
Security & Privacy16 min
Claude Code updatedInput Hooks: 2.1.300 Change Tested
Claude Code 2.1.300 validates updatedInput from PreToolUse hooks. I compared 2.1.299 with 2.1.300 and 2.1.306 on unknown keys, bad types, paths and Edit.
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Security & Privacy16 min
Claude Code 2.1.300 validates updatedInput from PreToolUse hooks. I compared 2.1.299 with 2.1.300 and 2.1.306 on unknown keys, bad types, paths and Edit.

Security & Privacy20 min
Claude Code hooks fail open on most events. I tested onFailure block across four builds with cases like missing scripts, exit 1, timeouts and schema errors.