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Claude Developer Platform von Anthropic

Fast Mode unterstützt Claude Opus 4.7

Der Fast Mode (Research Preview) unterstützt nun Claude Opus 4.7 über speed: "fast" und den Beta-Header fast-mode-2026-02-01 für deutlich schnellere Ausgabe zu Premium-Preisen, wobei Preise, Limits und Zugang denen von Opus 4.6 Fast Mode entsprechen.

  • Fast mode (research preview) now supports Claude Opus 4.7. Set speed: "fast" with model: "claude-opus-4-7" and the fast-mode-2026-02-01 beta header for significantly faster output token generation at premium pricing. Pricing, rate limits, and access are the same as for Opus 4.6 fast mode; interested customers should join the waitlist.

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Claude Code von Anthropic

Claude Code 2.1.139: Agent view, /goal und /scroll-speed

Version 2.1.139 führt die Agent view (Research Preview) über claude agents, den Befehl /goal, /scroll-speed, claude plugin details, Hook-Felder wie args und continueOnBlock sowie weitere Verbesserungen an MCP und Transcript-Ansicht ein.

  • Added agent view (Research Preview): a single list of every Claude Code session — running, blocked on you, or done. Run claude agents to get started. See https://code.claude.com/docs/en/agent-view
  • Added /goal command: set a completion condition and Claude keeps working across turns until it's met. Works in interactive, -p, and Remote Control. Shows live elapsed/turns/tokens as an overlay panel
  • Added /scroll-speed command to tune mouse wheel scroll speed with a live preview
  • Added claude plugin details <name> to show a plugin's component inventory and projected per-session token cost
  • Added transcript view navigation: ? for keyboard shortcuts, {/} to jump between user prompts, v to toggle shortcut panel
  • Added hook args: string[] field (exec form) that spawns the command directly without a shell, so path placeholders never need quoting
  • Added hook continueOnBlock config option for PostToolUse — set to true to feed the hook's rejection reason back to Claude and continue the turn
  • MCP stdio servers now receive CLAUDE_PROJECT_DIR in their environment, matching hooks. Plugin configs can reference ${CLAUDE_PROJECT_DIR} in commands
  • Compaction prompt now asks the model to preserve sensitive user instructions
  • /mcp Reconnect now picks up .mcp.json edits without a restart, and shows the HTTP status and URL when reconnecting fails
  • /context all per-skill token estimates now account for the model's tokenizer and show rounded values …

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Claude Developer Platform von Anthropic

Claude Platform on AWS gestartet

Mit Claude Platform on AWS ist die Claude API auf von Anthropic betriebener Infrastruktur über AWS-Endpunkte mit AWS-Abrechnung und IAM-Authentifizierung nutzbar, einschließlich Messages API, Files API, Message Batches API, Managed Agents, Agent Skills, Code Execution und Tool Use.

  • We've launched Claude Platform on AWS, bringing the Claude API to Anthropic-managed infrastructure accessible through AWS, with AWS billing and IAM authentication. Access the full Messages API, Files API, Message Batches API, Claude Managed Agents, Agent Skills, code execution, and tool use through native AWS endpoints. Learn more in Claude Platform on AWS.

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Claude Code von Anthropic

Claude Code 2.1.137: VS-Code-Aktivierung unter Windows behoben

Version 2.1.137 behebt, dass sich die VS-Code-Erweiterung unter Windows nicht aktivieren ließ.

  • [VSCode] Fixed extension failing to activate on Windows

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Claude Code von Anthropic

Claude Code 2.1.136: autoMode.hard_deny und MCP-/Login-Fixes

Version 2.1.136 ergänzt settings.autoMode.hard_deny sowie CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL und behebt mehrere Fehler bei MCP-Servern, OAuth-Tokens, --resume, Plan mode und WSL2-Bildeinfügen.

  • Added CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL to re-enable the session quality survey for enterprises capturing responses through OpenTelemetry
  • Added settings.autoMode.hard_deny for auto mode classifier rules that block unconditionally regardless of user intent or allow exceptions
  • Fixed MCP servers configured in .mcp.json, plugins, and claude.ai connectors silently disappearing after /clear in the VS Code extension, JetBrains plugin, and Agent SDK
  • Fixed a rare login loop where a concurrent credential write could overwrite a freshly-rotated OAuth token and force re-login
  • Fixed MCP OAuth refresh tokens being lost when multiple servers refresh concurrently — users with several remote MCP servers should no longer need daily re-authentication
  • Fixed an API error (400) when extended thinking emitted a redacted thinking block after a tool call
  • Fixed --resume / --continue not finding sessions when the project path contains underscores
  • Fixed plan mode not blocking file writes when a matching Edit(...) allow rule exists
  • WSL2: image paste from Windows clipboard now works via a PowerShell fallback when xclip/wl-paste cannot read image data
  • Fixed plugin Stop/UserPromptSubmit hooks failing when cache cleanup deletes a version still in use by a running session …

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Claude Code von Anthropic

Claude Code 2.1.133: worktree.baseRef und Sandbox-Einstellungen

Version 2.1.133 ergänzt worktree.baseRef (Standard fresh, wodurch EnterWorktree wieder von origin/<default> abzweigt), sandbox.bwrapPath und sandbox.socatPath, parentSettingsBehavior sowie CLAUDE_EFFORT für Hooks und behebt mehrere Fehler bei Authentifizierung und Berechtigungsregeln.

  • Added worktree.baseRef setting (fresh | head) to choose whether --worktree, EnterWorktree, and agent-isolation worktrees branch from origin/<default> or local HEAD. Note: the default fresh changes EnterWorktree's base back to origin/<default> (it has been local HEAD since 2.1.128) — set worktree.baseRef: "head" to keep unpushed commits in new worktrees
  • Added sandbox.bwrapPath and sandbox.socatPath managed settings (Linux/WSL) to specify custom bubblewrap and socat binary locations
  • Added parentSettingsBehavior admin-tier key ('first-wins' | 'merge') to let admins opt SDK managedSettings (parent tier) into the policy merge
  • Hooks now receive the active effort level via the effort.level JSON input field and the $CLAUDE_EFFORT environment variable, and Bash tool commands can read $CLAUDE_EFFORT
  • Improved focus mode behavior
  • Improved memory usage by releasing warm-spare background workers under memory pressure
  • Fixed parallel sessions all dead-ending at 401 after a refresh-token race wiped shared credentials
  • Fixed Edit/Write allow rules scoped to a drive root (C:\) or POSIX / matching incorrectly and always prompting
  • Fixed an unhandled rejection (ECOMPROMISED) when a history or session-log file lock is compromised by clock skew or slow disk
  • Fixed pressing Esc during conversation compaction showing a spurious "Error compacting conversation" notification …

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Claude Code von Anthropic

Claude Code 2.1.132: Neue Umgebungsvariablen und Terminal-Fixes

Version 2.1.132 ergänzt CLAUDE_CODE_SESSION_ID und CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN=1 und behebt unter anderem SIGINT-Behandlung, --resume-Fehler, Plan-mode-Probleme sowie Cursor- und Vim-Darstellungsfehler.

  • Added CLAUDE_CODE_SESSION_ID environment variable to the Bash tool subprocess environment, matching the session_id passed to hooks
  • Added CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN=1 env var to opt out of the fullscreen alternate-screen renderer and keep the conversation in the terminal's native scrollback
  • Added a "Pasting…" footer hint while a Ctrl+V image paste is being read from the clipboard
  • Fixed external SIGINT (e.g. IDE stop button, kill -INT) not running graceful shutdown — terminal modes are now restored and the --resume hint is printed instead of an abrupt exit
  • Fixed an uncaught exception when the terminal is closed or SSH disconnects mid-session under the native build
  • Fixed --resume failing with no low surrogate in string when a tool error truncation split an emoji; pre-corrupted sessions are sanitized on load
  • Fixed --permission-mode flag being ignored when resuming a plan-mode session with -p --continue/--resume, and plan mode not being re-applied after ExitPlanMode within the same session
  • Fixed fullscreen mode showing a blank screen after laptop sleep/wake or Ctrl+Z/fg until the next keystroke or stream output
  • Fixed cursor landing mid-grapheme on Ctrl+E/A/K/U/arrow keys when an Indic conjunct or ZWJ emoji wraps across lines
  • Fixed vim operators corrupting text containing decomposed (NFD) accented characters
  • Fixed pasting text starting with / silently swallowing the input or triggering an unknown-command reply …

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Claude Code von Anthropic

Claude Code 2.1.131: VS-Code- und Mantle-Fixes

Version 2.1.131 behebt die fehlgeschlagene Aktivierung der VS-Code-Erweiterung unter Windows und fehlende x-api-key-Header bei der Mantle-Endpoint-Authentifizierung.

  • Fixed VS Code extension failing to activate on Windows due to a hardcoded build path in the bundled SDK (createRequire polyfill bug)
  • Fixed Mantle endpoint authentication failing with missing x-api-key header

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Claude Code von Anthropic

Claude Code 2.1.129: --plugin-url und neue Umgebungsvariablen

Version 2.1.129 ergänzt das Flag --plugin-url, CLAUDE_CODE_FORCE_SYNC_OUTPUT und CLAUDE_CODE_PACKAGE_MANAGER_AUTO_UPDATE, macht Gateway-Modellerkennung per Opt-in verfügbar, stellt den Ctrl+R-Verlauf projektübergreifend wieder her und lässt skillOverrides funktionieren.

  • Added --plugin-url <url> flag to fetch a plugin .zip archive from a URL for the current session
  • Added CLAUDE_CODE_FORCE_SYNC_OUTPUT=1 env var to force-enable synchronized output on terminals that auto-detection misses (e.g. Emacs eat)
  • Added CLAUDE_CODE_PACKAGE_MANAGER_AUTO_UPDATE: when set on Homebrew or WinGet installations, Claude Code runs the upgrade command in the background and prompts to restart
  • Plugin manifests: themes and monitors should now be declared under "experimental": { ... }. Top-level declarations still work but claude plugin validate will warn
  • Gateway /v1/models discovery for the /model picker is now opt-in via CLAUDE_CODE_ENABLE_GATEWAY_MODEL_DISCOVERY=1 (was automatic in 2.1.126–2.1.128)
  • Ctrl+R history picker now defaults to searching all prompts across all projects, matching pre-2.1.124 behavior. Press Ctrl+S to narrow to the current project or session
  • Third-party deployments (Bedrock, Vertex, Foundry, or ANTHROPIC_BASE_URL gateway) no longer see spinner tips pointing at first-party Anthropic surfaces
  • skillOverrides setting now works: off hides from model and /, user-invocable-only hides from model only, name-only collapses description
  • The claude_code.pull_request.count OTel metric now counts PRs/MRs created via MCP tools, not just shell commands
  • Policy refusal error messages now include the API Request ID for easier support debugging …

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Claude Developer Platform von Anthropic

Managed Agents: Multiagent, Outcomes, Webhooks und Dreams

Multiagent Orchestration und Outcomes sind in der öffentlichen Beta, und Claude Managed Agents erhalten Webhooks, Hintergrund-Refresh für mcp_oauth-Credentials, zusätzliche Filter- und Sortieroptionen sowie Dreams als Research Preview zum Umorganisieren von Memory Stores.

  • Multiagent orchestration and Outcomes are now in public beta under the standard managed-agents-2026-04-01 beta header.
  • Claude Managed Agents vault credential background refresh is now supported for mcp_oauth credentials. See Authenticate with vaults.
  • Webhooks for Claude Managed Agents are now supported. Webhook event types include session and vault lifecycle events. See Subscribe to webhooks.
  • Additional filtering and sorting options are now supported for Claude Managed Agents. Sessions can be filtered by status, and events can be filtered by type. Events can now be filtered by creation time.
  • Dreams for Claude Managed Agents are now available as a research preview. A dream reads an existing memory store alongside past session transcripts and produces a reorganized output memory store with duplicates merged, stale entries replaced, and new insights surfaced. Dream endpoints are gated by the dreaming-2026-04-21 beta header. Request access to try it.

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Claude Code von Anthropic

Claude Code 2.1.128: /mcp-Toolanzahl, .zip-Plugins, EnterWorktree-Fix

Version 2.1.128 zeigt in /mcp die Tool-Anzahl, akzeptiert .zip-Plugins bei --plugin-dir, lässt --channels mit API-Key-Authentifizierung zu, überarbeitet den /model-Picker und erstellt mit EnterWorktree neue Branches wieder von lokalem HEAD.

  • Bare /color (no args) now picks a random session color
  • /mcp now shows the tool count for connected servers and flags servers that connected with 0 tools
  • --plugin-dir now accepts .zip plugin archives in addition to directories
  • --channels now works with console (API key) authentication — console orgs with managed settings must set channelsEnabled: true to enable
  • Updated /model picker: collapsed duplicate Opus 4.7 entries, and current Opus now shows as "Opus" instead of "Opus 4.7"
  • Subprocesses (Bash, hooks, MCP, LSP) no longer inherit OTEL_* environment variables, so OTEL-instrumented apps run via the Bash tool no longer pick up the CLI's own OTLP endpoint
  • MCP: workspace is now a reserved server name — existing servers with that name will be skipped with a warning
  • Reconnecting MCP servers no longer flood the conversation with full tool-name lists on every reconnect — re-announced tools are summarized by server prefix
  • SDK hosts now receive a persistent localSettings suggestion for Bash permission prompts, so "Always allow" writes to .claude/settings.local.json
  • EnterWorktree now creates the new branch from local HEAD as documented, instead of origin/<default-branch> — unpushed commits are no longer dropped
  • Auto mode: when the classifier can't evaluate an action, the error now includes a hint (retry, /compact, or run with --debug)
  • Fixed focus mode briefly dimming the previous response when submitting a new prompt …

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Claude Developer Platform von Anthropic

Workload Identity Federation für die Claude API

Mit Workload Identity Federation lassen sich Workloads über kurzlebige OIDC-Tokens des eigenen Identity Providers statt über langlebige statische API-Schlüssel an der Claude API authentifizieren, wobei der SDK Token-Austausch und Refresh übernimmt.

  • We've launched Workload Identity Federation. Authenticate workloads to the Claude API with short-lived OIDC tokens from your own identity provider (AWS IAM, Google Cloud, GitHub Actions, Kubernetes, Microsoft Entra ID, Okta, SPIFFE, and more) instead of long-lived static API keys. Configure issuers and federation rules in the Claude Console, and the SDK handles token exchange and refresh automatically. See Authentication.

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Claude Code von Anthropic

Claude Code 2.1.126: Gateway-Modelle im /model-Picker, claude project purge

Version 2.1.126 listet im /model-Picker Modelle von Gateways, ergänzt claude project purge, lässt --dangerously-skip-permissions mehr geschützte Pfade umgehen und verbessert Login, OpenTelemetry-Events sowie PowerShell-Erkennung unter Windows.

  • The /model picker now lists models from your gateway's /v1/models endpoint when ANTHROPIC_BASE_URL points at an Anthropic-compatible gateway
    • Added claude project purge [path] to delete all Claude Code state for a project (transcripts, tasks, file history, config entry) — supports --dry-run, -y/--yes, -i/--interactive, and --all
  • --dangerously-skip-permissions now bypasses prompts for writes to .claude/, .git/, .vscode/, shell config files, and other previously-protected paths (catastrophic removal commands still prompt as a safety net)
  • claude auth login now accepts the OAuth code pasted into the terminal when the browser callback can't reach localhost (WSL2, SSH, containers)
  • claude_code.skill_activated OpenTelemetry event now fires for user-typed slash commands and carries a new invocation_trigger attribute ("user-slash", "claude-proactive", or "nested-skill")
  • Auto mode: the spinner now turns red when a permission check stalls, instead of looking like the tool is running
  • Host-managed deployments (CLAUDE_CODE_PROVIDER_MANAGED_BY_HOST) no longer auto-disable analytics on Bedrock/Vertex/Foundry
  • Windows: PowerShell 7 installed via the Microsoft Store, MSI without PATH, or .NET global tool is now detected
  • Windows: when the PowerShell tool is enabled, Claude now treats PowerShell as the primary shell instead of defaulting to Bash …

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Claude Developer Platform von Anthropic

1M-Kontext-Beta für Sonnet 4.5 und Sonnet 4 eingestellt

Die 1M-Token-Kontext-Beta (context-1m-2025-08-07) für Claude Sonnet 4.5 und Sonnet 4 ist beendet, der Header wirkt nicht mehr und Anfragen über 200k Tokens liefern einen Fehler, weshalb der Umstieg auf Claude Sonnet 4.6 oder Opus 4.6 empfohlen wird.

  • We've retired the 1M token context window beta (context-1m-2025-08-07) for Claude Sonnet 4.5 and Claude Sonnet 4. The beta header now has no effect on these models, and requests exceeding the standard 200k-token context window return an error. To use the 1M context window, migrate to Claude Sonnet 4.6 or Claude Opus 4.6, where it's included at standard pricing with no beta header required.

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Claude Code von Anthropic

Claude Code 2.1.123: OAuth-401-Schleife behoben

Version 2.1.123 behebt eine 401-Wiederholungsschleife bei der OAuth-Authentifizierung, wenn CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1 gesetzt ist.

  • Fixed OAuth authentication failing with a 401 retry loop when CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1 is set

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Claude Developer Platform von Anthropic

Open-Source Claude API Skill veröffentlicht

Der quelloffene Claude API Skill liefert Claude aktuelles Referenzmaterial zum Entwickeln mit der Messages API und Claude Managed Agents in 8 Sprachen und ist in Claude Code enthalten sowie im Anthropic-Skills-Repository verfügbar.

  • We've released the Claude API skill, an open-source Agent Skill that gives Claude up-to-date reference material for building on the Messages API and Claude Managed Agents across 8 languages. The skill is bundled with Claude Code and available in the Anthropic skills repository.

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Claude Code von Anthropic

Claude Code 2.1.122: Bedrock-Service-Tier und /resume per PR-URL

Version 2.1.122 ergänzt ANTHROPIC_BEDROCK_SERVICE_TIER, die Suche nach Sitzungen per PR-URL in /resume, neue OpenTelemetry-Angaben und behebt Fehler bei /branch, /model sowie Vertex AI und Bedrock.

  • Added ANTHROPIC_BEDROCK_SERVICE_TIER environment variable to select a Bedrock service tier (default, flex, or priority), sent as the X-Amzn-Bedrock-Service-Tier header
  • Pasting a PR URL into the /resume search box now finds the session that created that PR (GitHub, GitHub Enterprise, GitLab, and Bitbucket)
  • /mcp now shows claude.ai connectors hidden by a manually-added server with the same URL, with a hint to remove the duplicate
  • Clarified the /mcp message shown when an MCP server is still unauthorized after the browser sign-in flow
  • OpenTelemetry: numeric attributes on api_request/api_error log events are now emitted as numbers, not strings
  • OpenTelemetry: added claude_code.at_mention log event for @-mention resolution
  • Fixed /branch producing forks that fail with "tool_use ids were found without tool_result blocks" when the source session contained entries from rewound timelines
  • Fixed /model not showing the Effort option for Bedrock application inference profile ARNs, and those ARNs not receiving output_config.effort
  • Fixed Vertex AI / Bedrock returning invalid_request_error: output_config: Extra inputs are not permitted on session-title generation and other structured-output queries
  • Fixed Vertex AI count_tokens endpoint returning 400 errors for users behind proxy gateways
  • Fixed spinnerTipsOverride.excludeDefault not suppressing the time-based spinner tips …

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Claude Code von Anthropic

Claude Code 2.1.121: alwaysLoad für MCP, claude plugin prune

Version 2.1.121 ergänzt die MCP-Option alwaysLoad, claude plugin prune und eine Filtersuche in /skills, erlaubt PostToolUse-Hooks das Ersetzen der Ausgabe aller Tools und bringt Verbesserungen im Fullscreen-Modus sowie automatische MCP-Wiederholungsversuche.

  • Added alwaysLoad option to MCP server config — when true, all tools from that server skip tool-search deferral and are always available
  • Added claude plugin prune to remove orphaned auto-installed plugin dependencies; plugin uninstall --prune cascades
  • Added a type-to-filter search box to /skills so you can find a skill in long lists without scrolling
  • PostToolUse hooks can now replace tool output for all tools via hookSpecificOutput.updatedToolOutput (previously MCP-only)
  • Fullscreen mode: typing into the prompt no longer jumps scroll back to the bottom after you've scrolled up to read earlier output
  • Dialogs that overflow the terminal are now scrollable with arrow keys, PgUp/PgDn, home/end, and mouse wheel in both fullscreen and non-fullscreen modes
  • Clicking any line of a long URL that wraps across rows in fullscreen mode now opens the full URL
  • SDK and claude -p: CLAUDE_CODE_FORK_SUBAGENT=1 now works in non-interactive sessions
  • --dangerously-skip-permissions no longer prompts for writes to .claude/skills/, .claude/agents/, and .claude/commands/
  • /terminal-setup now enables iTerm2's "Applications in terminal may access clipboard" setting so /copy works, including from tmux
  • MCP servers that hit a transient error during startup now auto-retry up to 3 times instead of staying disconnected
  • The terminal tab session title is now generated in your configured language setting …

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Rate Limits API veröffentlicht

Mit der neuen Rate Limits API können Administratoren die für ihre Organisation und Workspaces konfigurierten Rate Limits programmatisch abfragen.

  • We've released the Rate Limits API, allowing administrators to programmatically query the rate limits configured for their organization and workspaces.

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