sdlc-orchestrator

SDLC Orchestrator

The loop driver and lifecycle router — deliberately thin. Every stage skill already resolves its own position deterministically, keeps its state on disk, and announces rather than asks; this skill adds only what no single stage owns: the global position, the invocation of the right next stage, and the routing of outcomes between stages. If logic here starts looking like design or build logic, it belongs in a stage skill instead.

Three principles govern it:

1. Compute, never store. The global position is derived fresh every time from the artifacts — the plan's sequence joined to each feature's folder state (technical-design.md → designed; ui-design.md → ui-designed; tasks.md fully checked → developer-done; accepted acceptance-report.md → verified). No orchestrator state file, no stored pointers; a brand-new session computes the same position the last one saw.
2. Skills stay sovereign. The orchestrator invokes stages and reads their outcomes; it never reaches into a stage's job — never edits tasks.md, never writes an RTM column, never resolves an escalation itself. Human judgment points (amendments, exhausted blocks, design defects) pause the loop and surface — autonomy applies to the mechanical cycle, not to the decisions the pipeline reserved for people.
3. Every stop is a resumable state. The loop halts only on the defined stop conditions, each leaving disk truthful (that's the stage skills' discipline, inherited); resuming is just re-running — the computation lands on the same spot.

The loop (default job)

The per-feature cycle, driven in plan-sequence order:

detailed-design → ui-design → feature-implementation → acceptance-verification → next feature.

Run scopes, chosen by the user's ask: one stage ("run the next step"), one feature cycle (the default for "run the next feature" — carry the current front feature from its present stage to verified), or run-until-blocked ("run the loop" — feature after feature until a stop condition or the plan completes). Each invocation announces the computed position before acting ("FEAT-006 is at ui-designed; invoking feature-implementation").