Unicode Parsing Error in Large Shell Snapshot Causing API Request Failure

Bug Description

• エラーメッセージ: API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: no low surrogate in string:

line 1 column 178993 (char 178992)"}}

• 現象: セッションが完全停止
• 原因: 大容量shell-snapshotファイル（99,226トークン）内のUnicode破損
• 環境: macOS Darwin 25.0.0、Sonnet 4モデル

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 1.0.53
• Feedback ID: c0482797-8363-48d9-bb11-6e4a2351d8a9

Errors

[{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code\"\nsecurity: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at checkExecSyncError (node:child_process:882:11)\n    at execSync (node:child_process:954:15)\n    at AI (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:728:6320)\n    at file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:640:16554\n    at Q (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:542:14406)\n    at MF (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:640:14339)\n    at zX (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:640:13205)\n    at MB (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:640:19174)","timestamp":"2025-07-17T03:28:24.857Z"},{"error":"MaxFileReadTokenExceededError: File content (99226 tokens) exceeds maximum allowed tokens (25000). Please use offset and limit parameters to read specific portions of the file, or use the GrepTool to search for specific content.\n    at QA4 (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1291:432)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async Object.call (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1286:5788)\n    at async J44 (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2223:9788)\n    at async a$1 (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2223:6451)\n    at async Dp (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1621:1318)\n    at async W44 (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2223:5596)\n    at async Z44 (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2223:5081)\n    at async AH (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2223:3533)\n    at async AH (file:///Users/yuyakurihara/.anyenv/envs/nodenv/versions/22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2223:4232)","timestamp":"2025-07-17T03:30:23.017Z"}]