fix: preserve constitution.md during reinitialization (#1541) (#1553)

Moves constitution template from memory/ to templates/ to prevent
overwrites when spec-kit is reinitialized with a different AI agent.

Changes:
- Move memory/constitution.md to templates/constitution-template.md
- Update CLI to copy template to memory/ only on first initialization
- Update constitution command to reference correct paths with .specify/ prefix
- Preserve existing constitution.md when reinitializing project

The CLI now checks if .specify/memory/constitution.md exists:
- If it exists: preserve it (no overwrite)
- If it doesn't exist: copy from .specify/templates/constitution-template.md

This allows users to customize their constitution without losing changes
when adding support for additional AI agents or reinitializing.

Fixes #1541

Co-authored-by: jjoung1128 <jinwoong.joung@gmail.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

src/specify_cli/__init__.py

@@ -942,6 +942,41 @@ def ensure_executable_scripts(project_path: Path, tracker: StepTracker | None =
             for f in failures:
                 console.print(f"  - {f}")
 
+def ensure_constitution_from_template(project_path: Path, tracker: StepTracker | None = None) -> None:
+    """Copy constitution template to memory if it doesn't exist (preserves existing constitution on reinitialization)."""
+    memory_constitution = project_path / ".specify" / "memory" / "constitution.md"
+    template_constitution = project_path / ".specify" / "templates" / "constitution-template.md"
+
+    # If constitution already exists in memory, preserve it
+    if memory_constitution.exists():
+        if tracker:
+            tracker.add("constitution", "Constitution setup")
+            tracker.skip("constitution", "existing file preserved")
+        return
+
+    # If template doesn't exist, something went wrong with extraction
+    if not template_constitution.exists():
+        if tracker:
+            tracker.add("constitution", "Constitution setup")
+            tracker.error("constitution", "template not found")
+        return
+
+    # Copy template to memory directory
+    try:
+        memory_constitution.parent.mkdir(parents=True, exist_ok=True)
+        shutil.copy2(template_constitution, memory_constitution)
+        if tracker:
+            tracker.add("constitution", "Constitution setup")
+            tracker.complete("constitution", "copied from template")
+        else:
+            console.print(f"[cyan]Initialized constitution from template[/cyan]")
+    except Exception as e:
+        if tracker:
+            tracker.add("constitution", "Constitution setup")
+            tracker.error("constitution", str(e))
+        else:
+            console.print(f"[yellow]Warning: Could not initialize constitution: {e}[/yellow]")
+
 @app.command()
 def init(
     project_name: str = typer.Argument(None, help="Name for your new project directory (optional if using --here, or use '.' for current directory)"),
@@ -1108,6 +1143,7 @@ def init(
         ("zip-list", "Archive contents"),
         ("extracted-summary", "Extraction summary"),
         ("chmod", "Ensure scripts executable"),
+        ("constitution", "Constitution setup"),
         ("cleanup", "Cleanup"),
         ("git", "Initialize git repository"),
         ("final", "Finalize")
@@ -1128,6 +1164,8 @@ def init(
 
             ensure_executable_scripts(project_path, tracker=tracker)
 
+            ensure_constitution_from_template(project_path, tracker=tracker)
+
             if not no_git:
                 tracker.start("git")
                 if is_git_repo(project_path):

templates/commands/constitution.md

@@ -16,11 +16,13 @@ You **MUST** consider the user input before proceeding (if not empty).
 
 ## Outline
 
-You are updating the project constitution at `/memory/constitution.md`. This file is a TEMPLATE containing placeholder tokens in square brackets (e.g. `[PROJECT_NAME]`, `[PRINCIPLE_1_NAME]`). Your job is to (a) collect/derive concrete values, (b) fill the template precisely, and (c) propagate any amendments across dependent artifacts.
+You are updating the project constitution at `.specify/memory/constitution.md`. This file is a TEMPLATE containing placeholder tokens in square brackets (e.g. `[PROJECT_NAME]`, `[PRINCIPLE_1_NAME]`). Your job is to (a) collect/derive concrete values, (b) fill the template precisely, and (c) propagate any amendments across dependent artifacts.
+
+**Note**: If `.specify/memory/constitution.md` does not exist yet, it should have been initialized from `.specify/templates/constitution-template.md` during project setup. If it's missing, copy the template first.
 
 Follow this execution flow:
 
-1. Load the existing constitution template at `/memory/constitution.md`.
+1. Load the existing constitution at `.specify/memory/constitution.md`.
    - Identify every placeholder token of the form `[ALL_CAPS_IDENTIFIER]`.
    **IMPORTANT**: The user might require less or more principles than the ones used in the template. If a number is specified, respect that - follow the general template. You will update the doc accordingly.
 
@@ -41,10 +43,10 @@ Follow this execution flow:
    - Ensure Governance section lists amendment procedure, versioning policy, and compliance review expectations.
 
 4. Consistency propagation checklist (convert prior checklist into active validations):
-   - Read `/templates/plan-template.md` and ensure any "Constitution Check" or rules align with updated principles.
+   - Read `.specify/templates/plan-template.md` and ensure any "Constitution Check" or rules align with updated principles.
-   - Read `/templates/spec-template.md` for scope/requirements alignment—update if constitution adds/removes mandatory sections or constraints.
+   - Read `.specify/templates/spec-template.md` for scope/requirements alignment—update if constitution adds/removes mandatory sections or constraints.
-   - Read `/templates/tasks-template.md` and ensure task categorization reflects new or removed principle-driven task types (e.g., observability, versioning, testing discipline).
+   - Read `.specify/templates/tasks-template.md` and ensure task categorization reflects new or removed principle-driven task types (e.g., observability, versioning, testing discipline).
-   - Read each command file in `/templates/commands/*.md` (including this one) to verify no outdated references (agent-specific names like CLAUDE only) remain when generic guidance is required.
+   - Read each command file in `.specify/templates/commands/*.md` (including this one) to verify no outdated references (agent-specific names like CLAUDE only) remain when generic guidance is required.
    - Read any runtime guidance docs (e.g., `README.md`, `docs/quickstart.md`, or agent-specific guidance files if present). Update references to principles changed.
 
 5. Produce a Sync Impact Report (prepend as an HTML comment at top of the constitution file after update):
@@ -61,7 +63,7 @@ Follow this execution flow:
    - Dates ISO format YYYY-MM-DD.
    - Principles are declarative, testable, and free of vague language ("should" → replace with MUST/SHOULD rationale where appropriate).
 
-7. Write the completed constitution back to `/memory/constitution.md` (overwrite).
+7. Write the completed constitution back to `.specify/memory/constitution.md` (overwrite).
 
 8. Output a final summary to the user with:
    - New version and bump rationale.
@@ -79,4 +81,4 @@ If the user supplies partial updates (e.g., only one principle revision), still
 
 If critical info missing (e.g., ratification date truly unknown), insert `TODO(<FIELD_NAME>): explanation` and include in the Sync Impact Report under deferred items.
 
-Do not create a new template; always operate on the existing `/memory/constitution.md` file.
+Do not create a new template; always operate on the existing `.specify/memory/constitution.md` file.