[compound-engineering] Feature Request: Add daily sequence number to plan filenames

[alexeyda]

Feature Request

Component: Skill - compound-engineering:workflows:plan
Summary: Add daily auto-increment sequence number to plan filenames

Current Behavior

Plans are created with format: yyyy-mm-dd-feat-description-plan.md

Example: 2026-01-29-feat-registration-pages-layout-plan.md

Proposed Behavior

Add a daily sequence number: yyyy-mm-dd-nnn-feat-description-plan.md

Where nnn is an auto-incremented ID that resets each day.

Examples:

• 2026-01-29-001-feat-registration-pages-layout-plan.md
• 2026-01-29-002-refactor-test-structure-plan.md
• 2026-01-29-003-fix-auth-flow-plan.md

Rationale

• When creating many plans in a single day, the current format makes it difficult to:
  • Sort plans by creation order
  • Quickly identify which plans were created first
  • Reference specific plans by a short identifier
• The sequence number provides natural ordering within a day

Implementation Notes

The sequence number should:

1. Scan existing files in docs/plans/ for the current date
2. Find the highest existing sequence number for that date
3. Increment by 1 for the new plan
4. Use zero-padded 3-digit format (001, 002, etc.)

Environment

• Plugin Version: 2.28.0
• Claude Code Version: 2.1.23
• OS: Linux 6.16.12-061612-generic x86_64