Designs, audits, and iteratively validates framework, platform, language, protocol, or runtime architectures by combining explicit requirements, mature theory, external-system research, executable prototypes, dogfooding, and cross-artifact reconciliation. Use when creating or redesigning an architecture, writing architecture specifications or ADRs, auditing an existing architecture against abstraction/completeness/orthogonality/extensibility, or planning a design for production implementation.
Update STATE.md — the lightweight cross-session "daily report" of project progress. Rewrite (never append) the current milestone/phase, what this session completed or changed, pitfalls worth reusing, the recommended next issues/tasks, and the filtered-and-inherited backlog of unfinished cross-session items. Use at the end of a working session, when wrapping up, or when invoked as /state.
Drive the Godot game engine from the command line with `gda`, an agent-first CLI with structured JSON output. Use when building, editing, or inspecting a Godot project — create/edit scenes, nodes, GDScript, resources, shaders, themes; run static analysis; export builds (all headless, no editor) — or to control a running game live (runtime scene tree, input simulation, screenshots, performance, runtime logs/errors) via the gda daemon. Use when the user mentions gda, Godot automation, headless Godot, or asks an agent to make/modify a Godot game. Always pass `--json` and read the single result object; run `gda --help` or `gda schema` to discover the full command surface.
Orchestrates parallel development by fanning out independent feature slices to subagents in isolated git worktrees, then merging them serially under an orchestrating agent — covers dependency decomposition, wave sizing, dispatch prompts, merge-conflict hazards, and the integration-test gate. Use when planning to parallelize implementation across multiple subagents/worktrees, split a task for concurrent agents, fan out feature slices, or merge several feature branches back together; or invoked as /subagent-worktree-parallel.
Formulate precise, standard-compliant Git commit messages based on the conventional commits specification. Use when you are ready to execute `git commit`.
Check and repair consistency between GitHub issues and domain docs (CONTEXT.md, docs/adr/) after a requirement or technical decision changes — mechanical cross-reference integrity plus conversation-driven semantic staleness. Use when a decision or requirement was changed or discussed in the current session, when issues/docs may have drifted out of sync, when the user says "reconcile" / "sync issues and docs" / "check cross-references", or when invoked as /reconcile.