diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
new file mode 100644
index 00000000..bee9294f
--- /dev/null
+++ b/.vscode/c_cpp_properties.json
@@ -0,0 +1,76 @@
+{
+	"configurations": [
+		{
+			"name": "Linux",
+			"includePath": [
+				"${workspaceFolder}"
+			],
+			"cStandard": "c11",
+			"cppStandard": "c++11",
+			"compilerPath": "${workspaceFolder}/o/third_party/gcc/bin/x86_64-linux-musl-gcc",
+			"defines": [
+				"__VSCODE_INTELLISENSE__",
+				"__BIGGEST_ALIGNMENT__",
+				"__SHRT_MAX__",
+				"__DBL_MIN__",
+				"__UINT32_MAX__",
+				"NULL=(void*)0",
+				"true",
+				"false=(!(true))",
+				"COSMOPOLITAN_C_START_=",
+				"COSMOPOLITAN_C_END_=",
+				"libcesque=",
+				"mallocesque=",
+				"pureconst=",
+				"paramsnonnull(x)=",
+				"alignas(x)",
+				"alignof(x)",
+				"artificial=",
+				"nodiscard=",
+				"mayalias=",
+				"_Vector_size(x)=",
+				"forceinline=",
+				"forcealign(x)=",
+				"wontreturn=",
+				"textreal=",
+				"vallocesque=",
+				"nosideeffect=",
+				"unreachable=",
+				"thatispacked=",
+				"nothrow=",
+				"nocallback=",
+				"relegated=",
+				"hidden=",
+				"textstartup=",
+				"initarray=",
+				"returnsnonnull=",
+				"returnspointerwithnoaliases=",
+				"printfesque(x)=",
+				"attributeallocsize(x)=",
+				"va_list=void*",
+				"returnsaligned(x)=",
+				"attributeallocalign(x)=",
+				"nullterminated(x)=",
+				"PAGESIZE",
+				"g_loglevel",
+				"int8_t=signed char",
+				"int16_t=signed short int",
+				"int32_t=signed int",
+				"int64_t=signed long long",
+				"uint8_t=unsigned char",
+				"uint16_t=unsigned short int",
+				"uint32_t=unsigned int",
+				"uint64_t=unsigned long long",
+				"errno_t=int",
+				"size_t=uint64_t",
+				"ssize_t=int64_t",
+				"uintptr_t=uint64_t",
+				"intptr_t=int64_t",
+				"bool=uint8_t",
+				"char16_t=uint16_t",
+				"char32_t=uint32_t"
+			]
+		}
+	],
+	"version": 4
+}
diff --git a/libc/bits/safemacros.h b/libc/bits/safemacros.h
index f9a3eabc..d7b839b6 100644
--- a/libc/bits/safemacros.h
+++ b/libc/bits/safemacros.h
@@ -16,7 +16,8 @@ const char *emptytonull(const char *);
 const char *firstnonnull(const char *, const char *);
 uint64_t(unsignedsubtract)(uint64_t, uint64_t) pureconst;
 
-#if !defined(__STRICT_ANSI__) && defined(__GNUC__)
+#if !defined(__STRICT_ANSI__) && defined(__GNUC__) && \
+!defined(__VSCODE_INTELLISENSE__)
 
 #define min(x, y)              \
   ({                           \
diff --git a/libc/log/check.h b/libc/log/check.h
index 38ef2636..f7b0b0f7 100644
--- a/libc/log/check.h
+++ b/libc/log/check.h
@@ -47,6 +47,9 @@ COSMOPOLITAN_C_START_
     VAR = (typeof(VAR))__builtin_assume_aligned(VAR, BYTES); \
   } while (0)
 
+#if defined(__VSCODE_INTELLISENSE__)
+#define __CHK(...)
+#else
 #define __CHK(SUFFIX, OP, WANT, WANTSTR, GOT, GOTSTR, ...)                   \
   do {                                                                       \
     autotype(GOT) Got = (GOT);                                               \
@@ -61,7 +64,11 @@ COSMOPOLITAN_C_START_
       unreachable;                                                           \
     }                                                                        \
   } while (0)
+#endif /* defined(__VSCODE_INTELLISENSE__) */
 
+#if defined(__VSCODE_INTELLISENSE__)
+#define __DCHK(...)
+#else
 #ifdef NDEBUG
 #define __DCHK(SUFFIX, OP, WANT, WANTSTR, GOT, ...) \
   do {                                              \
@@ -74,7 +81,8 @@ COSMOPOLITAN_C_START_
 #else
 #define __DCHK(SUFFIX, OP, WANT, WANTSTR, GOT, GOTSTR, ...) \
   __CHK(SUFFIX, OP, WANT, WANTSTR, GOT, GOTSTR, __VA_ARGS__)
-#endif
+#endif /* NDEBUG */
+#endif /* defined(__VSCODE_INTELLISENSE__) */
 
 #ifdef NDEBUG
 #define __DCHK_ALIGNED(BYTES, VAR)
diff --git a/libc/runtime/gc.h b/libc/runtime/gc.h
index 46aec7c4..9ca8bec9 100644
--- a/libc/runtime/gc.h
+++ b/libc/runtime/gc.h
@@ -30,6 +30,7 @@ void gclongjmp(jmp_buf, int) nothrow wontreturn paramsnonnull();
 /**
  * Calls FN(ARG) when function returns.
  */
+#ifndef __VSCODE_INTELLISENSE__
 #define defer(FN, ARG)                                                 \
   ({                                                                   \
     autotype(ARG) Arg = (ARG);                                         \
@@ -39,6 +40,7 @@ void gclongjmp(jmp_buf, int) nothrow wontreturn paramsnonnull();
     asm volatile("" : "+g"(Arg) : : "memory");                         \
     Arg;                                                               \
   })
+#endif /* __VSCODE_INTELLISENSE__ */
 
 void __defer(struct StackFrame *, void *, void *) hidden paramsnonnull((1, 2));
 
diff --git a/libc/runtime/symbolic.h b/libc/runtime/symbolic.h
index 8a6280a8..8edbb825 100644
--- a/libc/runtime/symbolic.h
+++ b/libc/runtime/symbolic.h
@@ -6,6 +6,9 @@
 #define SYMBOLIC(NAME) NAME(%rip)
 #define LITERALLY(NAME) $NAME
 /* clang-format on */
+#elif defined(__VSCODE_INTELLISENSE__)
+#define SYMBOLIC(NAME) 1
+#define LITERALLY(NAME) 1
 #else
 #define SYMBOLIC(NAME) NAME
 #define LITERALLY(NAME) NAME