diff --git a/.changeset/preamble-stream-event.md b/.changeset/preamble-stream-event.md
deleted file mode 100644
index bdbb04f0..00000000
--- a/.changeset/preamble-stream-event.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-"@smooai/smooth-operator": patch
----
-
-Add an optional fast-model **preamble** to streaming turns to cover the reasoning model's time-to-first-token. When the server is configured with `SMOOTH_AGENT_PREAMBLE_MODEL` (e.g. `groq-gpt-oss-20b`), a small fast model runs IN PARALLEL with the main turn and streams ONE short present-tense "what I'm about to do" sentence over a new `stream_preamble` wire event — an ephemeral status line the real answer replaces. It's best-effort (any error/slowness is swallowed on its own task) and guarded: it's dropped if the real answer has already begun streaming, so it can never block or corrupt a turn. Unset ⇒ no extra call and byte-for-byte unchanged behavior. Adds `stream-preamble.schema.json` to the SEP spec and `StreamPreamble` to the TypeScript SDK union.
diff --git a/examples/web-chat/CHANGELOG.md b/examples/web-chat/CHANGELOG.md
index 19979df5..1da1e642 100644
--- a/examples/web-chat/CHANGELOG.md
+++ b/examples/web-chat/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @smooai/smooth-operator-web-chat-example
 
+## 0.0.10
+
+### Patch Changes
+
+- Updated dependencies [57c7a02]
+  - @smooai/smooth-operator@1.22.17
+
 ## 0.0.9
 
 ### Patch Changes
diff --git a/examples/web-chat/package.json b/examples/web-chat/package.json
index 4669ab5d..b2a3f6b6 100644
--- a/examples/web-chat/package.json
+++ b/examples/web-chat/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@smooai/smooth-operator-web-chat-example",
-    "version": "0.0.9",
+    "version": "0.0.10",
     "private": true,
     "description": "A smooth-web-like Vite + React chat client that drives a running smooth-operator server over its WebSocket protocol — token streaming, inline tool-call/result blocks, a conversation sidebar, and oldest-first history, all on top of the published @smooai/smooth-operator SDK.",
     "type": "module",
diff --git a/go/version.go b/go/version.go
index 16acb57d..f916472c 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 = "1.22.16"
+const Version = "1.22.17"
diff --git a/python/pyproject.toml b/python/pyproject.toml
index acbce998..6d9430c2 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "smooai-smooth-operator"
-version = "1.22.16"
+version = "1.22.17"
 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 a14dbdba..be2e6797 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -3974,7 +3974,7 @@ checksum = "8ed6a63f02c8539c91a8685a86f4099661ba3da017932f6ebbea6de3f0fa7c90"
 
 [[package]]
 name = "smooai-smooth-operator"
-version = "1.22.16"
+version = "1.22.17"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4006,7 +4006,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-backplane-nats"
-version = "1.22.16"
+version = "1.22.17"
 dependencies = [
  "anyhow",
  "async-nats",
@@ -4022,7 +4022,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-backplane-redis"
-version = "1.22.16"
+version = "1.22.17"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4038,7 +4038,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-dynamodb"
-version = "1.22.16"
+version = "1.22.17"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4059,7 +4059,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-memory"
-version = "1.22.16"
+version = "1.22.17"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4072,7 +4072,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-postgres"
-version = "1.22.16"
+version = "1.22.17"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4163,7 +4163,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-ingestion"
-version = "1.22.16"
+version = "1.22.17"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4210,7 +4210,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-server"
-version = "1.22.16"
+version = "1.22.17"
 dependencies = [
  "anyhow",
  "async-trait",
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index d51f79e4..3c142d81 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -33,7 +33,7 @@ smooai-smooth-operator-core = "0.16.2"
 # 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 = "1.22.16" }
+smooth-operator = { package = "smooai-smooth-operator", path = "smooth-operator", version = "1.22.17" }
 
 async-trait = "0.1"
 anyhow = "1"
diff --git a/rust/adapters/backplane-nats/Cargo.toml b/rust/adapters/backplane-nats/Cargo.toml
index 6107ed32..7a8c8611 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 = "1.22.16"
+version = "1.22.17"
 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 b612b4d5..f330ea97 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 = "1.22.16"
+version = "1.22.17"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/rust/adapters/dynamodb/Cargo.toml b/rust/adapters/dynamodb/Cargo.toml
index 559fbbe9..01802f01 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 = "1.22.16"
+version = "1.22.17"
 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 = "1.22.16" }
+smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.22.17" }
 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 c3803756..e3b46656 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 = "1.22.16"
+version = "1.22.17"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/rust/adapters/postgres/Cargo.toml b/rust/adapters/postgres/Cargo.toml
index 1bf1a594..cf21e029 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 = "1.22.16"
+version = "1.22.17"
 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 = "1.22.16" }
+smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.22.17" }
 async-trait = { workspace = true }
 anyhow = { workspace = true }
 chrono = { workspace = true }
diff --git a/rust/ingestion/Cargo.toml b/rust/ingestion/Cargo.toml
index c003034b..386aaa4f 100644
--- a/rust/ingestion/Cargo.toml
+++ b/rust/ingestion/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator-ingestion"
-version = "1.22.16"
+version = "1.22.17"
 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 a33fd571..0cf51edb 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 = "1.22.16"
+version = "1.22.17"
 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 = "1.22.16" }
+smooai-smooth-operator-adapter-memory = { path = "../adapters/in-memory", version = "1.22.17" }
 # 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 = "1.22.16", optional = true }
-smooai-smooth-operator-adapter-dynamodb = { path = "../adapters/dynamodb", version = "1.22.16", optional = true }
+smooai-smooth-operator-adapter-postgres = { path = "../adapters/postgres", version = "1.22.17", optional = true }
+smooai-smooth-operator-adapter-dynamodb = { path = "../adapters/dynamodb", version = "1.22.17", 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 = "1.22.16", optional = true }
-smooai-smooth-operator-adapter-backplane-nats = { path = "../adapters/backplane-nats", version = "1.22.16", optional = true }
+smooai-smooth-operator-adapter-backplane-redis = { path = "../adapters/backplane-redis", version = "1.22.17", optional = true }
+smooai-smooth-operator-adapter-backplane-nats = { path = "../adapters/backplane-nats", version = "1.22.17", optional = true }
 # Admin API surfaces indexing-run status via the ingestion crate's IndexingStore.
-smooai-smooth-operator-ingestion = { path = "../ingestion", version = "1.22.16" }
+smooai-smooth-operator-ingestion = { path = "../ingestion", version = "1.22.17" }
 
 async-trait = { workspace = true }
 anyhow = { workspace = true }
diff --git a/rust/smooth-operator/Cargo.toml b/rust/smooth-operator/Cargo.toml
index f2610cdb..75ca8437 100644
--- a/rust/smooth-operator/Cargo.toml
+++ b/rust/smooth-operator/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator"
-version = "1.22.16"
+version = "1.22.17"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/typescript/CHANGELOG.md b/typescript/CHANGELOG.md
index ce60bb1e..12f96c49 100644
--- a/typescript/CHANGELOG.md
+++ b/typescript/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @smooai/smooth-operator
 
+## 1.22.17
+
+### Patch Changes
+
+- 57c7a02: Add an optional fast-model **preamble** to streaming turns to cover the reasoning model's time-to-first-token. When the server is configured with `SMOOTH_AGENT_PREAMBLE_MODEL` (e.g. `groq-gpt-oss-20b`), a small fast model runs IN PARALLEL with the main turn and streams ONE short present-tense "what I'm about to do" sentence over a new `stream_preamble` wire event — an ephemeral status line the real answer replaces. It's best-effort (any error/slowness is swallowed on its own task) and guarded: it's dropped if the real answer has already begun streaming, so it can never block or corrupt a turn. Unset ⇒ no extra call and byte-for-byte unchanged behavior. Adds `stream-preamble.schema.json` to the SEP spec and `StreamPreamble` to the TypeScript SDK union.
+
 ## 1.22.16
 
 ### Patch Changes
diff --git a/typescript/package.json b/typescript/package.json
index b6dbf5b7..2365c775 100644
--- a/typescript/package.json
+++ b/typescript/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@smooai/smooth-operator",
-    "version": "1.22.16",
+    "version": "1.22.17",
     "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",