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strix/core/paths.py

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+"""Run directory path helpers."""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+
+RUNS_DIR_NAME = "strix_runs"
+RUNTIME_STATE_DIR_NAME = ".state"
+RUN_RECORD_FILENAME = "run.json"
+
+
+def run_dir_for(run_name: str, *, cwd: Path | None = None) -> Path:
+    base = cwd or Path.cwd()
+    return base / RUNS_DIR_NAME / run_name
+
+
+def runtime_state_dir(run_dir: Path) -> Path:
+    return run_dir / RUNTIME_STATE_DIR_NAME
+
+
+def run_record_path(run_dir: Path) -> Path:
+    return run_dir / RUN_RECORD_FILENAME