diff --git a/.gitmodules b/.gitmodules
index 6c93223..cd9a7d4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -29,3 +29,15 @@
 [submodule "plugins/bar"]
 	path = plugins/bar
 	url = https://github.com/bitty-terminal/bar.git
+[submodule "plugins/composer"]
+	path = plugins/composer
+	url = https://github.com/bitty-terminal/composer.git
+[submodule "plugins/search"]
+	path = plugins/search
+	url = https://github.com/bitty-terminal/search.git
+[submodule "plugins/history"]
+	path = plugins/history
+	url = https://github.com/bitty-terminal/history.git
+[submodule "plugins/copy-mode"]
+	path = plugins/copy-mode
+	url = https://github.com/bitty-terminal/copy-mode.git
diff --git a/generated/registry.json b/generated/registry.json
index d061e2d..5d97f32 100644
--- a/generated/registry.json
+++ b/generated/registry.json
@@ -1,6 +1,6 @@
 {
   "schema_version": 1,
-  "generated_at": "2026-10-04T16:30:39Z",
+  "generated_at": "2026-10-05T10:47:43Z",
   "plugins": [
     {
       "id": "bitty-featured.activity",
@@ -58,6 +58,56 @@
       },
       "manifest_hash": "sha256:947df76140c1d92cc4b880e2cbe421d5bbbdf2df80881d114aac26ddaa8a0929"
     },
+    {
+      "id": "bitty-terminal.composer",
+      "name": "Composer",
+      "kind": "plugin",
+      "repository": "https://github.com/bitty-terminal/composer",
+      "official": true,
+      "signature_status": "unsigned",
+      "author": "bitty-terminal",
+      "description": "Editable command-line policy over the public overlay, submit, and editor host APIs: modal buffer, chord routing, bounded paste, and external-editor round trip.",
+      "tags": [
+        "command-line",
+        "composer",
+        "editor",
+        "overlay"
+      ],
+      "categories": [
+        "productivity"
+      ],
+      "license": "MIT",
+      "compatibility": {
+        "bitty": ">=0.0.21,<0.1",
+        "sdk": "^0.1"
+      },
+      "manifest_hash": "sha256:cc2e382018ae383f7765adabcc4b61b26dd490461afcc74add65df2135045c15"
+    },
+    {
+      "id": "bitty-terminal.copy-mode",
+      "name": "Copy mode",
+      "kind": "plugin",
+      "repository": "https://github.com/bitty-terminal/copy-mode",
+      "official": true,
+      "signature_status": "unsigned",
+      "author": "bitty-terminal",
+      "description": "Modal visual selection over the public history snapshot API: bounded scoped transcript queries with typed denials, untrusted labels, anchor/cursor selection, and grant-gated yank.",
+      "tags": [
+        "clipboard",
+        "copy-mode",
+        "selection",
+        "transcript"
+      ],
+      "categories": [
+        "productivity"
+      ],
+      "license": "MIT",
+      "compatibility": {
+        "bitty": ">=0.5,<1.0",
+        "sdk": "^0.1"
+      },
+      "manifest_hash": "sha256:907813b7dab2da3548b97aef47f61a2f61e88b474c409476eaaa98d2c05b1e12"
+    },
     {
       "id": "bitty-terminal.file-manager",
       "name": "File Manager",
@@ -124,6 +174,31 @@
         "fetched_at": "2026-09-15T05:41:04Z"
       }
     },
+    {
+      "id": "bitty-terminal.history",
+      "name": "History",
+      "kind": "plugin",
+      "repository": "https://github.com/bitty-terminal/history",
+      "official": true,
+      "signature_status": "unsigned",
+      "author": "bitty-terminal",
+      "description": "Opt-in history reads over the public history-read host APIs: scoped bounded snapshot queries over transcript, commands, and own KV with redacted answers or typed denials.",
+      "tags": [
+        "commands",
+        "history",
+        "kv",
+        "transcript"
+      ],
+      "categories": [
+        "productivity"
+      ],
+      "license": "MIT",
+      "compatibility": {
+        "bitty": ">=0.5,<1.0",
+        "sdk": "^0.1"
+      },
+      "manifest_hash": "sha256:22d978eb84b15c383d7a9720525a9765e6e4eab69cf34576eded771ee17bdbed"
+    },
     {
       "id": "bitty-terminal.palette",
       "name": "Palette",
@@ -156,6 +231,31 @@
         "fetched_at": "2026-09-15T05:41:04Z"
       }
     },
+    {
+      "id": "bitty-terminal.search",
+      "name": "Search",
+      "kind": "plugin",
+      "repository": "https://github.com/bitty-terminal/search",
+      "official": true,
+      "signature_status": "unsigned",
+      "author": "bitty-terminal",
+      "description": "Scrollback search over the public history snapshot API: bounded scoped transcript queries with typed denials, untrusted labels, result navigation, and grant-gated export.",
+      "tags": [
+        "history",
+        "scrollback",
+        "search",
+        "transcript"
+      ],
+      "categories": [
+        "productivity"
+      ],
+      "license": "MIT",
+      "compatibility": {
+        "bitty": ">=0.5,<1.0",
+        "sdk": "^0.1"
+      },
+      "manifest_hash": "sha256:51a57d855dede4012c3e07a2e791a0c2e2a5e193f1efd78aca5feddc1dba5129"
+    },
     {
       "id": "bitty-terminal.wheel",
       "name": "Wheel",
diff --git a/plugins/composer b/plugins/composer
new file mode 160000
index 0000000..2762e34
--- /dev/null
+++ b/plugins/composer
@@ -0,0 +1 @@
+Subproject commit 2762e340920545a96e534f5cd4c35dd84011b3a4
diff --git a/plugins/copy-mode b/plugins/copy-mode
new file mode 160000
index 0000000..edeae30
--- /dev/null
+++ b/plugins/copy-mode
@@ -0,0 +1 @@
+Subproject commit edeae30e628b545912cad176e571fe2028c01fb1
diff --git a/plugins/history b/plugins/history
new file mode 160000
index 0000000..c839e97
--- /dev/null
+++ b/plugins/history
@@ -0,0 +1 @@
+Subproject commit c839e97fa49a5e9e4d3f51033516f7eddb22ae5e
diff --git a/plugins/search b/plugins/search
new file mode 160000
index 0000000..a363188
--- /dev/null
+++ b/plugins/search
@@ -0,0 +1 @@
+Subproject commit a3631882238159f2fbce2f3832e497535bb45371
diff --git a/registry/official/composer.toml b/registry/official/composer.toml
new file mode 100644
index 0000000..30ffcb9
--- /dev/null
+++ b/registry/official/composer.toml
@@ -0,0 +1,26 @@
+# Official registry entry: Composer.
+#
+# Hand-maintained identity data only. Derived metadata (version, stars, dates,
+# downloads) is intentionally absent; `just registry-sync` mirrors the plugin's
+# bitty-plugin.toml into the optional `metadata` object of the generated index.
+#
+# Integrity (Phase 1, advisory): `manifest_hash` is the sha256 digest (H-A: raw
+# bytes) of the owning repository's `bitty-plugin.toml` at the pinned submodule
+# revision recorded by `git ls-tree HEAD plugins/composer`. This is a digest
+# over fetched transport bytes (H-A), not semantic canonical hashing (H-B).
+# Refresh it when the pin moves (see README "Registry model" refresh procedure).
+
+id = "bitty-terminal.composer"
+name = "Composer"
+repository = "https://github.com/bitty-terminal/composer"
+kind = "plugin"
+author = "bitty-terminal"
+description = "Editable command-line policy over the public overlay, submit, and editor host APIs: modal buffer, chord routing, bounded paste, and external-editor round trip."
+tags = ["composer", "command-line", "overlay", "editor"]
+categories = ["productivity"]
+license = "MIT"
+manifest_hash = "sha256:cc2e382018ae383f7765adabcc4b61b26dd490461afcc74add65df2135045c15"
+
+[compatibility]
+bitty = ">=0.0.21,<0.1"
+sdk = "^0.1"
diff --git a/registry/official/copy-mode.toml b/registry/official/copy-mode.toml
new file mode 100644
index 0000000..c838606
--- /dev/null
+++ b/registry/official/copy-mode.toml
@@ -0,0 +1,26 @@
+# Official registry entry: Copy mode.
+#
+# Hand-maintained identity data only. Derived metadata (version, stars, dates,
+# downloads) is intentionally absent; `just registry-sync` mirrors the plugin's
+# bitty-plugin.toml into the optional `metadata` object of the generated index.
+#
+# Integrity (Phase 1, advisory): `manifest_hash` is the sha256 digest (H-A: raw
+# bytes) of the owning repository's `bitty-plugin.toml` at the pinned submodule
+# revision recorded by `git ls-tree HEAD plugins/copy-mode`. This is a digest
+# over fetched transport bytes (H-A), not semantic canonical hashing (H-B).
+# Refresh it when the pin moves (see README "Registry model" refresh procedure).
+
+id = "bitty-terminal.copy-mode"
+name = "Copy mode"
+repository = "https://github.com/bitty-terminal/copy-mode"
+kind = "plugin"
+author = "bitty-terminal"
+description = "Modal visual selection over the public history snapshot API: bounded scoped transcript queries with typed denials, untrusted labels, anchor/cursor selection, and grant-gated yank."
+tags = ["copy-mode", "selection", "clipboard", "transcript"]
+categories = ["productivity"]
+license = "MIT"
+manifest_hash = "sha256:907813b7dab2da3548b97aef47f61a2f61e88b474c409476eaaa98d2c05b1e12"
+
+[compatibility]
+bitty = ">=0.5,<1.0"
+sdk = "^0.1"
diff --git a/registry/official/history.toml b/registry/official/history.toml
new file mode 100644
index 0000000..4da3689
--- /dev/null
+++ b/registry/official/history.toml
@@ -0,0 +1,26 @@
+# Official registry entry: History.
+#
+# Hand-maintained identity data only. Derived metadata (version, stars, dates,
+# downloads) is intentionally absent; `just registry-sync` mirrors the plugin's
+# bitty-plugin.toml into the optional `metadata` object of the generated index.
+#
+# Integrity (Phase 1, advisory): `manifest_hash` is the sha256 digest (H-A: raw
+# bytes) of the owning repository's `bitty-plugin.toml` at the pinned submodule
+# revision recorded by `git ls-tree HEAD plugins/history`. This is a digest
+# over fetched transport bytes (H-A), not semantic canonical hashing (H-B).
+# Refresh it when the pin moves (see README "Registry model" refresh procedure).
+
+id = "bitty-terminal.history"
+name = "History"
+repository = "https://github.com/bitty-terminal/history"
+kind = "plugin"
+author = "bitty-terminal"
+description = "Opt-in history reads over the public history-read host APIs: scoped bounded snapshot queries over transcript, commands, and own KV with redacted answers or typed denials."
+tags = ["history", "transcript", "commands", "kv"]
+categories = ["productivity"]
+license = "MIT"
+manifest_hash = "sha256:22d978eb84b15c383d7a9720525a9765e6e4eab69cf34576eded771ee17bdbed"
+
+[compatibility]
+bitty = ">=0.5,<1.0"
+sdk = "^0.1"
diff --git a/registry/official/search.toml b/registry/official/search.toml
new file mode 100644
index 0000000..e00d80f
--- /dev/null
+++ b/registry/official/search.toml
@@ -0,0 +1,26 @@
+# Official registry entry: Search.
+#
+# Hand-maintained identity data only. Derived metadata (version, stars, dates,
+# downloads) is intentionally absent; `just registry-sync` mirrors the plugin's
+# bitty-plugin.toml into the optional `metadata` object of the generated index.
+#
+# Integrity (Phase 1, advisory): `manifest_hash` is the sha256 digest (H-A: raw
+# bytes) of the owning repository's `bitty-plugin.toml` at the pinned submodule
+# revision recorded by `git ls-tree HEAD plugins/search`. This is a digest
+# over fetched transport bytes (H-A), not semantic canonical hashing (H-B).
+# Refresh it when the pin moves (see README "Registry model" refresh procedure).
+
+id = "bitty-terminal.search"
+name = "Search"
+repository = "https://github.com/bitty-terminal/search"
+kind = "plugin"
+author = "bitty-terminal"
+description = "Scrollback search over the public history snapshot API: bounded scoped transcript queries with typed denials, untrusted labels, result navigation, and grant-gated export."
+tags = ["search", "scrollback", "transcript", "history"]
+categories = ["productivity"]
+license = "MIT"
+manifest_hash = "sha256:51a57d855dede4012c3e07a2e791a0c2e2a5e193f1efd78aca5feddc1dba5129"
+
+[compatibility]
+bitty = ">=0.5,<1.0"
+sdk = "^0.1"