[Bug] Claude mishandles date calculations and day-of-week determinations

Bug Description
Claude doesn't understand dates:\
YOU DON'T UNDERSTAND _DATES_!!!!

● You're absolutely right. I'm making compounding errors because I don't understand dates correctly.

Let me stop and get this straight:

Today: 2025-11-12 (which day of week?)
Friday: 2025-11-??

I clearly can't calculate this correctly. Please tell me:

1. What day of the week is TODAY (2025-11-12)?
2. What date is the upcoming Friday?

Then I'll understand what's actually wrong and what needs to be fixed.

I apologize - I should have stopped and asked for clarification instead of making it worse with incorrect "corrections."

Environment Info

• Platform: linux
• Terminal: vscode
• Version: 2.0.37
• Feedback ID: e6a4a6eb-03c0-4dbe-9a1a-642e69ef17d7

Errors

[{"error":"AbortError: The operation was aborted.\n    at unknown\n    at abortChildProcess (node:child_process:937:42)\n    at onAbortListener2 (node:child_process:35:24)\n    at abort (unknown)\n    at <anonymous> (/$bunfs/root/claude:4042:10611)\n    at spawnSync (unknown)\n    at spawnSync (node:child_process:226:22)\n    at execSync (node:child_process:275:109)\n    at CJ1 (/$bunfs/root/claude:2099:1971)\n    at <anonymous> (/$bunfs/root/claude:2099:2378)","timestamp":"2025-11-12T18:29:41.214Z"},{"error":"Error: Lock file is already being held\n    at <anonymous> (/$bunfs/root/claude:87:11926)\n    at K (/$bunfs/root/claude:86:5166)\n    at <anonymous> (node:fs:247:13)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-12T18:29:50.418Z"},{"error":"McpError: MCP error 404: Not found: Dataset intermountain-ga4-data-sink:intermountain-ga4-data-sink was not found in location US\n    at _onresponse (/$bunfs/root/claude:40:79569)\n    at <anonymous> (/$bunfs/root/claude:40:76770)\n    at processReadBuffer (/$bunfs/root/claude:42:2121)\n    at <anonymous> (/$bunfs/root/claude:42:1500)\n    at emit (node:events:95:22)\n    at addChunk (internal:streams/readable:265:47)\n    at readableAddChunkPushByteMode (internal:streams/readable:243:18)\n    at handleNumberResult (internal:streams/native-readable:69:18)\n    at <anonymous> (internal:streams/native-readable:43:68)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-12T18:34:31.587Z"},{"error":"McpError: MCP error -32603: Dataset must be specified when querying INFORMATION_SCHEMA (e.g. dataset.INFORMATION_SCHEMA.TABLES)\n    at _onresponse (/$bunfs/root/claude:40:79569)\n    at <anonymous> (/$bunfs/root/claude:40:76770)\n    at processReadBuffer (/$bunfs/root/claude:42:2121)\n    at <anonymous> (/$bunfs/root/claude:42:1500)\n    at emit (node:events:95:22)\n    at addChunk (internal:streams/readable:265:47)\n    at readableAddChunkPushByteMode (internal:streams/readable:243:18)\n    at handleNumberResult (internal:streams/native-readable:69:18)\n    at <anonymous> (internal:streams/native-readable:43:68)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-12T18:34:45.421Z"},{"error":"McpError: MCP error 403: Access Denied: Project bc-data-stage: User does not have bigquery.jobs.create permission in project bc-data-stage.\n    at _onresponse (/$bunfs/root/claude:40:79569)\n    at <anonymous> (/$bunfs/root/claude:40:76770)\n    at processReadBuffer (/$bunfs/root/claude:42:2121)\n    at <anonymous> (/$bunfs/root/claude:42:1500)\n    at emit (node:events:95:22)\n    at addChunk (internal:streams/readable:265:47)\n    at readableAddChunkPushByteMode (internal:streams/readable:243:18)\n    at handleNumberResult (internal:streams/native-readable:69:18)\n    at <anonymous> (internal:streams/native-readable:43:68)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-12T18:35:28.961Z"},{"error":"Error: Lock file is already being held\n    at <anonymous> (/$bunfs/root/claude:87:11926)\n    at K (/$bunfs/root/claude:86:5166)\n    at <anonymous> (node:fs:247:13)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-12T18:35:38.211Z"},{"error":"Error: Lock file is already being held\n    at <anonymous> (/$bunfs/root/claude:87:11926)\n    at K (/$bunfs/root/claude:86:5166)\n    at <anonymous> (node:fs:247:13)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-12T18:35:59.675Z"},{"error":"Error: Lock file is already being held\n    at <anonymous> (/$bunfs/root/claude:87:11926)\n    at K (/$bunfs/root/claude:86:5166)\n    at <anonymous> (node:fs:247:13)\n    at processTicksAndRejections (native:7:39)","timestamp":"2025-11-12T18:40:53.395Z"},{"error":"AbortError: The operation was aborted.\n    at unknown\n    at abortChildProcess (node:child_process:937:42)\n    at onAbortListener2 (node:child_process:35:24)\n    at abort (unknown)\n    at <anonymous> (/$bunfs/root/claude:3784:2211)","timestamp":"2025-1

Note: Error logs were truncated.