Check that all code has appropriate documentation.

Arguments: $ARGUMENTS (optional scope)

• commit: Check only staged files

• pr: Check all files changed in the current PR

• all: Check the entire codebase

• If no argument provided:

• If in a PR branch: defaults to 'pr'

• Otherwise: defaults to 'commit'

Phase 1: Scope Determination

• Determine scope based on $ARGUMENTS

Phase 2: Documentation Analysis

• Identify functions/classes lacking documentation

• Check quality of existing documentation

• Extract project documentation standards from CLAUDE.md

Phase 3: Documentation Updates

For identified gaps:

• Generate documentation following project conventions

• Apply language-specific formats (roxygen2, docstrings, JSDoc)

• Use @inheritParams in R to avoid duplication

For R projects: Run devtools::document() to update man/ files

Phase 4: Quality Verification

• Verify documentation format compliance and no broken references

Phase 5: Report Results

• Summary of files checked, documentation added/updated, and remaining issues

Auto-Exit When Standalone

IMPORTANT: If this command is being run as a standalone request, automatically exit after completing all phases successfully.