[FEATURE] allow me to update my punchlist/tasklist in a /btw command

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

I maintain a punchlistof small/tactical/cleanup tasks to be performed. Others may call it task list or something else.

I observe what scrolls by in the terminal as claude is processing requests. Often I see things go by warn/remind me of things that need to be cleaned up ... they need to be added to the punchlist.

It seems to me that this is an ideal use for /btw ... a side note that does not interrupt current processing.

Unfortunately /btw does not have sufficient context/access to be able to update my punchlist on-the-fly. I must record my punchlist items elsewhere and then have claude code add them to the punch list when the current task processing has completed.

Proposed Solution

I request that /btw have sufficient context/access to be able to update my punchlist held in
~/.claude/projects/-Users-mth-decimal128/memory/Punchlist.md
during processing

Alternative Solutions

My current workaround is to try to remember them in my head.
Sometimes I jot them in a text editor.

I am afraid to try to use another claude code because I don't know if it is safe to have concurrent instances (potentially) updating my Punchlist.md specifically and my ~/.claude/ more generally.

Priority

Medium - Would be very helpful

Feature Category

CLI commands and flags

Use Case Example

1. run stuff
2. watch screen
3. see something
4. add new task to punchlist
5. don't worry (about new sub-task being lost)
6. be happy

Additional Context

_No response_