diff --git a/.blueprint/manifest.yaml b/.blueprint/manifest.yaml
index af54473..c052959 100644
--- a/.blueprint/manifest.yaml
+++ b/.blueprint/manifest.yaml
@@ -502,9 +502,9 @@ modules:
     name: 项目开发变量补给
     area: infra
     status: in_progress
-    progress: 91
-    updated: 2026-09-28
-    note: "V1–V6、V8–V11 合成验收通过；V7 真实 Codex 工具调用仍被客户端 approval policy=never 拒绝。真实桌面 UI 和跨会话便利性待终验；仅非生产开发用途，运行时 env 注入后置。"
+    progress: 100
+    updated: 2026-09-30
+    note: "V1–V11 agent_verify 全部通过；V7 于 2026-09-30 以真实 Codex CLI 三会话完成登记→填写→跨会话读取→撤销后读取失败（单次 --approve-for-me，仅登记写调用）。待人终验真实桌面 UI 与日常便利；仅非生产开发用途。运行时落地增量见 docs/tasks/2026-09-30-dev-variables-materialize.md。"
     position: [3250, 950]
 
 edges:
diff --git a/.blueprint/modules/project-dev-variables.md b/.blueprint/modules/project-dev-variables.md
index 75b3370..2faddbc 100644
--- a/.blueprint/modules/project-dev-variables.md
+++ b/.blueprint/modules/project-dev-variables.md
@@ -102,14 +102,16 @@ progress: 91
 - acceptance: "[真实 scoped MCP] p1 Agent 登记 E2E_PASSWORD → UI 待填写；人保存合成值后已认证 Agent 单项读取成功；未认证、p2 和全局路由拒绝；tools/list 无批量导出或任意代理。"
 - evidence: `scoped_dev_variable_http_pilot_denies_missing_wrong_cross_and_global_auth` 真实本机 HTTP 测试通过；撤销后读取失败，工具清单无批量出口。
 
-### 🔴 V7 — 契约、合成试点与改动边界验收
-- status: blocked
+### ✅ V7 — 契约、合成试点与改动边界验收
+- status: done
 - complexity: M
-- files: docs/ai-context/project-context.yaml, docs/ai-context/agent-button-system.md, .blueprint/modules/project-dev-variables.md
+- files: docs/ai-context/project-context.yaml, docs/ai-context/agent-button-system.md, .blueprint/modules/project-dev-variables.md, src-tauri/src/mcp_server.rs
 - depends: V6
 - acceptance: "agent_verify: [真实 Codex CLI + 合成数据] 跨会话登记→填写→读取→撤销后再读失败，项目目录无新 .env 或 token；[CLI] cargo test、pnpm typecheck、git diff --check 均 exit 0。human_verify: 不使用真实生产账号、不触发真实 PR/部署/数据库写入，确认日常开发摩擦是否下降。"
-- blocked_reason: 真实 Codex CLI 三次隔离合成试点均在调用 `register_project_dev_variable` 时被客户端审批策略拒绝（`MCP tool call requires approval, but approval policy is never`），服务端未收到登记请求；未尝试绕过审批。需用户决定是否允许一次受控、可审批的真实客户端试点。
-- pending: 真实 Codex CLI 调新工具完成整条业务链、正式打包版、桌面 UI 人眼便利性终验；V1 的真实 Codex 认证初始化与 V6 的真实 scoped HTTP 业务链已分别验证，不把组合证据冒充本卡端到端完成。
+- resolved_blocker: 原阻碍为非交互 `exec` 默认 approval=never 拒绝写工具。2026-09-30 用户授权单次 `--approve-for-me`（仅会话 A 登记这一写调用），沿用 R11 先例；未放宽全局策略，读工具无需审批。
+- verification: "2026-09-30：新增 ignored 宿主 `mcp_server::tests::isolated_dev_variables_client_pilot`（内存 DB、随机合成账户、临时 scoped MCP，认证走真实 `dev-manager-tauri.exe --lianjing-mcp-header` helper 取 Windows 凭据中的项目 bearer）。自检：helper exit 0；无认证 read_project_test_account → HTTP 403。真实 Codex CLI 0.155.0-alpha.9.2（gpt-5.6-terra）三个独立会话：A 登记 PILOT_LOGIN（environment=local）→ 宿主代人填写；B 新会话 list → configured=true、read → username=pilot-user-12abb974，与宿主生成值一致；宿主代人撤销后 C 新会话 read → 失败「开发变量尚未由用户填写」。finish 后宿主断言：状态全部未配置、目录无 `.env*`、任何文件不含 MCP token 与测试密码、MCP 认证材料已删除、临时目录已清理，test ok。回归：cargo test --locked 227 passed / 5 ignored，pnpm typecheck exit 0，git diff --check 通过。"
+- human_verify: pending（真实桌面 UI 填写/撤销与日常开发摩擦是否下降，需人终验）
+- unverified: "正式打包版 helper 路径；Claude/DeepSeek 等非 Codex 客户端的 bearer helper 取值；B 会话中模型把 list/read 各重复调用 3 次（结果一致，属模型行为，未影响断言）；宿主强制终止时 Drop 不保证执行，可能残留合成 Windows 凭据。"
 
 ## 设计决策：测试账户一次填写与跨会话复用（2026-09-28）
 
diff --git a/src-tauri/src/mcp_server.rs b/src-tauri/src/mcp_server.rs
index 61f885c..52b80aa 100644
--- a/src-tauri/src/mcp_server.rs
+++ b/src-tauri/src/mcp_server.rs
@@ -1224,6 +1224,219 @@ mod tests {
         assert!(!project_dir.exists());
     }
 
+    /// V7 隔离真实客户端试点：仅内存数据库、随机合成凭证与临时 scoped MCP，认证走真实 helper。
+    /// 阶段靠临时项目 `.pilot/` 标记推进：客户端登记后宿主代人填写合成账户（写 filled）；
+    /// 见 `revoke` 标记后代人撤销（写 revoked）；见 `finish` 标记后检查改动边界并清理。
+    #[cfg(windows)]
+    #[tokio::test(flavor = "multi_thread")]
+    #[ignore = "V7: connect disposable Codex sessions to the printed scoped MCP URL"]
+    async fn isolated_dev_variables_client_pilot() {
+        use crate::credential_store::WindowsCredentialStore;
+        use std::io::Write;
+        use std::time::{Duration, Instant};
+
+        struct PilotGuard {
+            project_id: String,
+            project_dir: std::path::PathBuf,
+        }
+        impl Drop for PilotGuard {
+            fn drop(&mut self) {
+                if let Ok(conn) = db::pool().get() {
+                    let _ = crate::commands::dev_variables::purge_project(
+                        &conn,
+                        &WindowsCredentialStore,
+                        &self.project_id,
+                    );
+                }
+                let _ = crate::credential_store::delete_mcp_auth_token_for_project(
+                    &WindowsCredentialStore,
+                    &self.project_id,
+                );
+                let _ = std::fs::remove_dir_all(&self.project_dir);
+            }
+        }
+
+        async fn wait_until<T>(
+            what: &str,
+            limit: Duration,
+            mut probe: impl FnMut() -> Option<T>,
+        ) -> T {
+            let deadline = Instant::now() + limit;
+            loop {
+                if let Some(value) = probe() {
+                    return value;
+                }
+                assert!(Instant::now() < deadline, "等待超时：{what}");
+                tokio::time::sleep(Duration::from_millis(500)).await;
+            }
+        }
+
+        db::init_test_pool();
+        let project_id = format!("synthetic-dev-variables-pilot-{}", uuid::Uuid::new_v4());
+        let profile_id = format!("{project_id}-profile");
+        let project_dir =
+            std::env::temp_dir().join(format!("lianjing-v7-{}", uuid::Uuid::new_v4()));
+        let pilot_dir = project_dir.join(".pilot");
+        let guard = PilotGuard {
+            project_id: project_id.clone(),
+            project_dir: project_dir.clone(),
+        };
+        {
+            let conn = db::pool().get().unwrap();
+            conn.execute(
+                "INSERT INTO project_profiles (id, name) VALUES (?1, 'Synthetic Dev Variables Pilot')",
+                [&profile_id],
+            )
+            .unwrap();
+            conn.execute(
+                "INSERT INTO project_workspaces (id, profile_id) VALUES (?1, ?2)",
+                rusqlite::params![project_id, profile_id],
+            )
+            .unwrap();
+        }
+
+        let token = crate::credential_store::get_or_create_mcp_auth_token(
+            &WindowsCredentialStore,
+            &project_id,
+        )
+        .unwrap();
+        let digest = crate::credential_store::mcp_auth_digest(&project_id).unwrap();
+        // 测试二进制位于 target/debug/deps/，helper 即同目录上一级的应用 debug 构建。
+        let helper_exe = std::env::current_exe()
+            .unwrap()
+            .parent()
+            .and_then(std::path::Path::parent)
+            .unwrap()
+            .join("dev-manager-tauri.exe");
+        assert!(
+            helper_exe.is_file(),
+            "先 cargo build 生成 helper：{}",
+            helper_exe.display()
+        );
+        let helper = format!(
+            "\"{}\" --lianjing-mcp-header {digest}",
+            helper_exe.display()
+        );
+
+        let listener = tokio::net::TcpListener::bind(mcp_bind_addr(0))
+            .await
+            .unwrap();
+        let port = listener.local_addr().unwrap().port();
+        let sessions: Sessions = Arc::new(Mutex::new(HashMap::new()));
+        let server = tokio::spawn(async move {
+            axum::serve(listener, mcp_router(sessions)).await.unwrap();
+        });
+        let url = scoped_mcp_url(port, &project_id);
+        std::fs::create_dir_all(project_dir.join(".lian-jing")).unwrap();
+        std::fs::create_dir_all(project_dir.join(".codex")).unwrap();
+        std::fs::create_dir_all(&pilot_dir).unwrap();
+        std::fs::write(
+            project_dir.join(".lian-jing/context.json"),
+            serde_json::to_vec_pretty(&json!({"project_id": project_id, "schema_version": 1}))
+                .unwrap(),
+        )
+        .unwrap();
+        std::fs::write(
+            project_dir.join(".codex/config.toml"),
+            format!(
+                "[mcp_servers.lian-jing]\nurl = {}\nhttp_headers_helper = {}\n",
+                serde_json::to_string(&url).unwrap(),
+                serde_json::to_string(&helper).unwrap()
+            ),
+        )
+        .unwrap();
+
+        let username = format!("pilot-user-{}", &uuid::Uuid::new_v4().simple().to_string()[..8]);
+        let password = format!("pilot-pass-{}", uuid::Uuid::new_v4().simple());
+        println!("V7_PILOT_PROJECT_DIR={}", project_dir.display());
+        println!("V7_PILOT_SCOPED_URL={url}");
+        println!("V7_PILOT_PROJECT_ID={project_id}");
+        println!("V7_PILOT_HELPER={helper}");
+        println!("V7_PILOT_EXPECTED_USERNAME={username}");
+        std::io::stdout().flush().unwrap();
+
+        // 阶段 1：等客户端登记测试账户需求，再代人填写合成值。
+        let name = wait_until("客户端登记测试账户需求", Duration::from_secs(1800), || {
+            let conn = db::pool().get().ok()?;
+            conn.query_row(
+                "SELECT name FROM project_dev_variables
+                 WHERE project_id=?1 AND kind='test_account' ORDER BY name LIMIT 1",
+                [&project_id],
+                |row| row.get::<_, String>(0),
+            )
+            .ok()
+        })
+        .await;
+        {
+            let conn = db::pool().get().unwrap();
+            crate::commands::dev_variables::save_test_account(
+                &conn,
+                &WindowsCredentialStore,
+                &project_id,
+                &name,
+                &username,
+                &password,
+            )
+            .unwrap();
+        }
+        std::fs::write(pilot_dir.join("filled"), &name).unwrap();
+        println!("V7_PILOT_FILLED={name}");
+        std::io::stdout().flush().unwrap();
+
+        // 阶段 2：客户端跨会话读取后，由操作者放置 revoke 标记，宿主代人撤销。
+        wait_until("撤销标记 .pilot/revoke", Duration::from_secs(1800), || {
+            pilot_dir.join("revoke").exists().then_some(())
+        })
+        .await;
+        {
+            let conn = db::pool().get().unwrap();
+            crate::commands::dev_variables::revoke(&conn, &WindowsCredentialStore, &project_id, &name)
+                .unwrap();
+        }
+        std::fs::write(pilot_dir.join("revoked"), &name).unwrap();
+        println!("V7_PILOT_REVOKED={name}");
+        std::io::stdout().flush().unwrap();
+
+        // 阶段 3：撤销后再读由客户端验证失败；finish 标记后检查改动边界。
+        wait_until("结束标记 .pilot/finish", Duration::from_secs(1800), || {
+            pilot_dir.join("finish").exists().then_some(())
+        })
+        .await;
+        server.abort();
+        {
+            let conn = db::pool().get().unwrap();
+            let statuses = crate::commands::dev_variables::list(
+                &conn,
+                &WindowsCredentialStore,
+                &project_id,
+            )
+            .unwrap();
+            assert!(statuses.iter().all(|status| !status.configured));
+        }
+        let mut pending = vec![project_dir.clone()];
+        while let Some(dir) = pending.pop() {
+            for entry in std::fs::read_dir(&dir).unwrap() {
+                let path = entry.unwrap().path();
+                if path.is_dir() {
+                    pending.push(path);
+                    continue;
+                }
+                let file_name = path.file_name().unwrap().to_string_lossy();
+                assert!(!file_name.starts_with(".env"), "项目目录出现 {file_name}");
+                let content = std::fs::read_to_string(&path).unwrap_or_default();
+                assert!(!content.contains(&token), "{} 含 MCP token", path.display());
+                assert!(!content.contains(&password), "{} 含测试密码", path.display());
+            }
+        }
+        drop(guard);
+        assert!(crate::credential_store::read_mcp_auth_token_for_digest(
+            &WindowsCredentialStore,
+            &digest
+        )
+        .is_err());
+        assert!(!project_dir.exists());
+    }
+
     #[tokio::test]
     async fn readiness_probe_does_not_satisfy_client_reload_evidence() {
         let project_id = "reload-evidence-fixture";