[Bug] Plan mode not enforced; tool calls continue despite plan-mode indicator

Bug Description
plan mode is not being enforced; tool calls continued despite plan-mode indicator and repeated re-entry system-reminders.

Environment Info

• Platform: darwin
• Terminal: rio
• Version: 2.1.114
• Feedback ID: e7635a30-5cd3-44af-9186-39418704db0b

Errors

[{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3448)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T14:25:18.995Z"},{"error":"Error: EISDIR: illegal operation on a directory, read '/Users/range/bioneon/Assets/Scripts/Core/Organelles'\n    at nKH (/$bunfs/root/src/entrypoints/cli.js:1564:144)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T14:27:44.331Z"},{"error":"Error: File does not exist. Note: your current working directory is /Users/range/bioneon.\n    at call (/$bunfs/root/src/entrypoints/cli.js:4732:7630)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T14:28:04.158Z"},{"error":"Error: EISDIR: illegal operation on a directory, read '/Users/range/bioneon/Assets/Scripts/Core.Tests'\n    at nKH (/$bunfs/root/src/entrypoints/cli.js:1564:144)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T14:29:05.694Z"},{"error":"MaxFileReadTokenExceededError: File content (26184 tokens) exceeds maximum allowed tokens (25000). Use offset and limit parameters to read specific portions of the file, or search for specific content instead of reading the whole file.\n    at nj7 (/$bunfs/root/src/entrypoints/cli.js:4723:12550)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T15:30:28.115Z"},{"error":"McpError: MCP error -32001: user-cancel\n    at D (/$bunfs/root/src/entrypoints/cli.js:93:55308)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:93:55566)\n    at abort (unknown)\n    at $q1 (/$bunfs/root/src/entrypoints/cli.js:814:3782)\n    at abort (unknown)\n    at $q1 (/$bunfs/root/src/entrypoints/cli.js:814:3782)\n    at abort (unknown)\n    at u2H (/$bunfs/root/src/entrypoints/cli.js:8398:7562)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:8360:4675)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:621:9149)","timestamp":"2026-04-18T17:26:18.383Z"},{"error":"McpToolCallError: {\n  \"success\": false,\n  \"error\": \"Unity not detected (no fresh discovery files found)\"\n}\n    at CJ7 (/$bunfs/root/src/entrypoints/cli.js:4759:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T17:38:18.633Z"},{"error":"McpToolCallError: {\n  \"success\": false,\n  \"error\": \"UNEXPECTED_ERROR: Object reference not set to an instance of an object\"\n}\n    at CJ7 (/$bunfs/root/src/entrypoints/cli.js:4759:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T17:38:50.972Z"},{"error":"McpToolCallError: {\n  \"success\": false,\n  \"error\": \"UNEXPECTED_ERROR: Object reference not set to an instance of an object\"\n}\n    at CJ7 (/$bunfs/root/src/entrypoints/cli.js:4759:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T17:39:13.520Z"},{"error":"McpToolCallError: {\n  \"success\": false,\n  \"error\": \"UNEXPECTED_ERROR: Object reference not set to an instance of an object\"\n}\n    at CJ7 (/$bunfs/root/src/entrypoints/cli.js:4759:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T17:39:47.933Z"},{"error":"McpToolCallError: {\n  \"success\": false,\n  \"error\": \"UNEXPECTED_ERROR: Object reference not set to an instance of an object\"\n}\n    at CJ7 (/$bunfs/root/src/entrypoints/cli.js:4759:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T17:40:01.122Z"},{"error":"McpToolCallError: {\n  \"success\": false,\n  \"error\": \"UNEXPECTED_ERROR: Object reference not set to an instance of an object\"\n}\n    at CJ7 (/$bunfs/root/src/entrypoints/cli.js:4759:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T17:40:11.629Z"},{"error":"McpToolCallError: {\n  \"success\": false,\n  \"error\": \"UNEXPECTED_ERROR: Object reference not set to an instance of an object\"\n}\n    at CJ7 (/$bunfs/root/src/entrypoints/cli.js:4759:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T17:40:24.623Z"},{"error":"McpToolCallError: {\n  \"success\": false,\n  \"error\": \"UNEXPECTED_ERROR: Object reference not set to an instance of an object\"\n}\n    at CJ7 (/$bunfs/root/src/entrypoints/cli.js:4759:63)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T17:40:34.820Z"},{"error":"McpToolCallError: {\n  \"success\": false,\n  \"error\": \…

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