[BUG] Claude Code: Crash: JavaScript heap out of memory

Environment

• Platform (select one):
• [ ] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ x] Other: Claude Code
• Claude CLI version: 1.0.95 (Claude Code)
• Operating System: MacOS 15.6.1
• Terminal: Terminal App

Bug Description

Crash during normal operation.

Steps to Reproduce

1. Interact with the assistant
2. Message lengths and formatting vary
3. Several hours or days later, while operating with the assistant, assistant crashes

Expected Behavior

Claude Code continues to operate without interruption. A crash drops context and wastes time and resources.

Actual Behavior

Crashes and dumps error and stacktrace.

Additional Context

<--- Last few GCs --->

[57839:0x128018000] 189812216 ms: Scavenge (interleaved) 3814.7 (4104.7) -> 3806.7 (4104.7) MB, pooled: 2 MB, 1.12 / 0.00 ms (average mu = 0.224, current mu = 0.204) allocation failure;
[57839:0x128018000] 189812678 ms: Mark-Compact 3815.1 (4105.2) -> 3807.1 (4097.0) MB, pooled: 10 MB, 458.17 / 0.00 ms (average mu = 0.209, current mu = 0.194) allocation failure; scavenge might not succeed

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
----- Native stack trace -----

1: 0x102f1a164 node::OOMErrorHandler(char const*, v8::OOMDetails const&) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
2: 0x10304ba5c v8::Utils::ReportOOMFailure(v8::internal::Isolate, char const, v8::OOMDetails const&) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
3: 0x10304ba14 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate, char const, v8::OOMDetails const&) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
4: 0x103228618 v8::internal::Heap::stack() [/opt/homebrew/Cellar/node/24.4.1/bin/node]
5: 0x10322ad58 v8::internal::Heap::OldGenerationConsumedBytes() const [/opt/homebrew/Cellar/node/24.4.1/bin/node]
6: 0x10322abf8 v8::internal::Heap::RecomputeLimits(v8::internal::GarbageCollector, v8::base::TimeTicks) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
7: 0x103238584 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags)::$_1::operator()() const [/opt/homebrew/Cellar/node/24.4.1/bin/node]
8: 0x103238228 void heap::base::Stack::SetMarkerAndCallbackImpl<v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags)::$_1>(heap::base::Stack, void, void const*) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
9: 0x103980820 PushAllRegistersAndIterateStack [/opt/homebrew/Cellar/node/24.4.1/bin/node]
10: 0x103226bd8 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
11: 0x10321e7e0 v8::internal::HeapAllocator::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
12: 0x1031f6bc0 v8::internal::MaybeHandle<v8::internal::SeqOneByteString> v8::internal::FactoryBase<v8::internal::Factory>::NewRawStringWithMap<v8::internal::SeqOneByteString>(int, v8::internal::Tagged<v8::internal::Map>, v8::internal::AllocationType) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
13: 0x1031f6a64 v8::internal::FactoryBase<v8::internal::Factory>::NewStringFromOneByte(v8::base::Vector<unsigned char const>, v8::internal::AllocationType) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
14: 0x10331e9d4 v8::internal::JsonStringifier::Stringify(v8::internal::Handle<v8::internal::Union<v8::internal::Smi, v8::internal::HeapNumber, v8::internal::BigInt, v8::internal::String, v8::internal::Symbol, v8::internal::Boolean, v8::internal::Null, v8::internal::Undefined, v8::internal::JSReceiver>>, v8::internal::Handle<v8::internal::Union<v8::internal::Smi, v8::internal::HeapNumber, v8::internal::BigInt, v8::internal::String, v8::internal::Symbol, v8::internal::Boolean, v8::internal::Null, v8::internal::Undefined, v8::internal::JSReceiver>>, v8::internal::Handle<v8::internal::Object>) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
15: 0x10332233c v8::internal::JsonStringify(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Union<v8::internal::Smi, v8::internal::HeapNumber, v8::internal::BigInt, v8::internal::String, v8::internal::Symbol, v8::internal::Boolean, v8::internal::Null, v8::internal::Undefined, v8::internal::JSReceiver>>, v8::internal::Handle<v8::internal::Union<v8::internal::Smi, v8::internal::HeapNumber, v8::internal::BigInt, v8::internal::String, v8::internal::Symbol, v8::internal::Boolean, v8::internal::Null, v8::internal::Undefined, v8::internal::JSReceiver>>, v8::internal::Handle<v8::internal::Object>) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
16: 0x1030ae3d0 v8::internal::Builtin_JsonStringify(int, unsigned long, v8::internal::Isolate) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
17: 0x103a41e94 Builtins_CEntry_Return1_ArgvOnStack_BuiltinExit [/opt/homebrew/Cellar/node/24.4.1/bin/node]
18: 0x138bbee24
19: 0x103a71a20 Builtins_ArrayMap [/opt/homebrew/Cellar/node/24.4.1/bin/node]
20: 0x1039a56e0 Builtins_InterpreterEnterAtBytecode [/opt/homebrew/Cellar/node/24.4.1/bin/node]
21: 0x138d00cb0
22: 0x1384a055c
23: 0x138dc953c
24: 0x1384b3950
25: 0x138cbd4bc
26: 0x138f2011c
27: 0x138cbf3f8
28: 0x138ca4900
29: 0x138f1fb64
30: 0x13899dc88
31: 0x138c982e4
32: 0x1039a28cc Builtins_JSEntryTrampoline [/opt/homebrew/Cellar/node/24.4.1/bin/node]
33: 0x1039a2570 Builtins_JSEntry [/opt/homebrew/Cellar/node/24.4.1/bin/node]
34: 0x1031808a4 v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
35: 0x103180294 v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::DirectHandle<v8::internal::Object>, v8::internal::DirectHandle<v8::internal::Object>, v8::base::Vector<v8::internal::DirectHandle<v8::internal::Object> const>) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
36: 0x10305cf48 v8::Function::Call(v8::Isolate, v8::Local<v8::Context>, v8::Local<v8::Value>, int, v8::Local<v8::Value>) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
37: 0x102e68970 node::InternalCallbackScope::Close() [/opt/homebrew/Cellar/node/24.4.1/bin/node]
38: 0x102e68bb0 node::InternalMakeCallback(node::Environment, v8::Local<v8::Object>, v8::Local<v8::Object>, v8::Local<v8::Function>, int, v8::Local<v8::Value>, node::async_context, v8::Local<v8::Value>) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
39: 0x102e77928 node::AsyncWrap::MakeCallback(v8::Local<v8::Function>, int, v8::Local<v8::Value>*) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
40: 0x102fd4228 node::StreamBase::CallJSOnreadMethod(long, v8::Local<v8::ArrayBuffer>, unsigned long, node::StreamBase::StreamBaseJSChecks) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
41: 0x102fd57d8 node::EmitToJSStreamListener::OnStreamRead(long, uv_buf_t const&) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
42: 0x102fd7f9c node::LibuvStreamWrap::OnUvRead(long, uv_buf_t const*) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
43: 0x102fd8458 node::LibuvStreamWrap::ReadStart()::$_1::__invoke(uv_stream_s, long, uv_buf_t const) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
44: 0x1083c3af0 uv__stream_io [/opt/homebrew/Cellar/libuv/1.51.0/lib/libuv.1.dylib]
45: 0x1083caca8 uv__io_poll [/opt/homebrew/Cellar/libuv/1.51.0/lib/libuv.1.dylib]
46: 0x1083bab58 uv_run [/opt/homebrew/Cellar/libuv/1.51.0/lib/libuv.1.dylib]
47: 0x102e693ec node::SpinEventLoopInternal(node::Environment*) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
48: 0x102f43f38 node::NodeMainInstance::Run(node::ExitCode, node::Environment) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
49: 0x102f43ccc node::NodeMainInstance::Run() [/opt/homebrew/Cellar/node/24.4.1/bin/node]
50: 0x102eef808 node::Start(int, char**) [/opt/homebrew/Cellar/node/24.4.1/bin/node]
51: 0x18adb2b98 start [/usr/lib/dyld]