-17-rdev-phase2-backlog.md) | **P0+P1 done**。**模板深度 S0+S1 首批 + S1 续批 done**：60/60 模板已补强；真 PI 抽样 PASS（含 `rd_planning_review` + `rd_design_vv`，项目 6446）。剩余：S2 已接 `complexity_tier`（未声明保持名单；medium/low 不注入法规步）与 `SQUAD_MODEL_ID`/`MINIMAX_MODEL_ID`。S2 的阶段步骤覆盖和 manifest aliases、S3、P2 前端、P3 三样本 E2E、P4 键名空间化仍未做 | `workflow-def` / `rdev-templates` |
 | 纯软件项目自举 | 软件项目创建、Bootstrap、Delivery、受控工程交接 | partial | deferred_enhancement（明确不挡首发） | [设计](../system-design/2026-09-14-software-project-bootstrap-workflow.md)；[ADR](../adr/2026-09-16-software-project-bootstrap-keys.md)；[L1 报告](../test-reports/2026-09-16-software-project-bootstrap-test-report.md)；[W5a](../test-reports/2026-09-17-w5a-software-bootstrap-ui-pi-test-report.md) | **before**：L1 + UI 仍克隆医疗模板。**after W5a**：catalog 驱动创建、软件不挂医疗 key、docs_only 真 PI 建议 delivery 且不自动激活。**SWBOOT-10 仍 stub**（W5b）；本行不升 done | `workflow-design` |
 | IAM / 鉴权 | 项目级 API 鉴权 + RBAC；会话/阶段授权 | done | 加固 | [v3 full inventory](../audit/authorization-matrix-v3-full.md)；[session 中断](../test-reports/2026-09-16-iam-route-inventory-test-report.md)；[fail-closed](../test-reports/2026-09-16-wave1-iam-fail-closed-test-report.md)；[410 策略](../audit/2026-09-16-bug11-410-retire-decision.md)；[R13](../audit/2026-09-16-r13-data-safety-checklist.md) | 全路由 inventory + session 中断负例 + 410 冻结 + R13 基线已签 | `authz` |
 | 文档治理 | 法定文档生命周期 + 租约 + 受控正文读取 | done | non_blocker | [docgov](../test-reports/2026-09-08-docgov-lifecycle-and-claiming-framework-test-report.md)；[正文 UI](../test-reports/2026-09-14-controlled-content-ui-acceptance.md)；[canonical hash](../remediation/2026-09-14-controlled-content-canonical-hash-remediation.md) | 项目 143 只读；不终止 | `docgov` |
diff --git a/internal/squad/planner.go b/internal/squad/planner.go
index 31ffd85e..5c3229a8 100644
--- a/internal/squad/planner.go
+++ b/internal/squad/planner.go
@@ -72,10 +72,19 @@ func (p *AdaptivePlanner) planFixedAdaptive(req PlannerRequest) (*PlannerResult,
 
 	steps := req.CustomSteps
 	if len(steps) == 0 {
-		steps = DefaultWorkflowSteps(req.TaskKey)
+		if strings.HasPrefix(req.TaskKey, "rd_") {
+			steps = rdevWorkflowSteps(req.TaskKey, rdevComplexityTier(req.Fields))
+		} else {
+			steps = DefaultWorkflowSteps(req.TaskKey)
+		}
 	}
 
-	agents := DefaultSquadAgents(req.TaskKey)
+	var agents []AgentSpec
+	if strings.HasPrefix(req.TaskKey, "rd_") {
+		agents = rdevSquadAgents(req.TaskKey, rdevComplexityTier(req.Fields))
+	} else {
+		agents = DefaultSquadAgents(req.TaskKey)
+	}
 
 	// 材料嗅探感知 (Material Sniffing)
 	var matBuilder strings.Builder
diff --git a/internal/squad/rdev_catalog.go b/internal/squad/rdev_catalog.go
index 410c3d77..ab37a758 100644
--- a/internal/squad/rdev_catalog.go
+++ b/internal/squad/rdev_catalog.go
@@ -1,5 +1,7 @@
 package squad
 
+import "strings"
+
 // RDevArtifactKind 研发文档产物类别（对齐参考项目 artifact_kind）。
 type RDevArtifactKind string
 
@@ -340,8 +342,18 @@ func LookupRDevTask(taskKey string) (RDevTaskMeta, bool) {
 	return t, ok
 }
 
-// RDevNeedsRegulatory 是否注入法规专员步骤。
+// RDevNeedsRegulatory 是否注入法规专员步骤。未声明复杂度时保持任务名单，避免已有运行突然少一步。
 func RDevNeedsRegulatory(taskKey string) bool {
+	return RDevNeedsRegulatoryAt(taskKey, "")
+}
+
+// RDevNeedsRegulatoryAt 在任务名单之上再看 complexity_tier。
+// high 与未声明走名单；medium 与 low 不注入。对齐参考项目 when: complexity_tier=high。
+func RDevNeedsRegulatoryAt(taskKey, tier string) bool {
+	switch strings.ToLower(strings.TrimSpace(tier)) {
+	case "medium", "low":
+		return false
+	}
 	switch taskKey {
 	case "rd_sw_plan", "rd_sw_reqs", "rd_sw_config", "rd_sw_arch", "rd_sw_ui",
 		"rd_sw_release", "rd_sw_unit_test", "rd_sw_sys_test", "rd_sw_quality",
diff --git a/internal/squad/rdev_catalog_test.go b/internal/squad/rdev_catalog_test.go
index 32745c7b..0e1218ac 100644
--- a/internal/squad/rdev_catalog_test.go
+++ b/internal/squad/rdev_catalog_test.go
@@ -51,3 +51,64 @@ func TestRDevWorkflowStepsByKind(t *testing.T) {
 		t.Fatal("leader display name missing")
 	}
 }
+
+func TestRDevRegulatoryFollowsComplexityTier(t *testing.T) {
+	if !RDevNeedsRegulatory("rd_sw_plan") {
+		t.Fatal("unset tier must keep the static regulatory list")
+	}
+	if !RDevNeedsRegulatoryAt("rd_sw_plan", "high") {
+		t.Fatal("high tier must keep regulatory for listed tasks")
+	}
+	if RDevNeedsRegulatoryAt("rd_sw_plan", "medium") || RDevNeedsRegulatoryAt("rd_sw_plan", "low") {
+		t.Fatal("medium and low must not inject regulatory")
+	}
+	if RDevNeedsRegulatoryAt("rd_proposal", "high") {
+		t.Fatal("tasks outside the list stay without regulatory even at high")
+	}
+
+	planner := NewAdaptivePlanner(nil)
+	low, err := planner.Plan(PlannerRequest{
+		TaskKey: "rd_sw_plan",
+		Fields:  map[string]string{"complexity_tier": "low"},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, step := range low.Workflow.Steps {
+		if step.Role == "regulatory" {
+			t.Fatalf("low tier plan must not include regulatory step: %+v", low.Workflow.Steps)
+		}
+	}
+	high, err := planner.Plan(PlannerRequest{
+		TaskKey: "rd_sw_plan",
+		Fields:  map[string]string{"complexity_tier": "high"},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	found := false
+	for _, step := range high.Workflow.Steps {
+		if step.Role == "regulatory" {
+			found = true
+		}
+	}
+	if !found {
+		t.Fatal("high tier plan must include regulatory step")
+	}
+}
+
+func TestRDevModelFromEnv(t *testing.T) {
+	t.Setenv("SQUAD_MODEL_ID", "")
+	t.Setenv("MINIMAX_MODEL_ID", "")
+	if got := rdevModel(); got != "MiniMax-M3" {
+		t.Fatalf("default model want MiniMax-M3 got %s", got)
+	}
+	t.Setenv("MINIMAX_MODEL_ID", "MiniMax-M2.7-highspeed")
+	if got := rdevModel(); got != "MiniMax-M2.7-highspeed" {
+		t.Fatalf("MINIMAX_MODEL_ID want highspeed got %s", got)
+	}
+	t.Setenv("SQUAD_MODEL_ID", "custom-squad")
+	if got := rdevModel(); got != "custom-squad" {
+		t.Fatalf("SQUAD_MODEL_ID must win, got %s", got)
+	}
+}
diff --git a/internal/squad/rdev_steps.go b/internal/squad/rdev_steps.go
index fdf14beb..f6062cfe 100644
--- a/internal/squad/rdev_steps.go
+++ b/internal/squad/rdev_steps.go
@@ -1,14 +1,41 @@
 package squad
 
+import (
+	"os"
+	"strings"
+)
+
 const rdevDHFAccept = "模板写满；结论先行；追溯表必填；缺项标「待确认」；不编造数据/签字/附件"
 
-func rdevSquadAgents(taskKey string) []AgentSpec {
+func rdevModel() string {
+	if v := strings.TrimSpace(os.Getenv("SQUAD_MODEL_ID")); v != "" {
+		return v
+	}
+	if v := strings.TrimSpace(os.Getenv("MINIMAX_MODEL_ID")); v != "" {
+		return v
+	}
+	return "MiniMax-M3"
+}
+
+func rdevComplexityTier(fields map[string]string) string {
+	if fields == nil {
+		return ""
+	}
+	switch strings.ToLower(strings.TrimSpace(fields["complexity_tier"])) {
+	case "high", "medium", "low":
+		return strings.ToLower(strings.TrimSpace(fields["complexity_tier"]))
+	default:
+		return ""
+	}
+}
+
+func rdevSquadAgents(taskKey, tier string) []AgentSpec {
 	meta, _ := LookupRDevTask(taskKey)
 	agents := []AgentSpec{
 		{
 			Role:             "organizer",
 			Name:             "材料整理专员",
-			Model:            "claude-3-7-sonnet",
+			Model:            rdevModel(),
 			Tools:            []string{"read", "write", "edit"},
 			BashPermission:   "deny",
 			Responsibilities: []string{"材料事实抽取", "适用性与缺口识别", "字段回填"},
@@ -21,7 +48,7 @@ func rdevSquadAgents(taskKey string) []AgentSpec {
 			AgentSpec{
 				Role:             "writer",
 				Name:             "文档撰写专员",
-				Model:            "claude-3-7-sonnet",
+				Model:            rdevModel(),
 				Tools:            []string{"read", "write", "edit"},
 				BashPermission:   "deny",
 				Responsibilities: []string{"按评审记录模板成文", "问题-决议-行动项闭环"},
@@ -33,7 +60,7 @@ func rdevSquadAgents(taskKey string) []AgentSpec {
 			AgentSpec{
 				Role:             "engineer",
 				Name:             "技术专员",
-				Model:            "claude-3-7-sonnet",
+				Model:            rdevModel(),
 				Tools:            []string{"read", "write", "edit"},
 				BashPermission:   "deny",
 				Responsibilities: []string{"附件索引完整性", "缺失影响分析"},
@@ -41,7 +68,7 @@ func rdevSquadAgents(taskKey string) []AgentSpec {
 			AgentSpec{
 				Role:             "writer",
 				Name:             "文档撰写专员",
-				Model:            "claude-3-7-sonnet",
+				Model:            rdevModel(),
 				Tools:            []string{"read", "write", "edit"},
 				BashPermission:   "deny",
 				Responsibilities: []string{"按附件清单模板成文", "标明待上传项"},
@@ -53,17 +80,17 @@ func rdevSquadAgents(taskKey string) []AgentSpec {
 			AgentSpec{
 				Role:             "engineer",
 				Name:             "技术专员",
-				Model:            "claude-3-7-sonnet",
+				Model:            rdevModel(),
 				Tools:            []string{"read", "write", "edit"},
 				BashPermission:   "deny",
 				Responsibilities: []string{"技术内容与追溯", "设计控制论证"},
 			},
 		)
-		if RDevNeedsRegulatory(taskKey) {
+		if RDevNeedsRegulatoryAt(taskKey, tier) {
 			agents = append(agents, AgentSpec{
 				Role:             "regulatory",
 				Name:             "法规专员",
-				Model:            "claude-3-7-sonnet",
+				Model:            rdevModel(),
 				Tools:            []string{"read", "write", "edit"},
 				BashPermission:   "deny",
 				Responsibilities: []string{"法规/标准适用性", "软件与风险管理合规要点"},
@@ -73,7 +100,7 @@ func rdevSquadAgents(taskKey string) []AgentSpec {
 			AgentSpec{
 				Role:             "writer",
 				Name:             "文档撰写专员",
-				Model:            "claude-3-7-sonnet",
+				Model:            rdevModel(),
 				Tools:            []string{"read", "write", "edit"},
 				BashPermission:   "deny",
 				Responsibilities: []string{"按 RD 模板成文", "结论先行与待确认清单"},
@@ -88,7 +115,7 @@ func rdevLeaderAgent() AgentSpec {
 	return AgentSpec{
 		Role:             "leader",
 		Name:             "研发设计控制负责人",
-		Model:            "claude-3-7-sonnet",
+		Model:            rdevModel(),
 		Tools:            []string{"read", "write", "edit"},
 		BashPermission:   "deny",
 		InstructionsFile: "configs/agents/rdev_leader.md",
@@ -97,7 +124,7 @@ func rdevLeaderAgent() AgentSpec {
 	}
 }
 
-func rdevWorkflowSteps(taskKey string) []StepSpec {
+func rdevWorkflowSteps(taskKey, tier string) []StepSpec {
 	meta, ok := LookupRDevTask(taskKey)
 	kind := RDevKindDocument
 	title := taskKey
@@ -154,11 +181,11 @@ func rdevWorkflowSteps(taskKey string) []StepSpec {
 			},
 		}
 	default:
-		return rdevDocumentSteps(taskKey, title)
+		return rdevDocumentSteps(taskKey, title, tier)
 	}
 }
 
-func rdevDocumentSteps(taskKey, title string) []StepSpec {
+func rdevDocumentSteps(taskKey, title, tier string) []StepSpec {
 	steps := []StepSpec{
 		{
 			ID: "step_01_organize", Role: "organizer", Title: "抽取材料事实并回填",
@@ -173,7 +200,7 @@ func rdevDocumentSteps(taskKey, title string) []StepSpec {
 		},
 	}
 	draftNeeds := "tasks/02_engineer/output.md"
-	if RDevNeedsRegulatory(taskKey) {
+	if RDevNeedsRegulatoryAt(taskKey, tier) {
 		steps = append(steps, StepSpec{
 			ID: "step_03_regulatory", Role: "regulatory", Title: "法规与风险合规要点",
 			SubWorkspace: "tasks/03_regulatory", Mode: "execute",
diff --git a/internal/squad/workspace.go b/internal/squad/workspace.go
index 37792803..e86b7711 100644
--- a/internal/squad/workspace.go
+++ b/internal/squad/workspace.go
@@ -597,7 +597,7 @@ func (e *WorkspaceEngine) buildSubWorkspaces(workDir string, wf WorkflowPlan, sq
 // DefaultSquadAgents 根据任务类型返回默认小队成员编制
 func DefaultSquadAgents(taskKey string) []AgentSpec {
 	if strings.HasPrefix(taskKey, "rd_") {
-		return rdevSquadAgents(taskKey)
+		return rdevSquadAgents(taskKey, "")
 	}
 	switch taskKey {
 	case "intake":
@@ -807,7 +807,7 @@ func DefaultSquadAgents(taskKey string) []AgentSpec {
 // DefaultWorkflowSteps 根据任务类型返回最佳实践编排步骤
 func DefaultWorkflowSteps(taskKey string) []StepSpec {
 	if strings.HasPrefix(taskKey, "rd_") {
-		return rdevWorkflowSteps(taskKey)
+		return rdevWorkflowSteps(taskKey, "")
 	}
 	switch taskKey {
 	case "intake":