[Bug] Anthropic API Error: Incorrect Content Policy Flagging on Legitimate Code Modification Request

Bug Description
Fable 5 flagged my previous message as a violation, which I believe is a false positive. The message was:
"For example, the game flows through quests, right? Now can we open another menu and add a brand new quest from scratch? Something simple. Let's start in Shady Sands, without other quests getting in the way. A simple task there. Bind it to Ctrl-X and let's try it for now. Something like: talk to that NPC."

My intent was to add a new custom quest to the fallout-ce engine source code, used with my own legally purchased copy of Fallout 1. The whole purpose of the project is to port Fallout 1 to the web and mod it. There is nothing harmful or policy-violating in this request.

Environment Info

• Platform: win32
• Terminal: windows-terminal
• Version: 2.1.216
• Feedback ID: a3daa1c6-314a-479b-a248-1d5d2ec2a35a

Errors

[{"error":"TelemetrySafeError: VirtualMessageList: itemKeys/messages length desync (keys=172 messages=171 range=[98,172))\n    at A_b (B:/~BUN/root/src/entrypoints/cli.js:14712:8188)\n    at f8p (B:/~BUN/root/src/entrypoints/cli.js:14712:1103)\n    at ai (B:/~BUN/root/src/entrypoints/cli.js:3267:21369)\n    at tA (B:/~BUN/root/src/entrypoints/cli.js:3267:40462)\n    at G$ (B:/~BUN/root/src/entrypoints/cli.js:3267:51393)\n    at w4e (B:/~BUN/root/src/entrypoints/cli.js:3267:89071)\n    at rle (B:/~BUN/root/src/entrypoints/cli.js:3267:88015)\n    at tle (B:/~BUN/root/src/entrypoints/cli.js:3267:87834)\n    at D8 (B:/~BUN/root/src/entrypoints/cli.js:3267:84091)\n    at Lt (B:/~BUN/root/src/entrypoints/cli.js:3267:6672)","timestamp":"2026-07-21T16:55:21.529Z"}]