diff --git a/.cargo/config.toml b/.cargo/config.toml
index 3e0fa98c..b4bf23c2 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -1,5 +1,4 @@
 [build]
-rustflags = ["-D", "warnings"]
 # sccache 编译缓存：重复构建（切分支、profile 变动、clean 后重编）命中缓存直接
 # 复用产物，跳过 rustc。缓存目录默认 ~/.cache/sccache（上限 10G）。
 rustc-wrapper = "sccache"
diff --git a/Cargo.toml b/Cargo.toml
index 716c418e..b318e328 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -64,9 +64,14 @@ tracing = { version = "0.1.44", features = ["max_level_trace", "release_max_leve
 tracing-subscriber = { version = "0.3.23", features = ["env-filter", "registry"] }
 tracing-appender = "0.2.5"
 
+# 工作区 lint：各 crate 需在自身 Cargo.toml 写 `[lints] workspace = true` 才继承。
+# rust 表把 rustc 告警升为错误（只作用于 workspace crate，依赖不受影响）；clippy
+# 表在 clippy 下生效。
+[workspace.lints.rust]
+warnings = "deny"
+
 [workspace.lints.clippy]
 all = { level = "deny", priority = -1 }
-warnings = { level = "deny", priority = -1 }
 
 [profile.release]
 # 快速 release：日常墙时间 A/B 与 test262 release 回测用。opt-level 2 与 3 的
diff --git a/crates/oxide_builtins/Cargo.toml b/crates/oxide_builtins/Cargo.toml
index b05ec73a..960bec0f 100644
--- a/crates/oxide_builtins/Cargo.toml
+++ b/crates/oxide_builtins/Cargo.toml
@@ -28,3 +28,6 @@ num-traits = "0.2"
 oxide_vm = { path = "../oxide_vm" }
 oxide_compiler = { path = "../oxide_compiler" }
 oxide_parser = { path = "../oxide_parser" }
+
+[lints]
+workspace = true
diff --git a/crates/oxide_bytecode/Cargo.toml b/crates/oxide_bytecode/Cargo.toml
index 3f641159..ae04a844 100644
--- a/crates/oxide_bytecode/Cargo.toml
+++ b/crates/oxide_bytecode/Cargo.toml
@@ -9,3 +9,6 @@ description = "OxideJS - Shared bytecode protocol and compiled module ABI"
 [dependencies]
 oxide_log = { path = "../oxide_log" }
 num-bigint = "0.4"
+
+[lints]
+workspace = true
diff --git a/crates/oxide_cfg/Cargo.toml b/crates/oxide_cfg/Cargo.toml
index 671c19af..3c8a5b73 100644
--- a/crates/oxide_cfg/Cargo.toml
+++ b/crates/oxide_cfg/Cargo.toml
@@ -14,3 +14,6 @@ oxide_log = { path = "../oxide_log" }
 [dev-dependencies]
 oxide_parser = { path = "../oxide_parser" }
 oxide_emit = { path = "../oxide_emit" }
+
+[lints]
+workspace = true
diff --git a/crates/oxide_cli/Cargo.toml b/crates/oxide_cli/Cargo.toml
index aa046d6e..b04b5ec4 100644
--- a/crates/oxide_cli/Cargo.toml
+++ b/crates/oxide_cli/Cargo.toml
@@ -28,3 +28,6 @@ rustyline.workspace = true
 ansi_term.workspace = true
 serde_json.workspace = true
 serde = { workspace = true, features = ["derive"] }
+
+[lints]
+workspace = true
diff --git a/crates/oxide_code_cache/Cargo.toml b/crates/oxide_code_cache/Cargo.toml
index bd297768..5c972448 100644
--- a/crates/oxide_code_cache/Cargo.toml
+++ b/crates/oxide_code_cache/Cargo.toml
@@ -10,3 +10,6 @@ description = "OxideJS - Compiler-independent compiled module cache"
 oxide_bytecode = { path = "../oxide_bytecode" }
 oxide_log = { path = "../oxide_log" }
 lru.workspace = true
+
+[lints]
+workspace = true
diff --git a/crates/oxide_compiler/Cargo.toml b/crates/oxide_compiler/Cargo.toml
index fdbc5971..e024c082 100644
--- a/crates/oxide_compiler/Cargo.toml
+++ b/crates/oxide_compiler/Cargo.toml
@@ -23,3 +23,6 @@ rustc-hash.workspace = true
 
 [dev-dependencies]
 oxide_code_cache = { path = "../oxide_code_cache" }
+
+[lints]
+workspace = true
diff --git a/crates/oxide_dce/Cargo.toml b/crates/oxide_dce/Cargo.toml
index 400104a6..77bf73af 100644
--- a/crates/oxide_dce/Cargo.toml
+++ b/crates/oxide_dce/Cargo.toml
@@ -17,3 +17,6 @@ oxide_log = { path = "../oxide_log" }
 oxide_parser = { path = "../oxide_parser" }
 oxide_emit = { path = "../oxide_emit" }
 oxide_vm = { path = "../oxide_vm" }
+
+[lints]
+workspace = true
diff --git a/crates/oxide_emit/Cargo.toml b/crates/oxide_emit/Cargo.toml
index 9a3f98f1..7064d75b 100644
--- a/crates/oxide_emit/Cargo.toml
+++ b/crates/oxide_emit/Cargo.toml
@@ -17,3 +17,6 @@ regex.workspace = true
 regress.workspace = true
 num-bigint = "0.4"
 
+
+[lints]
+workspace = true
diff --git a/crates/oxide_engine/Cargo.toml b/crates/oxide_engine/Cargo.toml
index 0b01d9fd..0ed098be 100644
--- a/crates/oxide_engine/Cargo.toml
+++ b/crates/oxide_engine/Cargo.toml
@@ -13,3 +13,6 @@ oxide_compiler = { path = "../oxide_compiler" }
 oxide_kernel = { path = "../oxide_kernel" }
 oxide_vm = { path = "../oxide_vm" }
 oxide_types = { path = "../oxide_types" }
+
+[lints]
+workspace = true
diff --git a/crates/oxide_ir/Cargo.toml b/crates/oxide_ir/Cargo.toml
index e2160f73..38a26cbf 100644
--- a/crates/oxide_ir/Cargo.toml
+++ b/crates/oxide_ir/Cargo.toml
@@ -10,3 +10,6 @@ description = "OxideJS - IR intermediate representation and lowering to bytecode
 oxide_bytecode = { path = "../oxide_bytecode" }
 oxide_log = { path = "../oxide_log" }
 smallvec.workspace = true
+
+[lints]
+workspace = true
diff --git a/crates/oxide_kernel/Cargo.toml b/crates/oxide_kernel/Cargo.toml
index fda2f9e9..94f35bac 100644
--- a/crates/oxide_kernel/Cargo.toml
+++ b/crates/oxide_kernel/Cargo.toml
@@ -15,3 +15,6 @@ bumpalo.workspace = true
 hashbrown.workspace = true
 dashmap.workspace = true
 rustc-hash.workspace = true
+
+[lints]
+workspace = true
diff --git a/crates/oxide_liveness/Cargo.toml b/crates/oxide_liveness/Cargo.toml
index 1f491614..df9b15e1 100644
--- a/crates/oxide_liveness/Cargo.toml
+++ b/crates/oxide_liveness/Cargo.toml
@@ -15,3 +15,6 @@ oxide_log = { path = "../oxide_log" }
 oxide_parser = { path = "../oxide_parser" }
 oxide_emit = { path = "../oxide_emit" }
 oxide_bytecode = { path = "../oxide_bytecode" }
+
+[lints]
+workspace = true
diff --git a/crates/oxide_log/Cargo.toml b/crates/oxide_log/Cargo.toml
index 4c6fc6da..6717b69a 100644
--- a/crates/oxide_log/Cargo.toml
+++ b/crates/oxide_log/Cargo.toml
@@ -10,3 +10,6 @@ description = "OxideJS - Structured logging subsystem (tracing-based)"
 tracing = { workspace = true, features = ["max_level_trace", "release_max_level_debug"] }
 tracing-subscriber = { workspace = true, features = ["env-filter", "registry"] }
 tracing-appender = "0.2.5"
+
+[lints]
+workspace = true
diff --git a/crates/oxide_parser/Cargo.toml b/crates/oxide_parser/Cargo.toml
index 75e94e6a..60799919 100644
--- a/crates/oxide_parser/Cargo.toml
+++ b/crates/oxide_parser/Cargo.toml
@@ -16,3 +16,6 @@ oxc_span.workspace = true
 oxc_diagnostics.workspace = true
 oxc_syntax.workspace = true
 oxc_semantic = "0.134.0"
+
+[lints]
+workspace = true
diff --git a/crates/oxide_regalloc/Cargo.toml b/crates/oxide_regalloc/Cargo.toml
index b0d1e2f5..c3424fdc 100644
--- a/crates/oxide_regalloc/Cargo.toml
+++ b/crates/oxide_regalloc/Cargo.toml
@@ -19,3 +19,6 @@ oxide_emit = { path = "../oxide_emit" }
 oxide_vm = { path = "../oxide_vm" }
 oxide_dce = { path = "../oxide_dce" }
 oxide_compiler = { path = "../oxide_compiler" }
+
+[lints]
+workspace = true
diff --git a/crates/oxide_runtime_api/Cargo.toml b/crates/oxide_runtime_api/Cargo.toml
index 941253b6..4be60b2b 100644
--- a/crates/oxide_runtime_api/Cargo.toml
+++ b/crates/oxide_runtime_api/Cargo.toml
@@ -14,3 +14,6 @@ num-bigint = "0.4"
 num-traits = "0.2"
 oxide_log = { path = "../oxide_log" }
 ryu.workspace = true
+
+[lints]
+workspace = true
diff --git a/crates/oxide_test262/Cargo.toml b/crates/oxide_test262/Cargo.toml
index 300b2a50..872ac9de 100644
--- a/crates/oxide_test262/Cargo.toml
+++ b/crates/oxide_test262/Cargo.toml
@@ -23,3 +23,6 @@ oxide_log = { path = "../oxide_log" }
 serde = { version = "1", features = ["derive"] }
 serde_yaml = "0.9"
 walkdir = "2"
+
+[lints]
+workspace = true
diff --git a/crates/oxide_types/Cargo.toml b/crates/oxide_types/Cargo.toml
index 46026ef3..74b63289 100644
--- a/crates/oxide_types/Cargo.toml
+++ b/crates/oxide_types/Cargo.toml
@@ -16,3 +16,6 @@ num-bigint = "0.4"
 
 [dev-dependencies]
 proptest.workspace = true
+
+[lints]
+workspace = true
diff --git a/crates/oxide_vm/Cargo.toml b/crates/oxide_vm/Cargo.toml
index 2f29cfae..5b08992f 100644
--- a/crates/oxide_vm/Cargo.toml
+++ b/crates/oxide_vm/Cargo.toml
@@ -55,3 +55,6 @@ harness = false
 [[bench]]
 name = "call"
 harness = false
+
+[lints]
+workspace = true