/aide:build — Build Phase

Agent: This command is executed by the aide-implementor agent.

Execute the architect's implementation plan. This is the implementor phase in build mode — the session that turns plan.aide into working, tested code without making architectural decisions mid-session.

Checklist

• Read plan.aide in the target module. This is the primary input — it names files, sequencing, and which existing helpers to reuse
• Read brief.aide in the same folder — the architectural-commitments file authored by the strategist during synthesize and refined by the architect during plan. Type shapes, exact strings, cross-module contracts, schema cardinality. Honor every commitment exactly. When a plan step says "honor commitment #11," #11 in brief.aide is the source of truth
• Check ## Prerequisites. If the plan declares prerequisites, verify they exist and export the expected contracts before writing any code. If a prerequisite is missing or doesn't match, stop and escalate back to the orchestrator — do not improvise
• Read the intent spec (.aide or intent.aide) for the target module. The plan tells you what to build; brief.aide tells you the architectural shape it must take; the intent spec tells you what counts as domain-correct
• Execute the plan steps top-to-bottom. Check each checkbox in plan.aide as you complete it. Do not reorder steps, skip steps, or add steps. If a step is ambiguous, stop and escalate back to the architect via /aide:plan rather than inventing an answer
• When build resolves an open question from brief.aide, update the file: append a new numbered commitment capturing the resolution, remove the question from ## Open questions. Numbers stay stable — do not renumber existing commitments
• Write the code. No architectural improvisation — if a decision is not in plan.aide, brief.aide, or .aide, it is out of scope for this session
• Write tests covering every behavior the spec's outcomes.desired names, plus regression coverage for outcomes.undesired. Tests are also where to assert brief.aide commitments the type system can't enforce alone (exact strings, schema cardinality, enum membership, parser rejection rules)
• Run the tests until green
• Run the type checker (tsc --noEmit or the project's equivalent)
• Run aide_validate to check for spec issues introduced during the build
• Hand off to /aide:qa — the QA agent will compare actual output against the spec's outcomes block (and consult brief.aide for structural clarification)