Write SDD

Create or review an SDD that is structurally aligned to IEEE 1016-2009 while staying pragmatic for the project context.

Resources

• Use references/ieee-1016-2009-checklist.md for compliance gates and required content.
• Use references/sdd-template.md as the default SDD structure.
• Use references/sdd-template-implementation-deep.md when detail profile is implementation-deep.
• Use references/viewpoint-mapping.md to choose and justify design viewpoints.
• Use scripts/check_sdd_structure.py to validate mode/file contract and required headings in generated outputs.

Mandatory preflight sequence:

1. Read necessary available context first (PRD/SDD/repo docs relevant to request).
2. Recommend mode, detail profile, and interaction option based on that context.
3. Ask for user confirmation before drafting.

Do not start drafting until preflight confirmation is received, unless user explicitly uses /fast or /assume.