diff --git a/presets/catalog.json b/presets/catalog.json
index 39bacb4157..6fc1f53e4e 100644
--- a/presets/catalog.json
+++ b/presets/catalog.json
@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-08-04T00:00:00Z",
+  "updated_at": "2026-09-10T00:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/presets/catalog.json",
   "presets": {
     "lean": {
@@ -48,6 +48,28 @@
         "templates",
         "compatibility"
       ]
+    },
+    "clarify-spec-gate": {
+      "name": "Clarify spec-stage gate",
+      "id": "clarify-spec-gate",
+      "version": "1.0.0",
+      "description": "Opt-in: wrap /speckit.clarify so spec-taxonomy items stay in the spec stage. Defer only implementation method, tech-stack comparison, or task breakdown.",
+      "author": "github",
+      "repository": "https://github.com/github/spec-kit",
+      "license": "MIT",
+      "bundled": true,
+      "requires": {
+        "speckit_version": ">=0.14.4"
+      },
+      "provides": {
+        "commands": 1,
+        "templates": 0
+      },
+      "tags": [
+        "clarify",
+        "spec",
+        "methodology"
+      ]
     }
   }
 }
diff --git a/presets/clarify-spec-gate/README.md b/presets/clarify-spec-gate/README.md
new file mode 100644
index 0000000000..14a7bde5ac
--- /dev/null
+++ b/presets/clarify-spec-gate/README.md
@@ -0,0 +1,28 @@
+# Clarify spec-stage gate
+
+Opt-in wrap of `/speckit.clarify`. Core already lists the spec taxonomy. This preset adds a stage gate so agents do not dump NFRs, acceptance criteria, edge cases, and similar items into Plan.
+
+Install it if you want that enforcement. Leave it off if core `/speckit.clarify` is enough.
+
+## What it does
+
+It wraps `speckit.clarify` with `{CORE_TEMPLATE}`, so core command updates still land. On top of that it:
+
+- Treats a taxonomy hit as a spec-stage question
+- Defers only implementation method, tech-stack comparison, or task breakdown
+- Pauses when more than 60% of unresolved items would be deferred
+- Adds a MUST-NOT on spec-taxonomy deferral
+
+## Installation
+
+```bash
+specify preset add clarify-spec-gate
+```
+
+## Development
+
+```bash
+specify preset add --dev ./presets/clarify-spec-gate
+specify preset resolve speckit.clarify
+specify preset remove clarify-spec-gate
+```
diff --git a/presets/clarify-spec-gate/commands/speckit.clarify.md b/presets/clarify-spec-gate/commands/speckit.clarify.md
new file mode 100644
index 0000000000..ff9105d258
--- /dev/null
+++ b/presets/clarify-spec-gate/commands/speckit.clarify.md
@@ -0,0 +1,25 @@
+---
+description: Identify underspecified areas in the current feature spec, keeping spec-taxonomy items in this stage.
+strategy: wrap
+---
+
+## Spec-vs-plan stage gate
+
+This preset tightens deferral. Apply it while you scan the spec (the taxonomy lives in the core command below).
+
+For every unchecked checklist item and every Partial/Missing taxonomy category, classify before considering deferral:
+
+1. Match the item against the spec-oriented taxonomy in the core command.
+2. A hit on any taxonomy category is a question candidate for this stage. Do not defer NFRs, acceptance/DoD testability, edge cases, UX empty states, domain constraints, or external-dependency failure modes.
+3. Defer to planning only when the item is specifically about implementation method, tech-stack comparison, or task breakdown.
+4. Mixed items (spec decision plus plan detail): split them and handle the spec part now.
+
+If more than 60% of unresolved items would be marked Defer, pause, report the ratio, and re-check each against the taxonomy before continuing.
+
+Do not use a vague "better deferred to planning" catch-all.
+
+{CORE_TEMPLATE}
+
+## Spec-taxonomy MUST-NOT
+
+MUST NOT defer spec-taxonomy items to Plan. Concurrent-user volume, NFR quantification, acceptance-criteria testability, empty-state UX, and external-dependency failure modes are spec questions. How you implement pagination can wait. Whether the API paginates cannot.
diff --git a/presets/clarify-spec-gate/preset.yml b/presets/clarify-spec-gate/preset.yml
new file mode 100644
index 0000000000..0d50dba2c5
--- /dev/null
+++ b/presets/clarify-spec-gate/preset.yml
@@ -0,0 +1,26 @@
+schema_version: "1.0"
+
+preset:
+  id: "clarify-spec-gate"
+  name: "Clarify spec-stage gate"
+  version: "1.0.0"
+  description: "Opt-in: wrap /speckit.clarify so spec-taxonomy items stay in the spec stage. Defer only implementation method, tech-stack comparison, or task breakdown."
+  author: "github"
+  repository: "https://github.com/github/spec-kit"
+  license: "MIT"
+
+requires:
+  speckit_version: ">=0.14.4"
+
+provides:
+  templates:
+    - type: "command"
+      name: "speckit.clarify"
+      file: "commands/speckit.clarify.md"
+      description: "Wrap /speckit.clarify with a spec-vs-plan stage gate and defer-ratio audit"
+      strategy: "wrap"
+
+tags:
+  - "clarify"
+  - "spec"
+  - "methodology"
diff --git a/pyproject.toml b/pyproject.toml
index ee1dc4ab31..042b3c24e3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,6 +50,7 @@ packages = ["src/specify_cli"]
 # Bundled presets (installable via `specify preset add <name>` or `specify init --preset <name>`)
 "presets/lean" = "specify_cli/core_pack/presets/lean"
 "presets/constitution-sync" = "specify_cli/core_pack/presets/constitution-sync"
+"presets/clarify-spec-gate" = "specify_cli/core_pack/presets/clarify-spec-gate"
 # Community bundle catalog snapshot (used for offline discovery)
 "bundles/catalog.community.json" = "specify_cli/core_pack/bundles/catalog.community.json"
 
diff --git a/tests/contract/test_wheel_bundled_presets.py b/tests/contract/test_wheel_bundled_presets.py
index 29faff5d59..28ceeb260c 100644
--- a/tests/contract/test_wheel_bundled_presets.py
+++ b/tests/contract/test_wheel_bundled_presets.py
@@ -51,3 +51,10 @@ def test_constitution_sync_is_bundled_and_shipped():
     assert _force_include()["presets/constitution-sync"] == (
         "specify_cli/core_pack/presets/constitution-sync"
     )
+
+
+def test_clarify_spec_gate_is_bundled_and_shipped():
+    assert "clarify-spec-gate" in _bundled_preset_ids()
+    assert _force_include()["presets/clarify-spec-gate"] == (
+        "specify_cli/core_pack/presets/clarify-spec-gate"
+    )
diff --git a/tests/test_presets.py b/tests/test_presets.py
index 17aef20dce..ac802bb535 100644
--- a/tests/test_presets.py
+++ b/tests/test_presets.py
@@ -14730,3 +14730,69 @@ def test_resolved_content_embeds_core_and_sync_pass(self, project_dir):
         assert "## Constitution Template Sync" in content
         assert "supersedes the \"Scope Guard\" above" in content
         assert "plan-template.md" in content
+
+
+class TestClarifySpecGatePreset:
+    """Bundled opt-in wrap of ``/speckit.clarify`` (#1717).
+
+    Core already lists the spec taxonomy. This preset adds the stage-gate
+    procedure, defer-ratio audit, and MUST-NOT block so teams can opt in
+    without imposing that methodology on every install.
+    """
+
+    PRESET_DIR = Path(__file__).parent.parent / "presets" / "clarify-spec-gate"
+
+    def test_manifest_provides_wrap_of_clarify(self):
+        manifest = yaml.safe_load((self.PRESET_DIR / "preset.yml").read_text())
+        assert manifest["preset"]["id"] == "clarify-spec-gate"
+        entries = manifest["provides"]["templates"]
+        assert len(entries) == 1
+        entry = entries[0]
+        assert entry["type"] == "command"
+        assert entry["name"] == "speckit.clarify"
+        assert entry["strategy"] == "wrap"
+
+    def test_wrapper_uses_core_template_and_stage_gate(self):
+        text = (self.PRESET_DIR / "commands" / "speckit.clarify.md").read_text()
+        assert text.startswith("---\n")
+        _, frontmatter_block, body = text.split("---", 2)
+        frontmatter = yaml.safe_load(frontmatter_block)
+        assert frontmatter["strategy"] == "wrap"
+        assert "{CORE_TEMPLATE}" in body
+        assert "strategy: wrap" not in body
+        assert "Spec-vs-plan stage gate" in body
+        assert "60%" in body
+        assert "MUST NOT defer spec-taxonomy items to Plan" in body
+
+    def test_catalog_lists_bundled_preset(self):
+        manifest = yaml.safe_load((self.PRESET_DIR / "preset.yml").read_text())
+        catalog = json.loads((self.PRESET_DIR.parent / "catalog.json").read_text())
+        entry = catalog["presets"]["clarify-spec-gate"]
+        assert entry["bundled"] is True
+        assert entry["version"] == manifest["preset"]["version"]
+        assert entry["provides"]["commands"] == 1
+        assert entry["provides"]["templates"] == 0
+
+    def test_wrap_composes_over_core_clarify(self, project_dir):
+        manager = PresetManager(project_dir)
+        manager.install_from_directory(self.PRESET_DIR, "0.15.0")
+
+        resolver = PresetResolver(project_dir)
+        layers = resolver.collect_all_layers("speckit.clarify", "command")
+        assert len(layers) >= 2, "expected preset wrap layer plus a core base"
+        assert layers[0]["strategy"] == "wrap"
+        assert any("clarify-spec-gate" in str(layer["path"]) for layer in layers)
+        assert layers[-1]["source"] == "core (bundled)"
+
+    def test_resolved_content_embeds_core_and_gate(self, project_dir):
+        manager = PresetManager(project_dir)
+        manager.install_from_directory(self.PRESET_DIR, "0.15.0")
+
+        resolver = PresetResolver(project_dir)
+        content = resolver.resolve_content("speckit.clarify", "command")
+        assert content is not None
+        assert "{CORE_TEMPLATE}" not in content
+        assert "## Outline" in content
+        assert "Functional Scope & Behavior" in content
+        assert "## Spec-vs-plan stage gate" in content
+        assert "MUST NOT defer spec-taxonomy items to Plan" in content