Updates

developer-guide/02-the-context-object.md

@@ -38,7 +38,8 @@ The following are set on `ctx` before the kernel starts (unless noted as overwri
 | **`requestBooterExit(code)`** | Ends the session from `/bin/exit` or equivalent |
 | **`applyUnlock` / `applyRegister` / `applyLogin` / `applyLogout` / `saveVault`** | Identity and vault operations used by **`login`**, **`logout`**, **`savevault`** |
 | **`shellAliases`** | Populated when the shell loads default or `~/.barerc` aliases |
-| **`runBinCommand(argv)`** | Runs a command with the **same** resolution rules as the interactive shell (used by **`time`** and similar) |
+| **`runBinCommand(argv)`** | Runs a command with the **same** resolution rules as the interactive shell (used by **`time`**, **`xargs`**, and similar) |
+| **`registerKernelShutdownHook(fn)`** | Register an async or sync function to run when the REPL session ends, **before** initd disposers (`clearInterval`, …). See [`bare-initd.js`](../packages/bare-os-booter/lib/bare-initd.js) |
 
 After [`createKernelReplSession`](../packages/bare-os-booter/lib/repl-session.js) returns:
 
@@ -55,7 +56,7 @@ When the shell runs an external command (or a pipeline stage), it may pass a **s
 | Field | When |
 | ----- | ---- |
 | **`shellStdin`** | String body for simulated stdin (pipelines and `<` redirection) |
-| **`exitCode`** | Utilities set `ctx.exitCode` for conditions (**`test`**, **`grep`**, …); the shell does not implement `&&`/`||` branching on it today |
+| **`exitCode`** | Utilities set `ctx.exitCode` for conditions (**`test`**, **`grep`**, …); the shell uses it for **`&&`**, **`||`**, and **`;`** lists (see [`shell.js`](../packages/bare-os-booter/lib/shell.js)) |
 
 Always use the `ctx` passed into **`run`**, not a global, so pipeline stdin works.