Create specification for CLI app with MFA support

- Define user stories for authentication, sync triggering, and status checking
- Specify functional requirements for text-based API interactions
- Define success criteria for authentication and sync operations
- Create quality checklist for specification validation

specs/006-cli-auth-sync-mfa/checklists/requirements.md

@@ -0,0 +1,34 @@
+# Specification Quality Checklist: CLI App for API Interaction with MFA
+
+**Purpose**: Validate specification completeness and quality before proceeding to planning
+**Created**: Thursday, December 18, 2025
+**Feature**: [/home/sstent/Projects/FitTrack/GarminSync/specs/006-cli-auth-sync-mfa/spec.md](spec.md)
+
+## Content Quality
+
+- [x] No implementation details (languages, frameworks, APIs) - Updated from "command-line interface" to "text-based interface"
+- [x] Focused on user value and business needs
+- [x] Written for non-technical stakeholders - Removed language-specific details
+- [x] All mandatory sections completed
+
+## Requirement Completeness
+
+- [x] No [NEEDS CLARIFICATION] markers remain
+- [x] Requirements are testable and unambiguous
+- [x] Success criteria are measurable
+- [x] Success criteria are technology-agnostic (no implementation details)
+- [x] All acceptance scenarios are defined
+- [x] Edge cases are identified
+- [x] Scope is clearly bounded
+- [x] Dependencies and assumptions identified - Added Assumptions section
+
+## Feature Readiness
+
+- [x] All functional requirements have clear acceptance criteria
+- [x] User scenarios cover primary flows
+- [x] Feature meets measurable outcomes defined in Success Criteria
+- [x] No implementation details leak into specification
+
+## Notes
+
+- All items have been completed and validated.