diff --git a/CHANGELOG.md b/CHANGELOG.md
index c19e5245..3cffa914 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,29 @@ All notable changes to the SIN-Code unified binary will be documented in this fi
 
 ## [Unreleased] - 2026-06-16
 
+### Added — Shop-Center skill integration (issue #142 fusion)
+- **`KnownSkills()` registry extended** with the three shop skills
+  (issue #142 acceptance criterion #2 — installable via
+  `sin-code skill install <name>`):
+  - `shop-cj-dropshipping` → `cj-dropshipping-skill`
+  - `shop-stripe`          → `SIN-Stripe-Bundle`
+  - `shop-tiktok`          → `SIN-eCommerce-Scraper-Bundle`
+- **Bundled `SKILL.md` files** (cj-dropshipping, stripe, tiktok)
+  already carry `lifecycle: external` + `sources:` frontmatter
+  (added by PR #218 / issue #139). The `sources:` field points
+  to the canonical external repos so the operator can discover
+  the upstream implementation directly from the bundled skill.
+- **New test** `TestKnownSkillsHasShopEntries` in
+  `cmd/sin-code/internal/skillmgr/manager_test.go` asserts the
+  three entries are present with the correct repo mapping.
+- **Validation passes** — `validate_skill.py --all-bundled
+  --strict` reports `0 failed` for the 34 skills (the 3 shop
+  skills were migrated by PR #218).
+- **Long-term fusion strategy** documented in the issue body:
+  phase 1 (external canonical) → phase 2 (bundled doc, done) →
+  phase 3 (native subcommand) → phase 4 (deprecate upstream).
+  Phase 3 is deferred until the shop domain matures.
+
 ### Added — `sin-code grill` (issue #141 fusion, native implementation)
 - **New package** `cmd/sin-code/internal/grill/` with 4 source
   files (`types.go`, `catalog.go`, `manager.go`, `grill_test.go`)
diff --git a/cmd/sin-code/internal/skillmgr/manager.go b/cmd/sin-code/internal/skillmgr/manager.go
index 74f83432..ac7bca71 100644
--- a/cmd/sin-code/internal/skillmgr/manager.go
+++ b/cmd/sin-code/internal/skillmgr/manager.go
@@ -51,6 +51,15 @@ func KnownSkills() map[string]string {
 		"browser":       "SIN-Browser-Tools",
 		"simone":        "Simone-MCP",
 		"symfonylens":   "SIN-Code-Symfony-Lens",
+		// Shop / commerce (issue #142 fusion). The bundled skills
+		// document the canonical implementation; the source repos
+		// listed below are the install targets for
+		// `sin-code skill install <name>`. The skill name and
+		// repo are 1:1 unless a single repo covers multiple
+		// bundled skills (see skillmgr.InstallBatch).
+		"shop-cj-dropshipping": "cj-dropshipping-skill",
+		"shop-stripe":          "SIN-Stripe-Bundle",
+		"shop-tiktok":          "SIN-eCommerce-Scraper-Bundle",
 	}
 }
 
diff --git a/cmd/sin-code/internal/skillmgr/manager_test.go b/cmd/sin-code/internal/skillmgr/manager_test.go
index 6ba931e8..892eedb5 100644
--- a/cmd/sin-code/internal/skillmgr/manager_test.go
+++ b/cmd/sin-code/internal/skillmgr/manager_test.go
@@ -21,6 +21,27 @@ func TestKnownSkillsCoversRegistry(t *testing.T) {
 	}
 }
 
+func TestKnownSkillsHasShopEntries(t *testing.T) {
+	// Issue #142 fusion: the three shop skills (CJ Dropshipping,
+	// Stripe, TikTok Shop) are in KnownSkills so `sin-code skill
+	// install <name>` works. The mapping is shortname -> repo.
+	ks := KnownSkills()
+	for name, want := range map[string]string{
+		"shop-cj-dropshipping": "cj-dropshipping-skill",
+		"shop-stripe":          "SIN-Stripe-Bundle",
+		"shop-tiktok":          "SIN-eCommerce-Scraper-Bundle",
+	} {
+		got, ok := ks[name]
+		if !ok {
+			t.Errorf("expected %q in KnownSkills (issue #142)", name)
+			continue
+		}
+		if got != want {
+			t.Errorf("KnownSkills[%q] = %q, want %q", name, got, want)
+		}
+	}
+}
+
 func TestInstallUnknownSkillFails(t *testing.T) {
 	_, err := Install(context.Background(), "no-such-skill-xyz")
 	if err == nil {