Update claude-api skill: auth, cloud providers, Managed Agents fixes, token counting (#1276)

* Sync claude-api skill with latest upstream updates

- Add token-counting.md and SKILL.md trigger description update
- Add auth guidance: env credential resolution, ant auth login, OAuth/WIF doc links, 401 causes
- Add mid-conversation system messages (beta) to prompt-caching, agent-design, SKILL.md, Python/TS READMEs
- Add cache pre-warming (max_tokens: 0) section to prompt-caching
- Add Managed Agents pre-flight viability check to onboarding and overview
- Add Bedrock model-ID section to model-migration; add Bedrock row to live-sources
- Add /claude-api migrate subcommand row and migrate-entry callout
- Fix MA networking config: limited type with allow_package_managers/allow_mcp_servers
- Bump MA create-operations rate limit to 300 RPM
- Fix MA SDK drift: sessions.events.stream(), event.name, typed event arrays
- Add SDK coverage: stop_details, error .type, C# tool runner + MA support, Go model constants, Java 2.34.0, client config, response helpers, auto-pagination, advisor tool
- Move Sonnet 4 / Opus 4 to deprecated in models.md

* Add Anthropic CLI and Claude Platform on AWS docs to claude-api skill

- Add shared/anthropic-cli.md: install, auth profiles, OAuth scopes, command
  structure, version-controlled Managed Agents resources, credential traps
- Add shared/claude-platform-on-aws.md: AnthropicAWS clients, SigV4 auth,
  workspace_id, regions, feature availability
- Restore cross-references to both files throughout SKILL.md and the
  managed-agents docs (previously rewritten to live-sources.md pointers)
- Restore Claude Platform on AWS provider taxonomy in SKILL.md, the
  migration-guide section, and live-sources rows

skills/claude-api/java/claude-api.md

@@ -10,14 +10,14 @@ Maven:
 <dependency>
     <groupId>com.anthropic</groupId>
     <artifactId>anthropic-java</artifactId>
-    <version>2.17.0</version>
+    <version>2.34.0</version>
 </dependency>
 ```
 
 Gradle:
 
 ```groovy
-implementation("com.anthropic:anthropic-java:2.17.0")
+implementation("com.anthropic:anthropic-java:2.34.0")
 ```
 
 ## Client Initialization
@@ -359,7 +359,7 @@ import com.anthropic.models.messages.CodeExecutionTool20260120;
 .addTool(CodeExecutionTool20260120.builder().build())
 ```
 
-Also available: `WebFetchTool20260209`, `MemoryTool20250818`, `ToolSearchToolBm25_20251119`.
+Also available: `WebFetchTool20260209`, `MemoryTool20250818`, `ToolSearchToolBm25_20251119`. For the advisor tool, use `BetaAdvisorTool20260301` in the beta namespace.
 
 ### Beta namespace (MCP, compaction)
 
@@ -408,6 +408,35 @@ for (ContentBlock block : response.content()) {
 
 ---
 
+## Stop Details
+
+When `stopReason()` is `"refusal"`, the response includes structured `stopDetails()`:
+
+```java
+response.stopDetails().ifPresent(details -> {
+    System.out.println("Category: " + details.category());
+    System.out.println("Explanation: " + details.explanation());
+});
+```
+
+---
+
+## Error Type
+
+`AnthropicServiceException` exposes `.errorType()` returning `Optional<ErrorType>` for programmatic error classification:
+
+```java
+try {
+    client.messages().create(params);
+} catch (AnthropicServiceException e) {
+    e.errorType().ifPresent(type ->
+        System.out.println("Error type: " + type)  // RATE_LIMIT_ERROR, OVERLOADED_ERROR, etc.
+    );
+}
+```
+
+---
+
 ## Files API (Beta)
 
 Under `client.beta().files()`. File references in messages need the beta message types (non-beta `DocumentBlockParam.Source` has no file-ID variant).