diff --git a/crates/fractal-chatgpt/Cargo.toml b/crates/fractal-chatgpt/Cargo.toml
index b1bb7db2d33..85efd3dc54a 100644
--- a/crates/fractal-chatgpt/Cargo.toml
+++ b/crates/fractal-chatgpt/Cargo.toml
@@ -20,6 +20,11 @@ tower = { version = "0.5", features = ["util"] }
 tempfile = "3"
 parking_lot = "0.12"
 
+[[bin]]
+name = "fractal-chatgpt"
+path = "src/main.rs"
+
+# Keep the existing Nix package buildable until its package-name cutover.
 [[bin]]
 name = "st-chatgpt"
 path = "src/main.rs"
diff --git a/docs/site/reference/mcp-server.md b/docs/site/reference/mcp-server.md
index 799f8095983..603978e46eb 100644
--- a/docs/site/reference/mcp-server.md
+++ b/docs/site/reference/mcp-server.md
@@ -8,7 +8,7 @@ order: 6
 
 The Fractal MCP server connects an MCP client to the daemon's paired-client gateway. It exposes a closed set of tools for alerts, missions, agents, conversations, and explicitly scoped writes. It does not expose daemon control or give an assistant person authority.
 
-The Rust package is `fractal-chatgpt`; its executable is `st-chatgpt`. The supported assistant principal is `assistant/chatgpt`, including when a generic MCP client uses the adapter. Pairing requires the configured owning person's explicit consent to disclose assistant reads to OpenAI. Do not use a person credential for this server.
+The Rust package is `fractal-chatgpt`; its binary is `fractal-chatgpt` (`st-chatgpt` kept as an alias binary). The supported assistant principal is `assistant/chatgpt`, including when a generic MCP client uses the adapter. Pairing requires the configured owning person's explicit consent to disclose assistant reads to OpenAI. Do not use a person credential for this server.
 
 The [external-assistant contract](https://github.com/compoundingtech/fractal/blob/main/docs/st3/external-assistants.md) defines the authority and wire behavior. Remote access is a restricted dogfood path, not an authenticated public service.
 
@@ -19,10 +19,10 @@ Install and configure [Fractal](../getting-started/install.md) first. The daemon
 Build the adapter from the repository root with Rust and the repository's build prerequisites:
 
 ```sh
-cargo build --release -p fractal-chatgpt --bin st-chatgpt
+cargo build --release -p fractal-chatgpt --bin fractal-chatgpt
 ```
 
-The binary is `target/release/st-chatgpt`. Alternatively, obtain it from the repository's Nix package:
+The binary is `target/release/fractal-chatgpt` (`st-chatgpt` kept as an alias binary). Alternatively, obtain the current Nix package:
 
 ```sh
 nix build github:compoundingtech/fractal#st-chatgpt
@@ -96,7 +96,7 @@ A generic MCP client configuration looks like this; adapt the outer configuratio
 {
   "mcpServers": {
     "fractal": {
-      "command": "/PATH/TO/st-chatgpt",
+      "command": "/PATH/TO/fractal-chatgpt",
       "args": [
         "--transport", "stdio",
         "--socket", "/PATH/TO/st3-client.sock",
@@ -147,7 +147,7 @@ The table summarizes the descriptions published by the adapter. A scope listed h
 | `fractal_conversation_read` | `read.assistant.conversation` | Read | Read one bounded revision-pinned conversation content range. |
 | `fractal_message_send` | `write.assistant.messages` | Write | Send one exact message to any existing agent; person recipients are refused. |
 
-The corresponding `st_*` tool names are hidden, deprecated aliases for cached clients and are removed in `fractal-chatgpt` 0.2.0. Refresh client tool discovery and use `fractal_*`; aliases do not grant additional authority. This deprecation concerns MCP tool names, not the `st-chatgpt` executable name.
+The corresponding `st_*` tool names are hidden, deprecated aliases for cached clients and are removed in `fractal-chatgpt` 0.2.0. Refresh client tool discovery and use `fractal_*`; aliases do not grant additional authority. This tool-name deprecation is separate from the `st-chatgpt` alias binary.
 
 ## Limits and grant lifecycle
 
diff --git a/release-notes/fractal-chatgpt-reader-rename.json b/release-notes/fractal-chatgpt-reader-rename.json
new file mode 100644
index 00000000000..7790b759521
--- /dev/null
+++ b/release-notes/fractal-chatgpt-reader-rename.json
@@ -0,0 +1,11 @@
+{
+  "version": 1,
+  "summary": "Add the fractal-chatgpt adapter binary and keep st-chatgpt as an alias binary",
+  "replay": {"status": "none", "detail": "No graph replay or data changes."},
+  "schema": {"status": "none", "detail": "No storage schema changes."},
+  "rules": {"status": "none", "detail": "No checkpoint or coordination rule changes."},
+  "compatibility": {"status": "changed", "detail": "The package builds binary fractal-chatgpt (st-chatgpt kept as an alias binary). Both targets compile the same source. Nix package names and lane inputs are unchanged."},
+  "downtime": {"status": "none", "detail": "No daemon restart or service interruption is required."},
+  "manual": {"status": "changed", "detail": "Source builds can select --bin fractal-chatgpt. Existing --bin st-chatgpt builds and the current Nix package continue to produce the alias binary."},
+  "recovery": {"status": "none", "detail": "No persistent data is changed. The alias binary continues to invoke the same adapter."}
+}