diff --git a/.claude/skills/brainstorming/SKILL.md b/.claude/skills/brainstorming/SKILL.md
new file mode 100644
index 0000000..62566f5
--- /dev/null
+++ b/.claude/skills/brainstorming/SKILL.md
@@ -0,0 +1,19 @@
+---
+name: brainstorming
+description: Enforce Socratic design refinement to plan before coding.
+---
+
+# Brainstorming
+
+Enforces Socratic design refinement. Use this skill to refine ideas and formulate a solid design before starting implementation.
+
+### Run Brainstorming
+```bash
+python3 scripts/design.py brainstorm \
+    --title "New Feature" \
+    --problem "The core problem we are trying to solve" \
+    --solution "The proposed solution" \
+    --edge-cases "Potential pitfalls" \
+    --alternatives "Alternatives considered and why rejected" \
+    --doc-type f
+```
diff --git a/docs/tasks/features/FEATURES-20260305-171241-FGU-implement-phase-1-planning-and-isolation-brainstorming.md b/docs/tasks/features/FEATURES-20260305-171241-FGU-implement-phase-1-planning-and-isolation-brainstorming.md
index 2b80e45..75b1eac 100644
--- a/docs/tasks/features/FEATURES-20260305-171241-FGU-implement-phase-1-planning-and-isolation-brainstorming.md
+++ b/docs/tasks/features/FEATURES-20260305-171241-FGU-implement-phase-1-planning-and-isolation-brainstorming.md
@@ -1,6 +1,6 @@
 ---
 id: FEATURES-20260305-171241-FGU
-status: pending
+status: completed
 title: Implement Phase 1 Planning and Isolation Brainstorming
 priority: medium
 created: 2026-03-05 17:12:41
diff --git a/scripts/design.py b/scripts/design.py
new file mode 100755
index 0000000..a7cd009
--- /dev/null
+++ b/scripts/design.py
@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+"""
+Brainstorming skill backing script.
+Prompts the user with questions to refine the design before coding.
+Generates a design document in docs/architecture/ or docs/features/.
+Creates an Epic task via scripts/tasks.py.
+"""
+
+import os
+import sys
+import argparse
+import re
+import os
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+from scripts.tasks import create_task
+
+DOCS_DIR = os.environ.get("TASKS_REPO_ROOT", "docs")
+FEATURES_DIR = os.path.join(DOCS_DIR, "features")
+ARCHITECTURE_DIR = os.path.join(DOCS_DIR, "architecture")
+
+def sanitize_slug(text):
+    slug = text.lower().replace(" ", "-")
+    return re.sub(r'[^a-z0-9-]', '', slug)
+
+def run_brainstorm(title, problem, solution, edge_cases, alternatives, doc_type):
+    print("Welcome to Brainstorming Mode. Refining your design...")
+    print("-" * 50)
+
+    if not title.strip():
+        print("Title is required. Exiting.")
+        sys.exit(1)
+
+    if doc_type.strip().lower() in ['a', 'architecture']:
+        target_dir = ARCHITECTURE_DIR
+        prefix = "ARCHITECTURE"
+    else:
+        target_dir = FEATURES_DIR
+        prefix = "FEATURE"
+
+    os.makedirs(target_dir, exist_ok=True)
+
+    slug = sanitize_slug(title)
+    timestamp = datetime.now().strftime("%Y%m%d-%H%M%S")
+    filename = f"{prefix}-{timestamp}-{slug}.md"
+    filepath = os.path.join(target_dir, filename)
+
+    content = f"""# {title}
+
+## Problem Statement
+{problem}
+
+## Proposed Solution
+{solution}
+
+## Edge Cases and Pitfalls
+{edge_cases}
+
+## Alternatives Considered
+{alternatives}
+"""
+
+    with open(filepath, "w") as f:
+        f.write(content)
+
+    print(f"\nDesign document created at: {filepath}")
+
+    print("\nCreating Epic task...")
+
+    create_task(
+        category="features",
+        title=title,
+        description=f"Epic for {title}. See design document at {filepath}.",
+        task_type="epic",
+        output_format="text"
+    )
+
+def main():
+    parser = argparse.ArgumentParser(description="Brainstorming and Design Tool")
+    subparsers = parser.add_subparsers(dest="command", help="Command to run")
+
+    brainstorm_parser = subparsers.add_parser("brainstorm", help="Start a brainstorming session via CLI arguments")
+    brainstorm_parser.add_argument("--title", required=True, help="The title of the feature or architectural change")
+    brainstorm_parser.add_argument("--problem", required=True, help="The core problem we are trying to solve")
+    brainstorm_parser.add_argument("--solution", required=True, help="The proposed solution")
+    brainstorm_parser.add_argument("--edge-cases", required=True, help="The edge cases or potential pitfalls")
+    brainstorm_parser.add_argument("--alternatives", required=True, help="Alternatives considered, and why they were rejected")
+    brainstorm_parser.add_argument("--doc-type", choices=['f', 'a', 'feature', 'architecture'], default='f', help="Is this a feature (f) or architecture (a) document?")
+
+    args = parser.parse_args()
+
+    if args.command == "brainstorm":
+        run_brainstorm(args.title, args.problem, args.solution, args.edge_cases, args.alternatives, args.doc_type)
+    else:
+        parser.print_help()
+
+if __name__ == "__main__":
+    main()