[Bug] Claude Code generating hallucinated responses or fabricating information

Bug Description
hallucinated responses or fabricating information

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.118
• Feedback ID: 301d5881-9bb3-48af-935b-4fa67134fe65

Errors

[{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3448)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T18:42:19.194Z"},{"error":"McpToolCallError: MCP error -32602: Input validation error: Invalid arguments for tool insight-update: [\n  {\n    \"origin\": \"string\",\n    \"code\": \"too_big\",\n    \"maximum\": 400,\n    \"inclusive\": true,\n    \"path\": [\n      \"description\"\n    ],\n    \"message\": \"Too big: expected string to have <=400 characters\"\n  }\n]\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T18:57:03.809Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `information_schema.tables`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:19:36.464Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `public_postgres_daily_ad_spend`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:19:50.138Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `public.windsor.dailyspend`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:20:02.744Z"},{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3448)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:20:05.429Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `pinterestads_campaign_stats`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:20:51.233Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `pinterest_campaign_stats`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:20:58.847Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `pinterest_ad_group_report`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:21:03.844Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `public_postgres_users`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:21:36.383Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `public_users`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:21:41.926Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `users`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:21:46.977Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `app_db_sync_users`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:27:32.305Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `app_db_sync.users`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:27:38.723Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: Unknown table `users`.\n    at uL7 (/$bunfs/root/src/entrypoints/cli.js:4736:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-23T19:27:43.329Z"},{"error":"McpToolCallError: Error: [query-run]: Failed to query insight: Validation error: There is no supertype for types Float64, Decimal(38, 2), Decimal(38, 2), Decimal(38, 2), Decimal(38, 2), Float64, Float64, Float64, Decimal(38, 2), Decimal(38, 2) because some of them have no lossless conversion to Decimal.\n    at uL7 (/$bunfs…

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