/sdd-ff¶

Fast-Forward: generate all change documentation in one pass.

Usage¶

/sdd-ff "add health check endpoint"
/sdd-ff TICKET-789

Prerequisites¶

openspec/ initialized (via /sdd-init)

What it does¶

Runs five phases without pausing between them:

Explore — quick codebase exploration
Propose — creates proposal.md (asks questions if gaps found)
Spec — creates specs/{domain}/spec.md
Design — creates design.md (runs as agent to keep context clean)
Tasks — creates tasks.md

Design runs as a subagent because it is non-interactive and reads substantial code. The FF context stays focused on the interactive phases (propose, spec, tasks). If ambiguity is found at any point, the AI pauses to ask, then continues.

When to use¶

The change is straightforward and well-understood
You trust the AI's judgment for intermediate phases
You want to move fast

When NOT to use¶

Complex changes that need careful spec review
Changes spanning multiple domains
When the team needs to review each phase

Artifacts produced¶

proposal.md
specs/{domain}/spec.md
design.md
tasks.md

All in openspec/changes/{change-name}/.

Next step¶

/sdd-apply — implement task by task