Several client-facing and integration docs describe stale API behavior or examples. The issues are docs-only, but they affect high-copy-paste areas: client task handling, MCP Apps routing, OpenAPI request construction, and auth provider setup examples.

Concrete drift found in the docs audit:

• Client task docs omit the input_required status and understate how task.wait() behaves when a task leaves working.
• Client docs should consistently describe CallToolResult.data, raw MCP results via call_tool_mcp, resource version reads, cancellation notifications, and resource-updated notifications.
• MCP Apps architecture docs describe the older _meta.fastmcp.app routing path; current app tools use deterministic hashed backend names and per-tool Prefab renderer resources.
• OpenAPI docs say empty strings are omitted from query params; current request construction skips None, while empty strings remain explicit empty query values.
• Scalekit/auth integration examples use ambiguous placeholders or deprecated patterns; the current provider setup uses base_url, environment_url, resource_id, optional required_scopes, and a JWT verifier configured from those values.

Expected: client, apps, OpenAPI, and auth integration docs should match current public APIs and request-routing behavior so copied examples run as written.

Verified against current code and tests:

• fastmcp_slim/fastmcp/client/client.py
• fastmcp_slim/fastmcp/client/messages.py
• fastmcp_slim/fastmcp/client/tasks.py
• fastmcp_slim/fastmcp/client/mixins/resources.py
• fastmcp_slim/fastmcp/apps/app.py
• fastmcp_slim/fastmcp/server/providers/prefab_synthesis.py
• fastmcp_slim/fastmcp/server/server.py
• fastmcp_slim/fastmcp/utilities/openapi/director.py
• fastmcp_slim/fastmcp/server/auth/providers/scalekit.py
• tests/client/*
• tests/server/tasks/*
• tests/utilities/openapi/test_director.py
• tests/server/auth/providers/test_scalekit.py

A focused local validation pass for the candidate docs updates passed: docs examples, broken links, prek, and client/task/OpenAPI/auth-provider tests.