[Bug] Anthropic API Error: Inconsistent Keyword Filtering for "think"

Bug Description
Usage of the word "think" with "haiku" triggers an infrastructure layer limit that doesn't always apply. Repro step: Tell claude what you think about something and that he should write a note about it.

Environment Info

• Platform: linux
• Terminal: konsole
• Version: 1.0.93
• Feedback ID: e6ce9050-570c-44dd-83ad-7f59767ddb1d

Errors

[{"error":"SyntaxError: Unexpected token 'I', \"I'll help \"... is not valid JSON\n    at JSON.parse (<anonymous>)\n    at file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:704:9932\n    at Q (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:671:13288)\n    at fs2 (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1058:1990)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)","timestamp":"2025-08-27T06:36:42.061Z"},{"error":"AbortError: The operation was aborted\n    at abortChildProcess (node:child_process:725:27)\n    at EventTarget.onAbortListener (node:child_process:795:7)\n    at [nodejs.internal.kHybridDispatch] (node:internal/event_target:831:20)\n    at EventTarget.dispatchEvent (node:internal/event_target:766:26)\n    at abortSignal (node:internal/abort_controller:370:10)\n    at AbortController.abort (node:internal/abort_controller:392:5)\n    at Timeout._onTimeout (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:747:75)\n    at listOnTimeout (node:internal/timers:581:17)\n    at process.processTimers (node:internal/timers:519:7)","timestamp":"2025-08-27T06:50:58.897Z"},{"error":"SyntaxError: Unexpected token 'I', \"I apologiz\"... is not valid JSON\n    at JSON.parse (<anonymous>)\n    at file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:704:9932\n    at Q (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:671:13288)\n    at fs2 (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1058:1990)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)","timestamp":"2025-08-27T06:58:53.066Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:449:20)\n    at Object.readFileSync (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:683:11451)\n    at WVA (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:744:11205)\n    at Object.call (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1767:936)\n    at call.next (<anonymous>)\n    at HM (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1772:2956)\n    at file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1786:1038\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)","timestamp":"2025-08-31T06:32:23.321Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:449:20)\n    at Object.readFileSync (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:683:11451)\n    at WVA (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:744:11205)\n    at Object.call (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1767:936)\n    at call.next (<anonymous>)\n    at HM (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1772:2956)\n    at file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1786:1038\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)","timestamp":"2025-09-02T07:39:48.704Z"},{"error":"Error: 429 {\"type\":\"error\",\"error\":{\"type\":\"rate_limit_error\",\"message\":\"This request would exceed your account's rate limit. Please try again later.\"},\"request_id\":\"req_011CSjCgbibEnssz4UUGXwht\"}\n    at P4.generate (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:926:2622)\n    at CP.makeStatusError (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:943:2101)\n    at CP.makeRequest (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:943:5314)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)","timestamp":"2025-09-02T07:45:35.638Z"},{"error":"Error: 429 {\"type\":\"error\",\"error\":{\"type\":\"rate_limit_error\",\"message\":\"This request would exceed your account's rate limit. Please try again later.\"},\"request_id\":\"req_011CSjCgc7emjPRs1Sf8faQQ\"}\n    at P4.generate (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:926:2622)\n    at CP.makeStatusError (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:943:2101)\n    at CP.makeRequest (file:///home/jgi/.claude/local/node_modules/@anthropic-ai/cl

Note: Error logs were truncated.