claude-code - 💡(How to fix) Fix [Bug] Claude Code generating hallucinated responses or fabricating information [1 comments, 2 participants]

[{"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…

TL;DR

Check the database schema and table names to ensure they match the queries being executed, as the errors suggest unknown tables and validation errors.

Guidance

• Verify the database schema to ensure the tables mentioned in the error messages (e.g., information_schema.tables, public_postgres_daily_ad_spend, public.windsor.dailyspend, etc.) exist and have the correct structure.
• Check the queries being executed to ensure they are correctly formatted and referencing the correct table names.
• Review the error messages for any hints about invalid arguments or data types, such as the "Too big" error for a string exceeding 400 characters.
• Consider checking the database connection and permissions to ensure the application has access to the necessary tables and data.

Example

No specific code snippet can be provided without more context, but ensuring table names and schema match between the database and queries is crucial.

Notes

The issue seems to be related to database queries and schema, but without more information about the application code and database setup, it's difficult to provide a more specific solution. The error messages suggest a mix of issues, including unknown tables, invalid arguments, and data type mismatches.

Recommendation

Apply a workaround by verifying and correcting the database schema and table names to match the queries being executed, as this seems to be the most pressing issue based on the error messages provided.