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Claude Code 2.1.243

First seen · Anthropic

Changes subagent definitions, MCP server config, skills and plugins

What the release notes say

  • Added a Loops breakdown to /usage: per-loop run count, total tokens, tokens per run, and last run, so runaway or chatty /loop tasks are easy to spot
  • Added modelPicker setting: curate the /model picker with an ordered, labeled list of models (any id spelling, including Vertex/Bedrock ids), appended to or replacing the built-in lineup
  • Added promptCacheTtl and subagentPromptCacheTtl settings so API-key and cloud-provider users can keep a 1-hour prompt cache on the main conversation while subagents stay at 5 minutes
  • Added modelPricing managed setting so an organization's contracted per-model rates and discount multiplier are used for /cost, the status line, and telemetry cost figures instead of list price
  • Added a keyless sign-in under /login → Anthropic Console: "Sign in with your Console account" (recommended) alongside creating an API key, so organizations that don't allow API keys can sign in
  • Added a Skipped sources line to /status that lists managed settings sources (for example managed-settings.json) present but not applied because a higher-precedence managed source is active
  • Added a managed marker in /mcp and /plugins on claude.ai connectors whose authentication is managed by your organization
  • Added a tip pointing claude.ai users who haven't connected GitHub for Claude Code on the web to /web-setup
  • Added a /status line showing whether GitHub is connected for Claude Code on the web (Pro/Max), pointing to /web-setup when it isn't
  • Added the model (and effort level) each subagent ran on to /tasks and the agent detail dialogs
  • Fixed remote MCP servers in non-interactive (-p) and SDK sessions never recovering after a dropped connection; they now reconnect automatically or report as failed
  • Fixed MCP server sign-in started from the desktop app failing with "Invalid redirect URI" on servers that support client ID metadata documents (for example Linear)
  • Fixed auto mode staying unavailable at startup when a temporary server-side disable was cached and later flag fetches failed
  • Fixed auto mode tool calls being denied as "temporarily unavailable" after about a minute of waiting when the API was briefly overloaded and asked the client to retry
  • Fixed the /model picker silently ignoring an Ultracode selection; picking Ultracode now applies it to the current session
  • Fixed /resume only listing the 50 most recent sessions; the picker now loads more as you scroll
  • Fixed cloud sessions resuming after a mid-turn restart with a pending hook or background-task notification re-sent as the prompt instead of the normal continuation message
  • Fixed cross-session messaging silently turning off inside user namespaces and rootless containers after the 2.1.232 socket-directory hardening
  • Fixed text that hangs outside its container (for example the sign-in URL in /login) losing its leading columns when another part of the screen repaints
  • Fixed spellcheck not underlining a misspelled word typed directly after an emoji
  • Fixed background subagents not waking when their last background Bash task completes
  • Fixed sessions going silent for 10+ minutes when the Anthropic API never starts a response: the request now times out after ~3 minutes, retries once, then shows API Error: No response from API
  • Fixed auth, model-availability, and other client-generated error messages rendering like model output instead of as error lines
  • Fixed workload identity federation in CI: processes in one job share the exchanged token instead of re-exchanging the single-use token; a rejected exchange fails fast with the server's message
  • Fixed server-managed companyAnnouncements not showing at startup in a session that began with signing in (for example the first launch after /logout)
  • Fixed hook if conditions like Bash(cat *) firing on unrelated Bash commands when the command contained $() or backtick command substitution followed by more arguments
  • Fixed plugin dependencies declared with a marketplace field never resolving when both plugins are loaded together via --plugin-dir
  • Fixed /reload-plugins keeping the LSP tool after the last LSP plugin is disabled; it now also warns before an LSP plugin change that would re-read the conversation
  • Fixed --agents silently ignoring invalid JSON or invalid agent definitions; it now exits with a clear error, like --mcp-config
  • Fixed /status showing "Found invalid entries in: ." with no filename when ~/.claude.json has an invalid MCP server entry
  • Fixed /clear removing the /rename session name from the prompt bar even though the name was kept for the new session
  • Fixed Ctrl+R history search and up-arrow history breaking when ~/.claude/history.jsonl contains a malformed entry
  • Fixed Ctrl+[ not leaving vim INSERT mode in terminals that encode modified keys (modifyOtherKeys / kitty protocol)
  • Fixed the local IDE connection being routed through HTTPS_PROXY (and sometimes failing) when localhost was listed in NO_PROXY but not lowercase no_proxy; both casings are now honored
  • Fixed sandbox network-violation details being dropped from the Bash tool result when the blocked command still exited 0 (for example curl printing the proxy's 403 page)
  • Fixed the status line rate_limits fields and /usage still showing a rate-limit window's pre-reset usage percentage after the window reset while the session was idle
  • Fixed claude --teleport <session> exiting on uncommitted changes instead of offering to stash them and continue, as the session picker already does
  • Fixed /web-setup repeatedly asking you to log in when an older GitHub CLI (without gh auth token) was already authenticated
  • Fixed Claude in Chrome losing its connection to Claude Code after an auto-update cleaned up the version it was set up with; the native host now launches via the stable claude launcher