Claude Code mcp

All MCP Bug Fixes

• Fixed a race condition related to MCP OAuth token refreshing when multiple Claude Code instances were running at the same time.(v2.1.59)
• Fixed shell commands that failed to show a clear error message when the working directory had been deleted.(v2.1.59)
• Fixed a security issue where `statusLine` and `fileSuggestion` hook commands could execute without workspace trust acceptance in interactive mode.(v2.1.51)
• Fixed a security issue where HTTP hooks could interpolate arbitrary environment variables from header values; env var interpolation now requires an explicit `allowedEnvVars` list.(v2.1.51)
• Fixed a bug where duplicate `control_response` messages (e.g. from WebSocket reconnects) could cause API 400 errors by pushing duplicate assistant messages into the conversation.(v2.1.51)
• Fixed slash command autocomplete crashing when a plugin's SKILL.md description is a YAML array or other non-string type(v2.1.51)
• Fixed an issue where resumed sessions could be invisible when the working directory contained symlinks due to inconsistent path resolution during startup.(v2.1.50)
• Fixed session data loss upon SSH disconnect by ensuring session data is flushed before hooks and analytics during graceful shutdown.(v2.1.50)
• Fixed native modules failing to load on Linux systems using glibc older than 2.30 (e.g., RHEL 8).(v2.1.50)
• Fixed a memory leak in agent teams where completed teammate tasks were not being garbage collected from session state.(v2.1.50)
• Fixed `CLAUDE_CODE_SIMPLE` mode to correctly strip down skills, session memory, custom agents, and CLAUDE.md token counting.(v2.1.50)
• Fixed the `/mcp reconnect` command from freezing the CLI when provided with a non-existent server name.(v2.1.50)
• Fixed a memory leak where completed task state objects were not being removed from AppState.(v2.1.50)
• Fixed an issue where MCP tools were not discovered when tool search was enabled and a prompt was provided as a launch argument.(v2.1.50)
• Fixed unbounded memory growth in long sessions by capping file history snapshots.(v2.1.50)
• Fixed a memory leak where LSP diagnostic data was not cleaned up after delivery.(v2.1.50)
• Fixed a memory leak where completed task output was not being freed from memory.(v2.1.50)
• Fixed a prompt suggestion cache regression that resulted in lower cache hit rates.(v2.1.50)
• Fixed a memory leak where TaskOutput retained recent lines after cleanup.(v2.1.50)
• Fixed a memory leak in CircularBuffer where cleared items were retained in the backing array.(v2.1.50)
• Fixed a memory leak in shell command execution where ChildProcess and AbortController references were retained after cleanup.(v2.1.50)
• Fixed Ctrl+C and ESC being silently ignored when background agents are running; pressing twice within 3 seconds now kills all background agents.(v2.1.49)
• Fixed prompt suggestion cache regression that was reducing cache hit rates.(v2.1.49)
• Fixed `plugin enable` and `plugin disable` to auto-detect the correct scope when `--scope` is omitted, instead of defaulting to user scope.(v2.1.49)
• Fixed verbose mode not updating the thinking block display when toggled via `/config` by ensuring memo comparators correctly detect verbose changes.(v2.1.49)
• Fixed unbounded WASM memory growth during long sessions by periodically resetting the tree-sitter parser.(v2.1.49)
• Fixed potential rendering issues caused by stale yoga layout references.(v2.1.49)
• Fixed unbounded memory growth during long-running sessions caused by Yoga WASM linear memory never shrinking.(v2.1.49)
• Fixed `disableAllHooks` setting to respect managed settings hierarchy, preventing non-managed settings from disabling policy-set managed hooks.(v2.1.49)
• Fixed the `--resume` session picker showing raw XML tags for sessions starting with commands like `/clear`; it now correctly falls through to the session ID fallback.(v2.1.49)
• Fixed FileWriteTool line counting to preserve intentional trailing blank lines instead of stripping them.(v2.1.47)
• Fixed Windows terminal rendering bugs where line counts showed incorrect values (always 1) due to `os.EOL` (`\r\n`) in display code.(v2.1.47)
• Fixed bold and colored text in markdown output shifting to the wrong characters on Windows due to `\r\n` line endings.(v2.1.47)
• Fixed compaction failing when conversations contain many PDF documents by stripping document blocks alongside images before sending to the compaction API.(v2.1.47)
• Fixed bash tool output being silently discarded on Windows when using MSYS2 or Cygwin shells.(v2.1.47)
• Fixed the bash permission classifier from incorrectly granting permissions based on hallucinated descriptions.(v2.1.47)
• Fixed user-defined agents only loading one file on NFS/FUSE filesystems that report zero inodes.(v2.1.47)
• Fixed plugin agent skills silently failing to load when referenced by bare name instead of fully-qualified plugin name.(v2.1.47)
• Fixed CWD tracking temp files never being cleaned up on Windows, preventing indefinite accumulation.(v2.1.47)
• Fixed API 400 errors ("thinking blocks cannot be modified") in sessions with concurrent agents caused by interleaved streaming content blocks.(v2.1.47)
• Fixed a single file write/edit error from aborting all other parallel file write/edit operations; independent mutations now complete on failure.(v2.1.47)
• Fixed custom session titles set via `/rename` being lost after resuming a conversation.(v2.1.47)
• Fixed collapsed read/search hint text overflowing on narrow terminals by truncating from the start.(v2.1.47)
• Fixed bash commands using backslash-newline continuation lines (`\` followed by newline) producing spurious empty arguments.(v2.1.47)
• Fixed built-in slash commands being hidden from the autocomplete dropdown when many user skills are installed.(v2.1.47)
• Fixed MCP servers not appearing in the MCP Management Dialog after deferred loading.(v2.1.47)
• Fixed session name persisting in status bar after `/clear` command.(v2.1.47)
• Fixed crash when a skill's `name` or `description` in SKILL.md frontmatter is a bare number, by coercing the value to a string.(v2.1.47)
• Fixed `/resume` silently dropping sessions when the first message exceeds 16KB or uses array-format content.(v2.1.47)
• Fixed `claude doctor` misclassifying mise and asdf-managed installations as native installs.(v2.1.47)
• Fixed zsh heredoc failing with "read-only file system" error in sandboxed commands.(v2.1.47)
• Fixed agent progress indicator showing inflated tool use count.(v2.1.47)
• Fixed image pasting not working on WSL2 systems where Windows copies images as BMP format.(v2.1.47)
• Fixed background agent results returning raw transcript data instead of the agent's final answer.(v2.1.47)
• Fixed Warp terminal incorrectly prompting for Shift+Enter setup when it supports it natively.(v2.1.47)
• Fixed CJK wide characters causing misaligned timestamps and layout elements in the TUI.(v2.1.47)
• Fixed custom agent `model` field in `.claude/agents/*.md` being ignored when spawning team teammates.(v2.1.47)
• Fixed plan mode being lost after context compaction, causing the model to switch from planning to implementation mode.(v2.1.47)
• Fixed `alwaysThinkingEnabled: true` in settings.json not enabling thinking mode on Bedrock and Vertex providers.(v2.1.47)
• Fixed `tool_decision` OTel telemetry event not being emitted in headless/SDK mode.(v2.1.47)
• Fixed session name being lost after context compaction; renamed sessions now preserve their custom title through compaction.(v2.1.47)
• Fixed `/resume <session-id>` failing to find sessions whose first message exceeds 16KB.(v2.1.47)
• Fixed "Always allow" on multiline bash commands creating invalid permission patterns that corrupt settings.(v2.1.47)
• Fixed React crash (error #31) when a skill's `argument-hint` in SKILL.md frontmatter uses YAML sequence syntax, by coercing the value to a string.(v2.1.47)
• Fixed crash when using `/fork` on sessions that used web search by gracefully handling null entries in search results.(v2.1.47)
• Fixed read-only git commands triggering FSEvents file watcher loops on macOS by adding --no-optional-locks flag.(v2.1.47)
• Fixed custom agents and skills not being discovered when running from a git worktree; project-level agent/skill directories are now included.(v2.1.47)
• Fixed non-interactive subcommands like `claude doctor` and `claude plugin validate` being blocked inside nested Claude sessions.(v2.1.47)
• Windows: Fixed the same CLAUDE.md file being loaded twice when drive letter casing differs between paths.(v2.1.47)
• Fixed inline code spans in markdown being incorrectly parsed as bash commands.(v2.1.47)
• Fixed teammate spinners not respecting custom spinnerVerbs from settings.(v2.1.47)
• Fixed shell commands permanently failing after a command deletes its own working directory.(v2.1.47)
• Fixed hooks (PreToolUse, PostToolUse) silently failing.(v2.1.47)
• Fixed Agent Teams teammates failing on Bedrock, Vertex, and Foundry by correctly propagating API provider environment variables to tmux-spawned processes.(v2.1.45)
• Resolved sandbox "operation not permitted" errors on macOS when writing temporary files by ensuring the correct per-user temp directory is used.(v2.1.45)
• Fixed a crash in the Task tool (backgrounded agents) caused by a `ReferenceError` upon task completion.(v2.1.45)
• Fixed autocomplete suggestions not being accepted via the Enter key when images have been pasted into the input field.(v2.1.45)
• Fixed skills invoked by subagents incorrectly appearing in the main session context after compaction.(v2.1.45)
• Fixed the accumulation of excessive `.claude.json.backup` files during every startup.(v2.1.45)
• Fixed plugin-provided commands, agents, and hooks not being available immediately after installation without requiring a full restart.(v2.1.45)
• Fixed VS Code terminal scroll-to-top regression introduced in 2.1.37(v2.1.38)
• Fixed Tab key queueing slash commands instead of autocompleting(v2.1.38)
• Fixed bash permission matching for commands using environment variable wrappers(v2.1.38)
• Fixed text between tool uses disappearing when not using streaming(v2.1.38)
• Fixed duplicate sessions when resuming in VS Code extension(v2.1.38)
• Fixed incorrect relative paths shown by @ file completion when running the tool from a subdirectory(v2.1.32)
• Fixed Bash tool throwing "Bad substitution" errors when heredocs contained JavaScript template literals like `${index + 1}`, preventing tool execution(v2.1.32)
• Fixed Thai/Lao spacing vowels (สระ า, ำ) not rendering correctly in the input field(v2.1.32)
• Fixed VSCode issue where slash commands were incorrectly executed when pressing Enter with preceding text in the input field(v2.1.32)
• Fixed phantom "(no content)" text blocks appearing in API conversation history, which reduced token waste and potential model confusion.(v2.1.30)
• Fixed prompt cache not correctly invalidating when tool descriptions or input schemas changed (it previously only invalidated when tool names changed).(v2.1.30)
• Fixed 400 errors that could occur after running `/login` when the conversation contained thinking blocks.(v2.1.30)
• Fixed a hang that occurred when resuming sessions with corrupted transcript files containing `parentUuid` cycles.(v2.1.30)
• Fixed rate limit message showing an incorrect "/upgrade" suggestion for Max 20x users when extra-usage is unavailable.(v2.1.30)
• Fixed permission dialogs stealing focus while the user was actively typing.(v2.1.30)
• Fixed subagents being unable to access SDK-provided MCP tools because they were not synced to the shared application state.(v2.1.30)
• Fixed a regression where Windows users with a `.bashrc` file could not run bash commands.(v2.1.30)
• Fixed duplicate sessions appearing in the VSCode session list when starting a new conversation.(v2.1.30)
• Fixed session compaction issues that could cause resume to load full history instead of the compact summary(v2.1.20)
• Fixed agents sometimes ignoring user messages sent while actively working on a task(v2.1.20)
• Fixed wide character (emoji, CJK) rendering artifacts where trailing columns were not cleared when replaced by narrower characters(v2.1.20)
• Fixed JSON parsing errors when MCP tool responses contain special Unicode characters(v2.1.20)
• Fixed up/down arrow keys in multi-line and wrapped text input to prioritize cursor movement over history navigation(v2.1.20)
• Fixed draft prompt being lost when pressing UP arrow to navigate command history(v2.1.20)
• Fixed ghost text flickering when typing slash commands mid-input(v2.1.20)
• Fixed marketplace source removal not properly deleting settings(v2.1.20)
• Fixed duplicate output in some commands like `/context`(v2.1.20)
• Fixed task list sometimes showing outside the main conversation view(v2.1.20)
• Fixed syntax highlighting for diffs occurring within multiline constructs like Python docstrings(v2.1.20)
• Fixed crashes when cancelling tool use(v2.1.20)
• Fixed the "Context left until auto-compact" warning that failed to disappear after executing the `/compact` command.(v2.1.15)
• Fixed the MCP stdio server timeout issue that prevented the child process from being killed, which previously caused UI freezes.(v2.1.15)
• Fixed excessive MCP connection requests when using HTTP/SSE transports.(v2.1.11)
• Fixed API errors related to orphan tool_result blocks occurring during long sessions with parallel tool calls.(v2.1.9)
• Fixed MCP server reconnection hanging when the cached connection promise fails to resolve.(v2.1.9)
• Fixed Ctrl+Z suspend functionality not working in terminals utilizing the Kitty keyboard protocol (including Ghostty, iTerm2, kitty, and WezTerm).(v2.1.9)
• Fixed a security vulnerability where wildcard permission rules could incorrectly match compound commands containing shell operators.(v2.1.7)
• Fixed false "file modified" errors occurring on Windows due to cloud sync tools or antivirus scanners touching file timestamps without content changes.(v2.1.7)
• Fixed orphaned `tool_result` errors when sibling tools failed during streaming execution.(v2.1.7)
• Fixed context window blocking limit calculation to use the effective context window (reserving space for max output tokens) instead of the full context window.(v2.1.7)
• Fixed a visual glitch where the spinner briefly flashed when running local slash commands like `/model` or `/theme`.(v2.1.7)
• Fixed terminal title animation jitter by utilizing fixed-width braille characters.(v2.1.7)
• Fixed plugins with git submodules not being fully initialized upon installation.(v2.1.7)
• Fixed bash commands failing on Windows when temporary directory paths contained characters like `t` or `n` that were misinterpreted as escape sequences.(v2.1.7)
• [VSCode] Fixed an issue where the `claudeProcessWrapper` setting was incorrectly passing the wrapper path instead of the Claude binary path.(v2.1.7)
• Fixed permission bypass via shell line continuation that could allow blocked commands to execute.(v2.1.6)
• Fixed false "File has been unexpectedly modified" errors when file watchers touch files without changing content.(v2.1.6)
• Fixed text styling (bold, colors) getting progressively misaligned in multi-line responses.(v2.1.6)
• Fixed the feedback panel closing unexpectedly when typing 'n' in the description field.(v2.1.6)
• Fixed rate limit warning appearing at low usage after weekly reset (now requires 70% usage).(v2.1.6)
• Fixed rate limit options menu incorrectly auto-opening when resuming a previous session.(v2.1.6)
• Fixed numpad keys outputting escape sequences instead of characters in Kitty keyboard protocol terminals.(v2.1.6)
• Fixed Option+Return not inserting newlines in Kitty keyboard protocol terminals.(v2.1.6)
• Fixed corrupted config backup files accumulating in the home directory (now only one backup is created per config file).(v2.1.6)
• Fixed mcp list and mcp get commands leaving orphaned MCP server processes.(v2.1.6)
• Fixed visual artifacts in ink2 mode when nodes become hidden via display:none.(v2.1.6)
• [VSCode] Fixed usage indicator not updating after manual compact.(v2.1.6)
• Fixed plan files persisting across `/clear` commands, ensuring a fresh plan file is used after clearing a conversation.(v2.1.3)
• Fixed false skill duplicate detection on filesystems with large inodes (e.g., ExFAT) by implementing 64-bit precision for inode values.(v2.1.3)
• Fixed mismatch between the background task count displayed in the status bar and the items shown in the tasks dialog.(v2.1.3)
• Fixed sub-agents using the incorrect model during conversation compaction.(v2.1.3)
• Fixed web search in sub-agents using the incorrect model.(v2.1.3)
• Fixed trust dialog acceptance when running from the home directory, ensuring trust-requiring features like hooks are enabled for the session.(v2.1.3)
• Fixed a command injection vulnerability in bash command processing where malformed input could execute arbitrary commands(v2.1.2)
• Fixed a memory leak where tree-sitter parse trees were not being freed, causing WASM memory to grow unbounded over long sessions(v2.1.2)
• Fixed binary files (images, PDFs, etc.) being accidentally included in memory when using @include directives in CLAUDE.md files(v2.1.2)
• Fixed updates incorrectly claiming another installation is in progress(v2.1.2)
• Fixed crash when socket files exist in watched directories(v2.1.2)
• Fixed remote session URL and teleport being broken when using /tasks command(v2.1.2)
• Fixed MCP tool names being exposed in analytics events by sanitizing user-specific server configurations(v2.1.2)
• Fixed usage display not updating after manual compact in VSCode(v2.1.2)
• Fixed an issue where the skill's `allowed-tools` configuration was not being applied to tools invoked by that skill(v2.0.74)
• Resolved an issue where the Opus 4.5 tip was incorrectly displayed to users already running Opus(v2.0.74)
• Fixed a potential crash scenario that occurred when syntax highlighting failed to initialize properly(v2.0.74)
• Fixed a visual bug in /plugins discover where the list selection indicator remained visible while the search box was focused(v2.0.74)
• Fixed macOS keyboard shortcuts to correctly display 'opt' instead of 'alt'(v2.0.74)