The check_existing_branches (bash) and Get-NextBranchNumber (PowerShell)
functions were only looking for branches/specs matching the SAME short name
when determining the next feature number. This caused collisions where
multiple features could be assigned the same number if they had different
short names.
For example, if feature 023-ci-optimization existed, creating a new feature
with a different short name would incorrectly use 001 instead of 024.
This fix changes both functions to:
1. Use get_highest_from_branches() / Get-HighestNumberFromBranches to find
the highest number across ALL branches globally
2. Use get_highest_from_specs() / Get-HighestNumberFromSpecs to find the
highest number across ALL spec directories globally
3. Return the maximum of both + 1
The helper functions already existed but were not being used. This fix
properly utilizes them to ensure features are numbered sequentially
regardless of their short names.
Issue: Branch number collisions when creating features with different names
Impact: Prevents multiple features from sharing the same number prefix
Refactored both Bash and PowerShell create-new-feature scripts to modularize and deduplicate logic for determining the next feature number, including new helper functions for extracting the highest number from specs and branches. Improved branch name cleaning and generation. In update-agent-context scripts, removed redundant updates to AGENTS.md for Copilot, streamlining agent update logic.
- Use git ls-remote for more reliable remote branch detection
- Check remote branches, local branches, AND specs directories
- Match exact short-name pattern to avoid false positives
- Ensures no duplicate numbers across all sources
- Add --number parameter to create-new-feature scripts (bash & PowerShell)
- Add check_existing_branches() function to fetch and scan remote branches
- Update branch numbering logic to check remotes before creating new branches
- Update /speckit.specify command to document remote branch checking workflow
- Prevents duplicate branch numbers when branches exist on remotes but not locally
- Maintains backward compatibility with existing workflows
- Falls back to local directory scanning when Git is not available
