Fix preset-constitution-not-installed: use PresetResolver in constitution setup

Apply the remediation from the bug assessment on issue #3272.

Changes:
1. Modify ensure_constitution_from_template (init.py) to resolve the
   constitution-template through the preset priority stack via
   PresetResolver, instead of hardcoding the core template path. This
   ensures a preset's replacement constitution-template is used when
   seeding .specify/memory/constitution.md.

2. Reorder init flow: move ensure_constitution_from_template to after
   the preset installation block so that 'specify init --preset' seeds
   the memory file from the already-resolved template stack, not from
   the generic template that existed before the preset arrived.

3. Add _maybe_reseed_constitution to PresetManager (presets/__init__.py):
   a post-install hook that re-seeds .specify/memory/constitution.md
   from the preset's constitution-template during 'specify preset add'
   on an existing project, but only when the memory file still contains
   generic placeholder tokens ([PROJECT_NAME] or [PRINCIPLE_1_NAME]).
   Legitimately authored constitutions (no placeholder tokens) are never
   overwritten.

4. Add regression tests covering both code paths (TestConstitutionReseedOnPresetInstall
   and TestEnsureConstitutionFromTemplate in tests/test_presets.py).

Refs #3272

Assisted-by: GitHub Copilot (model: claude-sonnet-4.6, autonomous)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/specify_cli/commands/init.py

@@ -33,11 +33,12 @@ def _stdin_is_interactive() -> bool:
 def ensure_constitution_from_template(
     project_path: Path, tracker: StepTracker | None = None
 ) -> None:
-    """Copy constitution template to memory if it doesn't exist."""
+    """Copy constitution template to memory if it doesn't exist.
+
+    Resolves the template through the preset priority stack so that a preset's
+    replacement constitution-template is used instead of the generic core file.
+    """
     memory_constitution = project_path / ".specify" / "memory" / "constitution.md"
-    template_constitution = (
-        project_path / ".specify" / "templates" / "constitution-template.md"
-    )
 
     if memory_constitution.exists():
         if tracker:
@@ -45,6 +46,21 @@ def ensure_constitution_from_template(
             tracker.skip("constitution", "existing file preserved")
         return
 
+    # Resolve through the preset priority stack so preset replacements are honoured.
+    template_constitution: Path | None = None
+    try:
+        from ..presets import PresetResolver as _PresetResolver
+        template_constitution = _PresetResolver(project_path).resolve(
+            "constitution-template", "template"
+        )
+    except Exception:
+        template_constitution = None
+
+    if template_constitution is None:
+        template_constitution = (
+            project_path / ".specify" / "templates" / "constitution-template.md"
+        )
+
     if not template_constitution.exists():
         if tracker:
             tracker.add("constitution", "Constitution setup")
@@ -447,8 +463,6 @@ def register(app: typer.Typer) -> None:
                     "shared-infra", f"scripts ({selected_script}) + templates"
                 )
 
-                ensure_constitution_from_template(project_path, tracker=tracker)
-
                 try:
                     bundled_wf = _locate_bundled_workflow("speckit")
                     if bundled_wf:
@@ -576,6 +590,8 @@ def register(app: typer.Typer) -> None:
                             continuing="Continuing without the optional preset.",
                         )
 
+                ensure_constitution_from_template(project_path, tracker=tracker)
+
                 tracker.complete("final", "project ready")
             except (typer.Exit, SystemExit):
                 raise

src/specify_cli/presets/__init__.py

@@ -1615,8 +1615,56 @@ class PresetManager:
                     stacklevel=2,
                 )
 
+        # Re-seed constitution memory if the preset provides a replacement
+        # constitution-template and the existing memory file is still a generic placeholder.
+        self._maybe_reseed_constitution(manifest)
+
         return manifest
 
+    def _maybe_reseed_constitution(self, manifest: "PresetManifest") -> None:
+        """Re-seed .specify/memory/constitution.md from a preset's constitution-template.
+
+        Only re-seeds when:
+        1. The preset provides a ``constitution-template`` template entry.
+        2. The memory file exists and still contains generic placeholder tokens
+           (``[PROJECT_NAME]`` or ``[PRINCIPLE_1_NAME]``), meaning it has not
+           been legitimately authored yet.
+
+        This handles ``specify preset add`` on an existing project so the
+        preset's ratified constitution lands in memory without requiring
+        ``ensure_constitution_from_template`` to run again.
+        """
+        has_constitution_template = any(
+            t.get("type") == "template" and t.get("name") == "constitution-template"
+            for t in manifest.templates
+        )
+        if not has_constitution_template:
+            return
+
+        memory_constitution = self.project_root / ".specify" / "memory" / "constitution.md"
+        if not memory_constitution.exists():
+            # Will be seeded by ensure_constitution_from_template later; nothing to do here.
+            return
+
+        try:
+            content = memory_constitution.read_text(encoding="utf-8")
+        except OSError:
+            return
+
+        # Skip re-seed if the file has been legitimately authored (no placeholder tokens).
+        if "[PROJECT_NAME]" not in content and "[PRINCIPLE_1_NAME]" not in content:
+            return
+
+        resolver = PresetResolver(self.project_root)
+        resolved = resolver.resolve("constitution-template", "template")
+        if resolved is None or not resolved.exists():
+            return
+
+        try:
+            shutil.copy2(resolved, memory_constitution)
+        except OSError:
+            pass  # best-effort; don't fail preset installation for this
+
     def install_from_zip(
         self,
         zip_path: Path,

tests/test_presets.py

@@ -6149,3 +6149,188 @@ def test_preset_wrapper_resolves_ghes_asset_when_host_configured(tmp_path, monke
     )
     assert resolved == "https://ghes.example/api/v3/repos/o/r/releases/assets/9"
     assert captured == ["https://ghes.example/api/v3/repos/o/r/releases/tags/v2"]
+
+
+# =============================================================================
+# Tests for preset constitution re-seed (issue #3272)
+# =============================================================================
+
+
+class TestConstitutionReseedOnPresetInstall:
+    """Tests for _maybe_reseed_constitution and the post-install re-seed hook.
+
+    Verifies that install_from_directory re-seeds .specify/memory/constitution.md
+    from the preset's constitution-template when the memory file still contains
+    generic placeholder tokens, and does NOT overwrite legitimately authored ones.
+    """
+
+    def test_install_reseeds_generic_constitution_memory(self, project_dir):
+        """install_from_directory re-seeds memory/constitution.md when it still
+        contains the generic [PROJECT_NAME] placeholder and the preset provides a
+        constitution-template replacement."""
+        memory_dir = project_dir / ".specify" / "memory"
+        memory_dir.mkdir(parents=True, exist_ok=True)
+        memory_constitution = memory_dir / "constitution.md"
+        memory_constitution.write_text(
+            "# [PROJECT_NAME] Constitution\n\n## Core Principles\n\n"
+            "### [PRINCIPLE_1_NAME]\n[PRINCIPLE_1_DESCRIPTION]\n"
+        )
+
+        manager = PresetManager(project_dir)
+        install_self_test_preset(manager)
+
+        result = memory_constitution.read_text()
+        assert "preset:self-test" in result, "Expected preset's constitution content after re-seed"
+        assert "[PROJECT_NAME]" not in result
+
+    def test_install_reseeds_on_principle_placeholder(self, project_dir):
+        """Re-seeds when [PRINCIPLE_1_NAME] is present even if [PROJECT_NAME] is absent."""
+        memory_dir = project_dir / ".specify" / "memory"
+        memory_dir.mkdir(parents=True, exist_ok=True)
+        memory_constitution = memory_dir / "constitution.md"
+        memory_constitution.write_text(
+            "# My Company Constitution\n\n### [PRINCIPLE_1_NAME]\n[PRINCIPLE_1_DESCRIPTION]\n"
+        )
+
+        manager = PresetManager(project_dir)
+        install_self_test_preset(manager)
+
+        result = memory_constitution.read_text()
+        assert "preset:self-test" in result
+
+    def test_install_does_not_overwrite_authored_constitution(self, project_dir):
+        """install_from_directory must NOT overwrite a legitimately authored
+        constitution (one that no longer contains placeholder tokens)."""
+        authored_content = "# Acme Corp Constitution\n\n## Values\n\n1. Build great things.\n"
+
+        memory_dir = project_dir / ".specify" / "memory"
+        memory_dir.mkdir(parents=True, exist_ok=True)
+        memory_constitution = memory_dir / "constitution.md"
+        memory_constitution.write_text(authored_content)
+
+        manager = PresetManager(project_dir)
+        install_self_test_preset(manager)
+
+        assert memory_constitution.read_text() == authored_content, (
+            "install_from_directory must not overwrite an authored constitution"
+        )
+
+    def test_install_skips_reseed_when_no_constitution_template(self, project_dir, temp_dir):
+        """install_from_directory does not touch memory/constitution.md when the
+        preset provides no constitution-template entry."""
+        pack_data = {
+            "schema_version": "1.0",
+            "preset": {
+                "id": "no-constitution",
+                "name": "No Constitution Preset",
+                "version": "1.0.0",
+                "description": "A preset without a constitution-template override",
+                "author": "Test",
+                "license": "MIT",
+            },
+            "requires": {"speckit_version": ">=0.1.0"},
+            "provides": {
+                "templates": [
+                    {
+                        "type": "template",
+                        "name": "spec-template",
+                        "file": "templates/spec-template.md",
+                        "replaces": "spec-template",
+                    }
+                ]
+            },
+        }
+        pack_dir = temp_dir / "no-constitution"
+        pack_dir.mkdir()
+        (pack_dir / "preset.yml").write_text(yaml.dump(pack_data))
+        (pack_dir / "templates").mkdir()
+        (pack_dir / "templates" / "spec-template.md").write_text("# Custom Spec\n")
+
+        placeholder_content = "# [PROJECT_NAME] Constitution\n"
+        memory_dir = project_dir / ".specify" / "memory"
+        memory_dir.mkdir(parents=True, exist_ok=True)
+        memory_constitution = memory_dir / "constitution.md"
+        memory_constitution.write_text(placeholder_content)
+
+        manager = PresetManager(project_dir)
+        manager.install_from_directory(pack_dir, "0.1.5")
+
+        assert memory_constitution.read_text() == placeholder_content, (
+            "Memory constitution must be unchanged when preset has no constitution-template"
+        )
+
+    def test_install_skips_reseed_when_memory_absent(self, project_dir):
+        """install_from_directory must not create memory/constitution.md — that
+        responsibility belongs to ensure_constitution_from_template."""
+        manager = PresetManager(project_dir)
+        install_self_test_preset(manager)
+
+        memory_constitution = project_dir / ".specify" / "memory" / "constitution.md"
+        assert not memory_constitution.exists(), (
+            "install_from_directory must not create memory/constitution.md"
+        )
+
+
+class TestEnsureConstitutionFromTemplate:
+    """Tests for ensure_constitution_from_template using the preset resolver.
+
+    Verifies that the function seeds .specify/memory/constitution.md from the
+    highest-priority resolved constitution-template, picking up preset overrides
+    instead of always copying the generic core file.
+    """
+
+    def test_uses_preset_constitution_when_available(self, project_dir):
+        """ensure_constitution_from_template seeds from the preset's constitution-template
+        rather than the generic core file when a replacement preset is installed."""
+        from specify_cli.commands.init import ensure_constitution_from_template
+
+        manager = PresetManager(project_dir)
+        install_self_test_preset(manager)
+
+        # Provide a core template with generic content so we can confirm the
+        # function chose the preset's version over the core one.
+        core_tpl = project_dir / ".specify" / "templates" / "constitution-template.md"
+        core_tpl.write_text("# [PROJECT_NAME] Constitution\n\n[PRINCIPLE_1_NAME]\n")
+
+        ensure_constitution_from_template(project_dir)
+
+        memory_constitution = project_dir / ".specify" / "memory" / "constitution.md"
+        assert memory_constitution.exists()
+        content = memory_constitution.read_text()
+        assert "preset:self-test" in content, (
+            "Expected preset's constitution, got core template"
+        )
+        assert "[PROJECT_NAME]" not in content
+
+    def test_falls_back_to_core_template_without_preset(self, project_dir):
+        """ensure_constitution_from_template falls back to the core template when
+        no preset overrides constitution-template."""
+        from specify_cli.commands.init import ensure_constitution_from_template
+
+        core_tpl = project_dir / ".specify" / "templates" / "constitution-template.md"
+        core_tpl.write_text("# [PROJECT_NAME] Constitution\n# Core template marker\n")
+
+        ensure_constitution_from_template(project_dir)
+
+        memory_constitution = project_dir / ".specify" / "memory" / "constitution.md"
+        assert memory_constitution.exists()
+        assert "Core template marker" in memory_constitution.read_text()
+
+    def test_skips_when_memory_already_exists(self, project_dir):
+        """ensure_constitution_from_template is a no-op when memory/constitution.md
+        already exists, even if a preset replacement is available."""
+        from specify_cli.commands.init import ensure_constitution_from_template
+
+        memory_dir = project_dir / ".specify" / "memory"
+        memory_dir.mkdir(parents=True, exist_ok=True)
+        existing = memory_dir / "constitution.md"
+        existing.write_text("# Existing authored constitution\n")
+
+        manager = PresetManager(project_dir)
+        install_self_test_preset(manager)
+
+        ensure_constitution_from_template(project_dir)
+
+        assert existing.read_text() == "# Existing authored constitution\n", (
+            "ensure_constitution_from_template must not overwrite existing memory file"
+        )