[FEATURE] Don't block Edit tool for files read in session it was forked from

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

When using --fork-session the Read calls history on the files, doesn't seem to be transferred. So when Claude tries to Edit a file it already read in the session it was forked from, it gets blocked. Claude then needs to re-read lines it already has in context, which is a waste of time and tokens.

Proposed Solution

Have Read() call history be part of the forked data too, so there are no unnecessary re-reads needed to edit files already in context.

Alternative Solutions

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Priority

Medium - Would be very helpful

Feature Category

File operations

Use Case Example

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Additional Context

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