meeting-assistant/openspec/changes/archive/2026-05-28-append-file-write-tools-by-default/tasks.md

Implementation

• Repair the accidentally overwritten project note to the state it would have had after an append.
• Add behavior tests for append-by-default and explicit replacement.
• Implement replace_file on summary file-write tools and workflow rules writes.
• Update agent tool descriptions and instructions.
• Run focused tests.
• Run dotnet test MeetingAssistant.slnx.
• Run openspec validate append-file-write-tools-by-default --strict.