#History Add Before Extensions DOX

#Purpose

• Own preprocessing before messages are added to agent history.

#Ownership

• Ordered Python files own history content masking before persistence or model reuse.

#Local Contracts

• Preserve secret and sensitive-content masking before history storage.
• Do not remove fields required by downstream history organization or replay.

#Work Guidance

• Coordinate history mutation changes with message persistence and plugin-owned history consumers.

#Verification

• Test message history insertion for masked content after changes.

#Child DOX Index

No child DOX files.