SDD Spec Writer

Help the user author or improve a specification document that will be consumed by the sdd-writer agent inside the SDD Triad loop. A good spec produces better proposals in fewer rounds. A vague spec produces proposals that stall.

Prerequisites

• The user must have (or be ready to articulate) the domain constraints and desired proposal structure.
• No MCP tools required — this is a pure authoring skill.

What a spec is for

The spec is the writer agent's primary input. The writer never sees the evaluation scenarios. Everything the writer needs to produce a valid proposal must be in the spec. If information is missing, the writer will guess or the loop will stall.

The spec is not where use cases, stress tests, or evaluation scenarios belong — those go in a separate scenarios file (see sdd-scenario-writer).

Required sections