# Claude Code 2.1.290 By Steven Van · 2026-10-05 Plugin authors get richer permission-check data, while terminal users can attach to sessions using part of a name. Plugin hooks gain more context for tool calls and permission checks in [Claude Code]() 2.1.290. The [release]() also adds session-name matching and a way to deny pending sign-ins. ## Hook data and validation - A mod’s turn.step hook result now includes serverToolUses for tool calls the API ran itself through the advisor, with each call’s id, name, input, start and end. - Plugin tool.check events now include agentId, allowing hooks to distinguish a subagent’s permission check from the main session’s. - The question and verdict read by a mod’s tool.check hook now include ceiling, naming the approval an organization requires for a tool. - Plugin hook typings add ThemeKey and Color, so editors can list the theme colors a mod’s drawing can name. - claude plugin validate now lists each hook a mod registers at a gating site and whether it has a .catch. JSON output includes this under gatingHooks. ## Sign-in and session commands The Claude apps gateway’s sign-in approval page now has a Deny button. It ends the pending sign-in, stopping the waiting terminal within seconds. The claude attach and claude logs commands also accept part of a session name in place of its id. ## Managed Agents setup The `/claude-api managed-agents-onboard` command can set up a Managed Agents pattern from a URL or build a Console quickstart template, such as `deep-researcher`, with the `ant` CLI. Claude Code also warns when a managed settings file links to a file outside its folder. ![Claude Code]() Claude Code Anthropic's agentic coding tool — Claude in your terminal, IDE, desktop app and browser, reading and editing your codebase, running commands, opening pull requests and working on tasks in the cloud. [View Claude Code →]() [Original source]() [Read Claude Code 2.1.290 on Creators Toolbox]() --- Canonical source: https://creatorstoolbox.com/blog/claude-code-claude-code-2-1-290