diff --git a/.changeset/sep-phase4-commands-sdk.md b/.changeset/sep-phase4-commands-sdk.md
deleted file mode 100644
index 4f3c2a8..0000000
--- a/.changeset/sep-phase4-commands-sdk.md
+++ /dev/null
@@ -1,12 +0,0 @@
----
-"@smooai/smooth-extension-sdk": minor
-"@smooai/smooth-operator": patch
----
-
-SEP Phase 4 (spec + SDK) — commands, flags, shortcuts, and session actions.
-
-**Spec.** New `command-complete.schema.json` (argument autocomplete). `session.schema.json` now carries the dispatch `context` on every params object (the wire form of the command-tier + epoch guard the host enforces) and adds `send_user_message` (`deliver_as` steer/follow_up/next_turn). `initialize.schema.json` gains a `flags` delivery map on the params and a `shortcuts` list (+ `ShortcutRegistration`) on the registrations. New conformance fixtures for command/complete, session send_user_message/append_entry, shortcuts, and flag delivery; new `$invalid` cases proving `context` is required on a session action and `value` on a completion. The reference `echo.mjs` registers a command + shortcut and answers command/execute + command/complete.
-
-**SDK.** `smooth.registerCommand` (with an optional `complete` completer), `registerFlag` (+ `smooth.getFlag`), and `registerShortcut`. Command handlers receive a `CommandContext` bound to their command-tier context, exposing `session.sendMessage` / `sendUserMessage` / `appendEntry`, `ui`, `hasUI`, and `args`. `createTestHost` gains `runCommand`, `completeCommand`, and a `session/*` service that enforces the same command-tier guard the engine does (event-tier → -32003), recording every session call for assertions. `runConformance` now replays command/execute + command/complete.
-
-**Demo.** `plan-mode` — the flagship extension that exercises phases 2–4 together: a `--plan` flag and a `/plan` command toggle plan mode; a `tool_call` intercept blocks write/edit/apply_patch/bash while it is on; each toggle pushes a `set_widget` render block and persists an LLM-invisible `appendEntry`, so the state survives a hot reload (the flag re-seeds it, the transcript keeps the history).
diff --git a/go/version.go b/go/version.go
index cebdf6d..c7feaf4 100644
--- a/go/version.go
+++ b/go/version.go
@@ -5,4 +5,4 @@ package e2e
 // language artifacts. The real Go "publish" is a git tag (go/v<Version>); this
 // constant is the anchor that scripts/sync-versions.mjs keeps in sync with the
 // canonical npm version on every changeset release.
-const Version = "1.11.3"
+const Version = "1.11.4"
diff --git a/python/pyproject.toml b/python/pyproject.toml
index b5d7015..30eacbb 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "smooai-smooth-operator"
-version = "1.11.3"
+version = "1.11.4"
 description = "Python protocol types and native async WebSocket client for the smooth-operator protocol. Generated from the language-neutral JSON Schemas in spec/."
 readme = "README.md"
 license = { text = "MIT" }
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 3b26f7a..b0acb15 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -3974,7 +3974,7 @@ checksum = "8ed6a63f02c8539c91a8685a86f4099661ba3da017932f6ebbea6de3f0fa7c90"
 
 [[package]]
 name = "smooai-smooth-operator"
-version = "1.11.3"
+version = "1.11.4"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4006,7 +4006,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-backplane-nats"
-version = "1.11.3"
+version = "1.11.4"
 dependencies = [
  "anyhow",
  "async-nats",
@@ -4022,7 +4022,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-backplane-redis"
-version = "1.11.3"
+version = "1.11.4"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4038,7 +4038,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-dynamodb"
-version = "1.11.3"
+version = "1.11.4"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4059,7 +4059,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-memory"
-version = "1.11.3"
+version = "1.11.4"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4072,7 +4072,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-postgres"
-version = "1.11.3"
+version = "1.11.4"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4158,7 +4158,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-ingestion"
-version = "1.11.3"
+version = "1.11.4"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4205,7 +4205,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-server"
-version = "1.11.3"
+version = "1.11.4"
 dependencies = [
  "anyhow",
  "async-trait",
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 3232121..142cbb8 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -29,7 +29,7 @@ smooai-smooth-operator-core = { path = "../../smooth-operator-core/rust/smooth-o
 # Intra-workspace dep on the reference lib carries its version so the adapters /
 # ingestion / server that depend on it are publishable (path = local dev,
 # version = the crates.io requirement).
-smooth-operator = { package = "smooai-smooth-operator", path = "smooth-operator", version = "1.11.3" }
+smooth-operator = { package = "smooai-smooth-operator", path = "smooth-operator", version = "1.11.4" }
 
 async-trait = "0.1"
 anyhow = "1"
diff --git a/rust/adapters/backplane-nats/Cargo.toml b/rust/adapters/backplane-nats/Cargo.toml
index 9b60fd0..9041d43 100644
--- a/rust/adapters/backplane-nats/Cargo.toml
+++ b/rust/adapters/backplane-nats/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator-adapter-backplane-nats"
-version = "1.11.3"
+version = "1.11.4"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/rust/adapters/backplane-redis/Cargo.toml b/rust/adapters/backplane-redis/Cargo.toml
index ef2ba58..3a1a32e 100644
--- a/rust/adapters/backplane-redis/Cargo.toml
+++ b/rust/adapters/backplane-redis/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator-adapter-backplane-redis"
-version = "1.11.3"
+version = "1.11.4"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/rust/adapters/dynamodb/Cargo.toml b/rust/adapters/dynamodb/Cargo.toml
index 6faea0e..2ccca82 100644
--- a/rust/adapters/dynamodb/Cargo.toml
+++ b/rust/adapters/dynamodb/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator-adapter-dynamodb"
-version = "1.11.3"
+version = "1.11.4"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
@@ -19,7 +19,7 @@ s3-vectors = ["dep:aws-sdk-s3vectors", "dep:aws-smithy-types"]
 smooth-operator = { workspace = true }
 smooai-smooth-operator-core = { workspace = true }
 # IndexingStore / IndexingRun for the persistent admin indexing-runs store.
-smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.11.3" }
+smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.11.4" }
 async-trait = { workspace = true }
 anyhow = { workspace = true }
 chrono = { workspace = true }
diff --git a/rust/adapters/in-memory/Cargo.toml b/rust/adapters/in-memory/Cargo.toml
index 6dcf586..5ba97b7 100644
--- a/rust/adapters/in-memory/Cargo.toml
+++ b/rust/adapters/in-memory/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator-adapter-memory"
-version = "1.11.3"
+version = "1.11.4"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/rust/adapters/postgres/Cargo.toml b/rust/adapters/postgres/Cargo.toml
index 79a75b9..3bf34b7 100644
--- a/rust/adapters/postgres/Cargo.toml
+++ b/rust/adapters/postgres/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator-adapter-postgres"
-version = "1.11.3"
+version = "1.11.4"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
@@ -15,7 +15,7 @@ smooth-operator = { workspace = true }
 # `postgres` feature pulls in PostgresCheckpointStore (sync r2d2 path).
 smooai-smooth-operator-core = { workspace = true, features = ["postgres"] }
 # IndexingStore / IndexingRun for the persistent admin indexing-runs store.
-smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.11.3" }
+smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.11.4" }
 async-trait = { workspace = true }
 anyhow = { workspace = true }
 chrono = { workspace = true }
diff --git a/rust/ingestion/Cargo.toml b/rust/ingestion/Cargo.toml
index b61a62e..f648d4d 100644
--- a/rust/ingestion/Cargo.toml
+++ b/rust/ingestion/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator-ingestion"
-version = "1.11.3"
+version = "1.11.4"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/rust/smooth-operator-server/Cargo.toml b/rust/smooth-operator-server/Cargo.toml
index bef3fc2..5ae059b 100644
--- a/rust/smooth-operator-server/Cargo.toml
+++ b/rust/smooth-operator-server/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator-server"
-version = "1.11.3"
+version = "1.11.4"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
@@ -35,22 +35,22 @@ smooth-operator = { workspace = true }
 smooai-smooth-operator-core = { workspace = true }
 # In-memory storage + backplane — ALWAYS included. The local-flavor default and
 # the lean (`--no-default-features`) build run entirely on these.
-smooai-smooth-operator-adapter-memory = { path = "../adapters/in-memory", version = "1.11.3" }
+smooai-smooth-operator-adapter-memory = { path = "../adapters/in-memory", version = "1.11.4" }
 # Persistent storage + admin-store backends, selected at runtime to match the
 # configured storage backend (Postgres / DynamoDB; default in-memory). Optional:
 # gated behind the `postgres` / `dynamodb` features so a lean local/embed build
 # can exclude tokio-postgres / the AWS SDK. The `postgres` crate also provides the
 # gateway-backed embedder/reranker, so the `postgres` feature additionally enables
 # the semantic-retrieval path in `embedder.rs` / `reranker.rs`.
-smooai-smooth-operator-adapter-postgres = { path = "../adapters/postgres", version = "1.11.3", optional = true }
-smooai-smooth-operator-adapter-dynamodb = { path = "../adapters/dynamodb", version = "1.11.3", optional = true }
+smooai-smooth-operator-adapter-postgres = { path = "../adapters/postgres", version = "1.11.4", optional = true }
+smooai-smooth-operator-adapter-dynamodb = { path = "../adapters/dynamodb", version = "1.11.4", optional = true }
 # Distributed Backplane backends for horizontal scale-out, selected at runtime
 # via SMOOTH_AGENT_BACKPLANE (default in-memory / single-process). Optional: gated
 # behind the `redis` / `nats` features so a lean build excludes their drivers.
-smooai-smooth-operator-adapter-backplane-redis = { path = "../adapters/backplane-redis", version = "1.11.3", optional = true }
-smooai-smooth-operator-adapter-backplane-nats = { path = "../adapters/backplane-nats", version = "1.11.3", optional = true }
+smooai-smooth-operator-adapter-backplane-redis = { path = "../adapters/backplane-redis", version = "1.11.4", optional = true }
+smooai-smooth-operator-adapter-backplane-nats = { path = "../adapters/backplane-nats", version = "1.11.4", optional = true }
 # Admin API surfaces indexing-run status via the ingestion crate's IndexingStore.
-smooai-smooth-operator-ingestion = { path = "../ingestion", version = "1.11.3" }
+smooai-smooth-operator-ingestion = { path = "../ingestion", version = "1.11.4" }
 
 async-trait = { workspace = true }
 anyhow = { workspace = true }
diff --git a/rust/smooth-operator/Cargo.toml b/rust/smooth-operator/Cargo.toml
index f84b70d..6729aeb 100644
--- a/rust/smooth-operator/Cargo.toml
+++ b/rust/smooth-operator/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator"
-version = "1.11.3"
+version = "1.11.4"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/typescript/CHANGELOG.md b/typescript/CHANGELOG.md
index e711066..9302bd1 100644
--- a/typescript/CHANGELOG.md
+++ b/typescript/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @smooai/smooth-operator
 
+## 1.11.4
+
+### Patch Changes
+
+- 0953584: SEP Phase 4 (spec + SDK) — commands, flags, shortcuts, and session actions.
+
+  **Spec.** New `command-complete.schema.json` (argument autocomplete). `session.schema.json` now carries the dispatch `context` on every params object (the wire form of the command-tier + epoch guard the host enforces) and adds `send_user_message` (`deliver_as` steer/follow_up/next_turn). `initialize.schema.json` gains a `flags` delivery map on the params and a `shortcuts` list (+ `ShortcutRegistration`) on the registrations. New conformance fixtures for command/complete, session send_user_message/append_entry, shortcuts, and flag delivery; new `$invalid` cases proving `context` is required on a session action and `value` on a completion. The reference `echo.mjs` registers a command + shortcut and answers command/execute + command/complete.
+
+  **SDK.** `smooth.registerCommand` (with an optional `complete` completer), `registerFlag` (+ `smooth.getFlag`), and `registerShortcut`. Command handlers receive a `CommandContext` bound to their command-tier context, exposing `session.sendMessage` / `sendUserMessage` / `appendEntry`, `ui`, `hasUI`, and `args`. `createTestHost` gains `runCommand`, `completeCommand`, and a `session/*` service that enforces the same command-tier guard the engine does (event-tier → -32003), recording every session call for assertions. `runConformance` now replays command/execute + command/complete.
+
+  **Demo.** `plan-mode` — the flagship extension that exercises phases 2–4 together: a `--plan` flag and a `/plan` command toggle plan mode; a `tool_call` intercept blocks write/edit/apply_patch/bash while it is on; each toggle pushes a `set_widget` render block and persists an LLM-invisible `appendEntry`, so the state survives a hot reload (the flag re-seeds it, the transcript keeps the history).
+
 ## 1.11.3
 
 ### Patch Changes
diff --git a/typescript/extension-sdk/CHANGELOG.md b/typescript/extension-sdk/CHANGELOG.md
index c48e244..dc7065f 100644
--- a/typescript/extension-sdk/CHANGELOG.md
+++ b/typescript/extension-sdk/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @smooai/smooth-extension-sdk
 
+## 0.5.0
+
+### Minor Changes
+
+- 0953584: SEP Phase 4 (spec + SDK) — commands, flags, shortcuts, and session actions.
+
+  **Spec.** New `command-complete.schema.json` (argument autocomplete). `session.schema.json` now carries the dispatch `context` on every params object (the wire form of the command-tier + epoch guard the host enforces) and adds `send_user_message` (`deliver_as` steer/follow_up/next_turn). `initialize.schema.json` gains a `flags` delivery map on the params and a `shortcuts` list (+ `ShortcutRegistration`) on the registrations. New conformance fixtures for command/complete, session send_user_message/append_entry, shortcuts, and flag delivery; new `$invalid` cases proving `context` is required on a session action and `value` on a completion. The reference `echo.mjs` registers a command + shortcut and answers command/execute + command/complete.
+
+  **SDK.** `smooth.registerCommand` (with an optional `complete` completer), `registerFlag` (+ `smooth.getFlag`), and `registerShortcut`. Command handlers receive a `CommandContext` bound to their command-tier context, exposing `session.sendMessage` / `sendUserMessage` / `appendEntry`, `ui`, `hasUI`, and `args`. `createTestHost` gains `runCommand`, `completeCommand`, and a `session/*` service that enforces the same command-tier guard the engine does (event-tier → -32003), recording every session call for assertions. `runConformance` now replays command/execute + command/complete.
+
+  **Demo.** `plan-mode` — the flagship extension that exercises phases 2–4 together: a `--plan` flag and a `/plan` command toggle plan mode; a `tool_call` intercept blocks write/edit/apply_patch/bash while it is on; each toggle pushes a `set_widget` render block and persists an LLM-invisible `appendEntry`, so the state survives a hot reload (the flag re-seeds it, the transcript keeps the history).
+
 ## 0.4.0
 
 ### Minor Changes
diff --git a/typescript/extension-sdk/package.json b/typescript/extension-sdk/package.json
index f1b52af..9562f9c 100644
--- a/typescript/extension-sdk/package.json
+++ b/typescript/extension-sdk/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@smooai/smooth-extension-sdk",
-    "version": "0.4.0",
+    "version": "0.5.0",
     "description": "TypeScript SDK for building Smooth Extension Protocol (SEP) extensions: `defineExtension`, `defineTool`, a stdio JSON-RPC transport, an in-process test host, and a conformance runner. Extensions are subprocesses speaking JSON-RPC 2.0 ndjson to any SEP host (smooth-operator-core and its polyglot servers).",
     "license": "MIT",
     "type": "module",
diff --git a/typescript/package.json b/typescript/package.json
index ec8f905..948a546 100644
--- a/typescript/package.json
+++ b/typescript/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@smooai/smooth-operator",
-    "version": "1.11.3",
+    "version": "1.11.4",
     "description": "TypeScript SDK for the smooth-operator WebSocket protocol: the native client (`.`), React bindings (`./react`), and the embeddable web-component chat widget (`./widget`). Generated from the language-neutral JSON Schemas in spec/.",
     "license": "MIT",
     "type": "module",