chore: rename to fault tolerance (#3834)

also fix links

Author: sydney-runkle

src/docs.json

@@ -1208,7 +1208,7 @@
                       "pages": [
                         "oss/python/langgraph/persistence",
                         "oss/python/langgraph/durable-execution",
-                        "oss/python/langgraph/timeout-and-error-handling",
+                        "oss/python/langgraph/fault-tolerance",
                         "oss/python/langgraph/streaming",
                         "oss/python/langgraph/interrupts",
                         "oss/python/langgraph/use-time-travel",
@@ -1991,6 +1991,14 @@
       "source": "/oss/javascript/deepagents/long-term-memory",
       "destination": "/oss/javascript/deepagents/memory"
     },
+    {
+      "source": "/oss/python/langgraph/timeout-and-error-handling",
+      "destination": "/oss/python/langgraph/fault-tolerance"
+    },
+    {
+      "source": "/oss/javascript/langgraph/timeout-and-error-handling",
+      "destination": "/oss/javascript/langgraph/fault-tolerance"
+    },
     {
       "source": "/docs",
       "destination": "/"

src/langsmith/sandbox-cli.mdx

@@ -26,7 +26,7 @@ Authenticate the CLI with your LangSmith API key:
 export LANGSMITH_API_KEY="<LANGSMITH_API_KEY>"
 ```
 
-If you use a [self-hosted](/langsmith/self-hosted) or [hybrid](/langmsith/hybrid) LangSmith deployment, also set the endpoint:
+If you use a [self-hosted](/langsmith/self-hosted) or [hybrid](/langsmith/hybrid) LangSmith deployment, also set the endpoint:
 
 ```bash
 export LANGSMITH_ENDPOINT="https://your-langsmith-instance.com"

src/oss/deepagents/deploy.mdx

@@ -236,7 +236,7 @@ Add these to your `.env` alongside your other credentials. The bundler validates
     Frontend deployment requires `deepagents-cli>=0.0.43`.
 </Note>
 
-Optionally enable `[frontend]` to ship a prebuilt React chat UI alongside your agent on the same deployment. The frontend is mounted at `/app` on your deployment URL; your LangGraph API stays at the root (`/threads`, `/runs`, `/assistants`). Every frontend uses one of three authentication providers — Clerk, Supabase, or anonymous (see [Authentication providers](#authentication-providers) below).
+Optionally enable `[frontend]` to ship a prebuilt React chat UI alongside your agent on the same deployment. The frontend is mounted at `/app` on your deployment URL; your LangGraph API stays at the root (`/threads`, `/runs`, `/assistants`). Every frontend uses one of three authentication providers — Clerk, Supabase, or anonymous (see [`[auth]`](#auth) below).
 
 <ResponseField name="enabled" type="boolean" default="false">
     If `true`, bundle the default chat UI into the deployment.

…langgraph/timeout-and-error-handling.mdx src/oss/langgraph/fault-tolerance.mdxsrc/oss/langgraph/timeout-and-error-handling.mdx renamed to src/oss/langgraph/fault-tolerance.mdx src/oss/langgraph/timeout-and-error-handling.mdx renamed to src/oss/langgraph/fault-tolerance.mdx

@@ -304,7 +304,7 @@ Different errors need different handling strategies:
 
     :::python
 
-    Combine with `timeout=` to cap each attempt. See [Fault tolerance](/oss/langgraph/timeout-and-error-handling) for the full lifecycle.
+    Combine with `timeout=` to cap each attempt. See [Fault tolerance](/oss/langgraph/fault-tolerance) for the full lifecycle.
 
     ```python
     from langgraph.types import RetryPolicy
@@ -478,7 +478,7 @@ Different errors need different handling strategies:
 
     :::python
 
-    See [Fault tolerance](/oss/langgraph/timeout-and-error-handling#error-handling) for the full pattern.
+    See [Fault tolerance](/oss/langgraph/fault-tolerance#error-handling) for the full pattern.
 
     <Note>
     `error_handler` requires `langgraph>=1.2`, currently in alpha.

src/oss/langgraph/thinking-in-langgraph.mdx

@@ -731,7 +731,7 @@ await main.invoke({ any_input: "foobar" }, config);
 :::
 
 :::python
-`@task` also supports `timeout=` for capping how long an attempt may run. See [Fault tolerance](/oss/langgraph/timeout-and-error-handling#functional-api) for `TimeoutPolicy` usage with `@task` and `@entrypoint`.
+`@task` also supports `timeout=` for capping how long an attempt may run. See [Fault tolerance](/oss/langgraph/fault-tolerance#functional-api) for `TimeoutPolicy` usage with `@task` and `@entrypoint`.
 
 <Note>
 `@task` and `@entrypoint` timeout support requires `langgraph>=1.2`, currently in alpha.

src/oss/langgraph/use-functional-api.mdx

@@ -1586,7 +1586,7 @@ builder.add_node(
 )
 ```
 
-See [Fault tolerance](/oss/langgraph/timeout-and-error-handling#timeouts) for the full timeout lifecycle, idle-timeout refresh sources, and `runtime.heartbeat()`.
+See [Fault tolerance](/oss/langgraph/fault-tolerance#timeouts) for the full timeout lifecycle, idle-timeout refresh sources, and `runtime.heartbeat()`.
 
 ## Handle node errors
 
@@ -1614,7 +1614,7 @@ builder.add_node(
 )
 ```
 
-See [Fault tolerance](/oss/langgraph/timeout-and-error-handling#error-handling) for compensation patterns and `Command` routing.
+See [Fault tolerance](/oss/langgraph/fault-tolerance#error-handling) for compensation patterns and `Command` routing.
 
 :::