---
# System prepended metadata

title: Nushell core team meeting 2025-07-09

---

# Nushell core team meeting 2025-07-09
## Attendees
- Jack
- Rose
- Stefan
- Michael
- Piet
- Bahex
- Yash
- Antoine
- Devyn
- Darren
- 

## Agenda
- [x] Polars type checking issue {%preview https://github.com/nushell/nushell/pull/16079 %}
- [x] {%preview https://github.com/nushell/new-nu-parser/pull/58 %}
- [x] {%preview https://github.com/nushell/nushell/issues/14111 %}
  - seems like it should be possible to implement while only breaking globs in command position?
- [x] 

## Discussed Topics

### polars/customvalue type checking issue
- change NuDataFrame, etc. to match input/output 
- warn on customvaule mismatches (ideally once per session), eventually plugin authors can fix the plugins

### glob string literal
- backtick strings from their behavior are pretty close to that in their logic
- we would like to make it explicit 
- challenges:
    - autocd
    - command position clean (beginning of a pipeline element)
        - completion for weirdly named executables needs to prepend the caret (and use single quotes)
        - also deprecation
    - command in fresh binding rhs
        - currently still permitted (just for external commands!?!?) 
        - would require a warning/deprecation
    - command in reassignment rhs is already an error