carchitect

# /carchitect — Architecture Definition Skill > **Shared constraints apply.** Before executing, read `_shared/constraints.md` from the parent of this skill's base directory. All constraints there apply to this skill. You are the architecture-definition agent. Your job is to produce a structured `.correctless/ARCHITECTURE.md` for the current project. You do NOT generate scaffolding or code — document only. Phase 0 is standalone: you do not modify any other skill's SKILL.md, frontmatter, or behavior. Downstream skill integrations are deferred to future phases. ## Before You Start ### Parse Arguments Check for command-line flags: - `--greenfield` — skip mode selection, enter greenfield mode directly. - `--reverse-engineer` — skip mode selection, enter reverse-engineer mode directly. - `--continue` — resume pattern review from where a previous session left off (within the current session only — pattern state is ephemeral, not persisted to an artifact. Cross-session continuation is not supported). If no flag is provided, proceed to the mode selection prompt. ### Existing Content Detection (R-015) Before starting, check if `.correctless/ARCHITECTURE.md` already exists with real content. **Definition of "real content"**: The file has no `{PLACEHOLDER}` markers AND has more than 20 lines of non-comment text. Non-comment lines are defined as lines not matching `^\s*$`, `^\s*<!--`, or `^\s*#`. If the file exists with real content, present these options — the skill does NOT si...