gh-edmundmiller-dotfiles-config-claude-plugins-jj/commands/split.md

allowed-tools, argument-hint, description, model

allowed-tools	argument-hint	description	model
Bash(jj log:*), Bash(jj diff:*), Bash(jj status:*), Bash(jj new:*), Bash(jj move:*), Bash(jj describe:*), Bash(~/bin/jj-ai-desc.py:*)	<pattern>	Split unwanted changes into new child commit with AI description	claude-haiku-4-5

!# Validate pattern argument

if [ -z "$ARGUMENTS" ]; then echo "❌ Error: Pattern required" echo "" echo "Usage: `/jj:split `" echo "" echo "Common patterns:" echo "- `test` - Test and spec files" echo "- `docs` - Documentation (.md, README, CHANGELOG)" echo "- `config` - Config files (.json, .yaml, .toml)" echo "- Custom glob patterns (e.g., `.md`, `src/**/.test.ts`)" echo "" echo "What it does:" echo "1. Keeps wanted changes in current commit (@)" echo "2. Moves unwanted (matching pattern) changes to new child commit" echo "3. Auto-generates description for child commit" echo "" echo "Example: `/jj:split test` - splits test files into new child commit" exit 0 fi

Context

• Current status: !jj status
• Current commit: !jj log -r @ --no-graph -T 'concat(change_id.short(), ": ", description)'
• Changed files: !jj diff -r @ --summary

Your Task

Split unwanted changes matching pattern "$ARGUMENTS" from current commit (@) into a new child commit with an AI-generated description.

Pattern Expansion:

• test → Match test files: *test*.{py,js,ts,jsx,tsx,java,go,rs,cpp,c,h}, *spec*.{py,js,ts,jsx,tsx}, test_*.py, *_test.go, *Test.java
• docs → Match documentation: *.md, README*, CHANGELOG*, LICENSE*, docs/**/*
• config → Match config files: *.json, *.yaml, *.yml, *.toml, *.ini, *.conf, .*.rc, .*ignore
• Custom patterns → Use as-is (glob syntax)

Workflow:

1. Identify matching files - Show which files in current commit match the pattern
2. Create child commit - jj new @ to create empty child where split changes will go
3. Move matching changes - jj move --from @- -p 'glob:pattern' to move unwanted files from parent to child
4. Generate description - Use ~/bin/jj-ai-desc.py @ to analyze split changes and generate commit message
5. Show result - Display final commit structure

Result structure:

@ (new child): unwanted changes with AI description
@- (original): wanted changes, original description preserved

Important notes:

• Use multiple -p flags for multiple patterns: jj move --from @- -p 'glob:*.md' -p 'glob:README*'
• Always quote glob patterns: 'glob:pattern'
• The original commit description stays intact, only the unwanted changes move
• If no files match, inform user and suggest alternatives
• After moving, the AI will analyze what was split and generate an appropriate description

Example execution:

# Split test files
jj new @
jj move --from @- -p 'glob:**/*test*.py' -p 'glob:**/*_test.py'
~/bin/jj-ai-desc.py @

# Split documentation
jj new @
jj move --from @- -p 'glob:*.md' -p 'glob:README*' -p 'glob:docs/**'
~/bin/jj-ai-desc.py @

# Split config files
jj new @
jj move --from @- -p 'glob:*.json' -p 'glob:*.yaml' -p 'glob:*.toml'
~/bin/jj-ai-desc.py @

Final verification:

Show the result: !jj log -r '@|@-' -T 'concat(change_id.short(), ": ", description)'