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TokenBlast

Interactive config generator for Claude Code environment flags. Find your preferred balance of cost, tokens, and thinking.

www.tokenblast.cc

Generated from Claude Code v2.1.251 — 614 flags across 18 categories.

Authentication & Identity

Flag Type Description
ANTHROPIC_API_KEY text Direct API key for Anthropic inference — bypasses OAuth flow entirely.
ANTHROPIC_AUTH_TOKEN text Bearer token used as an alternative credential, checked before OAuth sources.
ANTHROPIC_BASE_URL text Reroutes all API traffic to a custom endpoint, overriding the default api.anthropic.com.
ANTHROPIC_IDENTITY_TOKEN text Inline OIDC federation identity token used for token-exchange auth when no identity_token_file path is configured.
ANTHROPIC_UNIX_SOCKET text Routes Anthropic API requests through a local Unix domain socket instead of TCP.
CLAUDE_CODE_ACCOUNT_TAGGED_ID text Overrides the OTEL account ID tag used in telemetry metrics, falls back to a derived value.
CLAUDE_CODE_ACCOUNT_UUID text Injects account UUID to pre-populate OAuth session without interactive login.
CLAUDE_CODE_API_BASE_URL text Reroutes Files API calls to a custom base URL, falling back to ANTHROPIC_BASE_URL.
CLAUDE_CODE_API_KEY_FILE_DESCRIPTOR text Reads the API key from a file descriptor, enabling secure secret injection without env-var exposure.
CLAUDE_CODE_API_KEY_HELPER_TTL_MS number Controls how long the API key helper script result is cached before re-executing.
CLAUDE_CODE_ARTIFACTS_API_TOKEN text
CLAUDE_CODE_ATTRIBUTION_HEADER boolean Suppresses the Claude Code attribution header appended to API requests when set.
CLAUDE_CODE_AUTH_FAIL_EXIT_MS number Forces remote child sessions to exit after sustained auth failure; default ten minutes.
CLAUDE_CODE_CUSTOM_OAUTH_URL text Overrides the OAuth base URL to an approved custom endpoint for non-production auth flows.
CLAUDE_CODE_DESIGN_OAUTH_CLIENT_ID text Overrides the registered OAuth client id used for Claude Design login.
CLAUDE_CODE_HFI_BEARER_TOKEN text Authenticates requests to the Human Feedback Interface service via bearer token.
CLAUDE_CODE_HOST_AUTH_ENV_VAR text Names the environment variable holding the host authentication token.
CLAUDE_CODE_HOST_AUTH_REFRESH_TIMEOUT_MS number Controls how long to wait for a host auth token refresh before timing out.
CLAUDE_CODE_MEMORY_API_TOKEN text
CLAUDE_CODE_MESSAGING_TOKEN text
CLAUDE_CODE_OAUTH_ text Overrides OAuth credentials (token, client ID, scopes) used for authentication.
CLAUDE_CODE_OAUTH_CLIENT_ID text Overrides the default OAuth client ID used during the authorization code flow.
CLAUDE_CODE_OAUTH_REFRESH_TOKEN text Seeds an OAuth refresh token directly, skipping the interactive browser login step.
CLAUDE_CODE_OAUTH_SCOPES text Declares space-separated OAuth scopes required when bootstrapping via a refresh token.
CLAUDE_CODE_OAUTH_TOKEN text Provides a pre-issued OAuth access token, bypassing device-flow login entirely.
CLAUDE_CODE_OAUTH_TOKEN_FILE_DESCRIPTOR text Reads the OAuth access token from a file descriptor for secure secret injection.
CLAUDE_CODE_ORGANIZATION_UUID text Pins requests to a specific organization UUID, bypassing the profile-fetch lookup.
CLAUDE_CODE_SDK_HAS_HOST_AUTH_REFRESH text Signals that the embedding SDK provides a host auth token refresh callback.
CLAUDE_CODE_SESSION_ACCESS_TOKEN text Provides a session-scoped access token used by remote/bridge entrypoints instead of OAuth.
CLAUDE_CODE_SKIP_ANTHROPIC_GOOGLE_CLOUD_AUTH boolean Disables automatic Google Cloud credential lookup for Anthropic-on-Vertex requests.
CLAUDE_CODE_SLACK_TAG_TOKEN text
CLAUDE_CODE_USER_EMAIL text Injects user email to pre-populate OAuth session alongside account UUID and org UUID.
CLAUDE_CODE_WEBSOCKET_AUTH_FILE_DESCRIPTOR text Reads the WebSocket session ingress token from a file descriptor for remote mode auth.

Context & Memory

Flag Type Description
CLAUDE_CODE_ADDITIONAL_DIRECTORIES_CLAUDE_MD text Adds extra directories to scan for CLAUDE.md and rules files, expanding the system-prompt context.
CLAUDE_CODE_AUTO_COMPACT_WINDOW number Token threshold for auto-compaction. Lower = more aggressive compaction.
CLAUDE_CODE_AUTO_MODE_PRIOR_ASSISTANT_CONTEXT text Includes prior assistant turns in auto-mode permission evaluation.
CLAUDE_CODE_COLD_COMPACT text Forces a cold compaction run regardless of current context fill level.
CLAUDE_CODE_COORDINATOR_PROPAGATE_NESTED_MEMORY text Propagates nested CLAUDE.md files loaded by subagents into the coordinator's context.
CLAUDE_CODE_DISABLE_AUTO_MEMORY boolean Disables automatic memory reads and writes, removing memory content from each turn's context.
CLAUDE_CODE_DISABLE_CLAUDE_MDS boolean Strips all CLAUDE.md file content from the system prompt entirely.
CLAUDE_CODE_DISABLE_GIT_INSTRUCTIONS boolean Strips built-in git workflow instructions from the system prompt.
CLAUDE_CODE_DISABLE_MEMORY_BULK_INFLATE boolean Disables bulk pre-loading of memory entries into context, reducing upfront token usage.
CLAUDE_CODE_DISABLE_MEMORY_MASS_DELETE_HOLD boolean Removes the threshold that holds back large batches of corroborated memory deletions.
CLAUDE_CODE_DISABLE_MEMORY_PERIODIC_RESYNC boolean Disables the periodic background resync of the on-disk memory store.
CLAUDE_CODE_DISABLE_MEMORY_RO_UNSAVED_NOTICE boolean
CLAUDE_CODE_DISABLE_MEMORY_STREAM_LIST boolean Disables periodic streaming sync of multi-store memory metadata.
CLAUDE_CODE_DISABLE_NESTED_CHAIN_IDLE boolean Disables idle-state tracking for nested agent chains blocked on user input.
CLAUDE_CODE_DISABLE_ORG_MEMORY boolean Disables organization-level shared memory ledger writes and reads.
CLAUDE_CODE_DISABLE_PRECOMPACT_SKIP boolean Forces the full compaction pipeline, disabling the fast-path short-circuit for large contexts.
CLAUDE_CODE_ENABLE_AWAY_SUMMARY boolean Enables an idle-return summary notification when resuming after an away period.
CLAUDE_CODE_FORCE_EVALUATE_MEMORY boolean Forces memory evaluation on every turn, bypassing normal trigger conditions.
CLAUDE_CODE_FORCE_MEMORY_SURVEY boolean Forces the memory-save survey to appear regardless of normal eligibility checks.
CLAUDE_CODE_IDLE_THRESHOLD_MINUTES number Controls the inactivity window (in minutes) before idle-state detection fires. Default 75.
CLAUDE_CODE_IDLE_TOKEN_THRESHOLD number Sets the minimum context token count required before idle-state detection activates. Default 100000.
CLAUDE_CODE_INCLUDE_PARTIAL_MESSAGES boolean Includes incomplete in-flight messages in the context window during streaming.
CLAUDE_CODE_MAX_CONTEXT_TOKENS number Overrides the model context window size, active only when DISABLE_COMPACT is also set.
CLAUDE_CODE_MCP_MEMORY_CGROUP text
CLAUDE_CODE_MCP_TOOL_IDLE_TIMEOUT number Caps silent MCP tool runtime in milliseconds; 0 disables the timeout.
CLAUDE_CODE_MEMORY_API_BASE_URL text
CLAUDE_CODE_MEMORY_PUSH_DELETE_MODE text Overrides memory push delete-mode ('immediate' or 'never') instead of default corroboration.
CLAUDE_CODE_REMOTE_MEMORY_DIR text Redirects memory and session storage to an alternative directory for remote deployments.
CLAUDE_CODE_RESUME_FROM_SESSION text Hydrates conversation context from a specific prior session ID via the Sessions API.
CLAUDE_CODE_RESUME_INTERRUPTED_TURN boolean Automatically resumes an interrupted turn by re-injecting its message content.
CLAUDE_CODE_RESUME_INTERRUPTED_TURN_MAX_AGE_MS number Caps how old an interrupted turn can be before resume is skipped.
CLAUDE_CODE_RESUME_PROMPT text Overrides the default message injected when resuming an interrupted session.
CLAUDE_CODE_RESUME_SOURCE_ALIVE text Verifies source session liveness during resume, forking data on mismatch.
CLAUDE_CODE_RESUME_THRESHOLD_MINUTES number Sets minutes since the last message before the resume-session flow is offered. Default 70.
CLAUDE_CODE_RESUME_TOKEN_THRESHOLD number Sets the minimum token count required before the resume-session prompt appears. Default 100000.
CLAUDE_CODE_RESUME_TOLERATES_CONTEXT_APPENDS text
CLAUDE_CODE_SKIP_PROMPT_HISTORY boolean Skips loading persisted prompt history at session start, suppressing prior-turn entries.
CLAUDE_CODE_TOOL_MEMORY_CGROUP_EXCLUDE text
CLAUDE_CODE_TOOL_MEMORY_LIMIT text

Debugging & Diagnostics

Flag Type Description
ANTHROPIC_PROFILE text Selects which profile file to load from <config_dir>/configs/.json, overriding the active_config pointer and defaulting to "default".
CLAUDE_CODE_DEBUG_LOG_LEVEL select Controls the minimum log severity written to the debug log file (verbose/debug/info/warn/error).
CLAUDE_CODE_DEBUG_LOGS_DIR text Redirects debug log output to a specific file path instead of the default session log.
CLAUDE_CODE_DEBUG_REPAINTS boolean Enables UI repaint cycle tracking, surfacing which React components are re-rendering.
CLAUDE_CODE_DIAGNOSTICS_FILE text Writes structured diagnostic events to a specified file path for external analysis.
CLAUDE_CODE_FRAME_TIMING_LOG boolean Logs per-frame render timing including phase breakdowns and RSS memory usage.
CLAUDE_CODE_FRAME_TIMING_SAMPLE_EVERY text Samples every Nth frame when frame-timing logging is enabled.
CLAUDE_CODE_PERFETTO_TRACE boolean Enables Perfetto-format performance tracing for agent process and thread activity.
CLAUDE_CODE_PERFETTO_WRITE_INTERVAL_S number Controls the flush interval in seconds for Perfetto performance trace output.
CLAUDE_CODE_PROFILE_QUERY boolean Enables per-query profiling checkpoints, surfacing a timing report on demand.
CLAUDE_CODE_PROFILE_STARTUP boolean Enables detailed startup phase profiling and emits a startup-perf telemetry event.
CLAUDE_CODE_SLOW_OPERATION_THRESHOLD_MS number Sets the threshold (ms) above which operations are flagged as slow in diagnostics.
CLAUDE_CODE_STALL_TIMEOUT_MS_FOR_TESTING number Overrides the stall-detection abort timeout for test harnesses.

IDE & Editor Integration

Flag Type Description
ANTHROPIC_IDENTITY_TOKEN_FILE text Path to a file containing the OIDC federation identity token, preferred over the inline ANTHROPIC_IDENTITY_TOKEN value.
CLAUDE_CODE_AUTO_CONNECT_IDE boolean Forces automatic IDE extension connection on startup, or explicitly disables it when false.
CLAUDE_CODE_EVAL_ALLOW_FLAG_OVERRIDES text
CLAUDE_CODE_HIDE_CWD text Hides the current working directory from the TUI status header.
CLAUDE_CODE_HIDE_SETTINGS_HINT text Hides the settings hint from the startup interface.
CLAUDE_CODE_IDE_HOST_OVERRIDE text Overrides the IDE host address, bypassing WSL gateway detection entirely.
CLAUDE_CODE_IDE_SKIP_AUTO_INSTALL boolean Prevents automatic IDE extension installation on startup.
CLAUDE_CODE_IDE_SKIP_VALID_CHECK boolean Skips workspace-folder validation when discovering IDE connections.
CLAUDE_CODE_OVERRIDE_DATE text Overrides the current date used by the CLI, enabling time-dependent behaviour testing.

Model & Effort

Flag Type Description
ANTHROPIC_BETAS text Appends comma-separated beta feature identifiers to every API request's beta header.
ANTHROPIC_CUSTOM_HEADERS text Injects newline-delimited HTTP headers into every Anthropic API request.
ANTHROPIC_CUSTOM_MODEL_OPTION text Adds a custom model ID to the CLI model picker as a selectable option.
ANTHROPIC_CUSTOM_MODEL_OPTION_DESCRIPTION text Sets the picker description string shown for the custom model option.
ANTHROPIC_CUSTOM_MODEL_OPTION_NAME text Sets the display label shown for the custom model in the CLI model picker.
ANTHROPIC_CUSTOM_MODEL_OPTION_SUPPORTED_CAPABILITIES text Declares a comma-separated capability list for the custom model, enabling feature routing.
ANTHROPIC_DEFAULT_FABLE_MODEL text Overrides the model ID used for the Fable model tier.
ANTHROPIC_DEFAULT_FABLE_MODEL_DESCRIPTION text Overrides model-picker description text for a custom Fable model.
ANTHROPIC_DEFAULT_FABLE_MODEL_NAME text Overrides the display label shown for a custom Fable model in the picker.
ANTHROPIC_DEFAULT_FABLE_MODEL_SUPPORTED_CAPABILITIES text Declares supported capabilities for a custom Fable model override.
ANTHROPIC_DEFAULT_HAIKU_MODEL text Remaps the 'haiku' model alias to a custom model ID, including Bedrock fallback IDs.
ANTHROPIC_DEFAULT_HAIKU_MODEL_DESCRIPTION text Sets the description shown in the model picker for the overridden Haiku model.
ANTHROPIC_DEFAULT_HAIKU_MODEL_NAME text Sets the display label shown in the model picker for the overridden Haiku model.
ANTHROPIC_DEFAULT_HAIKU_MODEL_SUPPORTED_CAPABILITIES text Declares capabilities for the overridden Haiku model, controlling feature routing.
ANTHROPIC_DEFAULT_MODEL text
ANTHROPIC_DEFAULT_OPUS_MODEL text Remaps the 'opus' model alias to a custom model ID, including Bedrock fallback IDs.
ANTHROPIC_DEFAULT_OPUS_MODEL_DESCRIPTION text Sets the description shown in the model picker for the overridden Opus model.
ANTHROPIC_DEFAULT_OPUS_MODEL_NAME text Sets the display label shown in the model picker for the overridden Opus model.
ANTHROPIC_DEFAULT_OPUS_MODEL_SUPPORTED_CAPABILITIES text Declares feature capabilities for the custom Opus model, overriding built-in detection.
ANTHROPIC_DEFAULT_SONNET_MODEL text Overrides which model ID resolves when 'sonnet' tier is requested.
ANTHROPIC_DEFAULT_SONNET_MODEL_DESCRIPTION text Sets the display description shown in the model picker for a custom Sonnet model.
ANTHROPIC_DEFAULT_SONNET_MODEL_NAME text Sets the display name shown in the model picker for a custom Sonnet model.
ANTHROPIC_DEFAULT_SONNET_MODEL_SUPPORTED_CAPABILITIES text Declares feature capabilities for the custom Sonnet model, overriding built-in detection.
ANTHROPIC_LOG select Controls Anthropic SDK log verbosity (error / warn / info / debug).
ANTHROPIC_MODEL text Overrides the primary model entirely, replacing the default Sonnet selection.
ANTHROPIC_SMALL_FAST_MODEL text Overrides the lightweight model used for hooks, classifiers, and background utility calls.
ANTHROPIC_SMALL_FAST_MODEL_AWS_REGION text Pins the small/fast model to a specific AWS Bedrock region, independent of the main model region.
CLAUDE_CODE_ALWAYS_ENABLE_EFFORT boolean Forces effort-level controls on all models, bypassing the Opus/Sonnet-only gate.
CLAUDE_CODE_AUTO_MODE_MODEL text Overrides the model used when Claude Code operates in auto mode.
CLAUDE_CODE_BG_CLASSIFIER_MODEL text Overrides the model used for background intent-classification inference.
CLAUDE_CODE_CCR_LAZY_SUBAGENT_HYDRATE text
CLAUDE_CODE_COORDINATOR_FORCE_WORKER_INHERIT_MODEL 🆕 boolean
CLAUDE_CODE_DISABLE_ADAPTIVE_THINKING boolean Forces fixed thinking budgets on Opus/Sonnet-4-6, disabling the adaptive budget algorithm.
CLAUDE_CODE_DISABLE_FAST_MODE boolean Disables fast-mode inference, forcing the standard (slower) API path.
CLAUDE_CODE_DISABLE_LEGACY_MODEL_REMAP boolean Prevents automatic remapping of legacy model names (e.g. old Opus IDs) to current equivalents.
CLAUDE_CODE_DISABLE_NONSTREAMING_FALLBACK boolean Prevents falling back to non-streaming API calls on stream timeout or idle errors.
CLAUDE_CODE_DISABLE_THINKING boolean Eliminates extended-thinking tokens entirely by hard-disabling the thinking budget.
CLAUDE_CODE_DISABLE_UNKNOWN_MODEL_WINDOW_ENFORCEMENT boolean
CLAUDE_CODE_EFFORT_LEVEL select Sets reasoning effort for supported models: low / medium / high / xhigh; overrides per-session effort.
CLAUDE_CODE_ENABLE_APPEND_SUBAGENT_PROMPT boolean Enables appending an extra system prompt to every Task-tool subagent and its nested descendants.
CLAUDE_CODE_ENABLE_EXPERIMENTAL_ADVISOR_TOOL boolean Force-enables the experimental advisor server tool, bypassing the GrowthBook feature flag.
CLAUDE_CODE_ENABLE_GATEWAY_MODEL_DISCOVERY boolean Enables fetching available models from a gateway endpoint via /v1/models.
CLAUDE_CODE_FORK_SUBAGENT text Force-enables the fork-subagent feature, bypassing the GrowthBook rollout gate.
CLAUDE_CODE_FORWARD_SUBAGENT_TEXT text Forwards subagent text output into the parent session's output stream.
CLAUDE_CODE_MAX_CONCURRENT_SUBAGENTS number Caps how many subagents can run in parallel at once.
CLAUDE_CODE_MAX_OUTPUT_TOKENS number Caps output tokens per response, applied as a hard upper limit before the model default.
CLAUDE_CODE_MAX_SUBAGENT_SPAWN_DEPTH number Limits how many levels deep subagents can spawn further nested subagents.
CLAUDE_CODE_MAX_SUBAGENTS_PER_SESSION number Caps how many subagents can spawn within a single session.
CLAUDE_CODE_MODEL_CATALOG 🆕 text
CLAUDE_CODE_NO_MODEL_FALLBACK text Blocks automatic fallback to alternate models during outages or compaction.
CLAUDE_CODE_SUBAGENT_CACHE_EVICT text Forces prompt-cache eviction for completed subagent transcripts.
CLAUDE_CODE_SUBAGENT_MODEL select Overrides the model used for all subagent Task calls; set to 'haiku' or 'sonnet' to reduce cost.
CLAUDE_CODE_SUBAGENT_PROMPT_CACHE_TTL number
CLAUDE_CODE_THINKING_DISPLAY_UPDATES text

MCP, Plugins & Features

Flag Type Description
CLAUDE_CODE_BRIDGE_MCP_CARRIER text
CLAUDE_CODE_DISABLE_ADVISOR_TOOL boolean Removes the advisor tool definition, preventing it from appearing in the tool list.
CLAUDE_CODE_DISABLE_ATTACHMENTS boolean Strips @-mentioned files, MCP resources, and agent-mention attachments from context.
CLAUDE_CODE_DISABLE_BACKGROUND_TASKS boolean Disables background agent execution and removes the run_in_background tool parameter.
CLAUDE_CODE_DISABLE_CLAUDE_API_SKILL boolean Skips registration of the built-in claude-api skill at startup.
CLAUDE_CODE_DISABLE_CRON boolean Disables scheduled and recurring cron task tools entirely.
CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS boolean Disables all experimental beta API features, including context management and tool streaming.
CLAUDE_CODE_DISABLE_FEEDBACK_SURVEY boolean Suppresses in-session feedback survey prompts regardless of timing conditions.
CLAUDE_CODE_DISABLE_FILE_CHECKPOINTING boolean Disables file-state snapshot tracking, preventing undo/restore for file edits.
CLAUDE_CODE_DISABLE_MCP_TASK_BACKGROUND 🆕 boolean
CLAUDE_CODE_DISABLE_OFFICIAL_MARKETPLACE_AUTOINSTALL boolean Prevents automatic installation of plugins from the official marketplace on startup.
CLAUDE_CODE_DISABLE_PLUGIN_FORWARDING boolean
CLAUDE_CODE_DISABLE_POLICY_SKILLS boolean Skips loading admin/org-managed policy skills from policySettings directories.
CLAUDE_CODE_ENABLE_BACKGROUND_PLUGIN_REFRESH boolean Triggers a plugin reload in the background after an install completes, instead of blocking.
CLAUDE_CODE_ENABLE_CFC boolean Enables Claude-in-Chrome (CFC) mode, overriding the config-file default.
CLAUDE_CODE_ENABLE_FINE_GRAINED_TOOL_STREAMING boolean Enables eager input streaming on tool calls, sending partial inputs before completion.
CLAUDE_CODE_ENABLE_PROMPT_SUGGESTION boolean Controls AI-generated next-prompt suggestions; overrides the GrowthBook feature flag.
CLAUDE_CODE_ENABLE_REFRESH_MCP_TOOLS boolean Enables a command to refresh MCP tool definitions without restarting.
CLAUDE_CODE_ENABLE_SDK_FILE_CHECKPOINTING boolean Enables file-state checkpointing in SDK (headless) mode, where it is otherwise off.
CLAUDE_CODE_ENABLE_TOKEN_USAGE_ATTACHMENT boolean Appends a token-usage block to every message, showing used/total/remaining counts.
CLAUDE_CODE_ENABLE_XAA boolean Enables XAA (external agent authentication) OIDC flow for MCP server OAuth.
CLAUDE_CODE_EXTRA_BODY text Merges a JSON object into every API request body, enabling unsupported API fields.
CLAUDE_CODE_EXTRA_METADATA text Injects custom JSON fields into the metadata object sent with every API request.
CLAUDE_CODE_MAX_TOOL_USE_CONCURRENCY number Caps the number of tool calls that execute in parallel per turn; defaults to 10.
CLAUDE_CODE_MCP_ALLOWLIST_ENV boolean Passes the full host environment to MCP servers instead of a scrubbed subset.
CLAUDE_CODE_MCP_AUTO_BACKGROUND_MS number Controls how long MCP tool calls run before auto-backgrounding, in milliseconds.
CLAUDE_CODE_MCP_SERVER_NAME text Set internally by the CLI and passed to headersHelper subprocesses as the current MCP server name.
CLAUDE_CODE_MCP_SERVER_URL text Set internally by the CLI and passed to headersHelper subprocesses as the current MCP server URL.
CLAUDE_CODE_PLUGIN_ARCHIVE_URL text
CLAUDE_CODE_PLUGIN_ATTRIBUTION text
CLAUDE_CODE_PLUGIN_BINARY_ASSETS text Enables downloading platform-specific binary assets bundled with plugins.
CLAUDE_CODE_PLUGIN_CACHE_DIR text Overrides the directory where downloaded plugin archives are cached.
CLAUDE_CODE_PLUGIN_GIT_TIMEOUT_MS number Sets the timeout for git clone/pull operations when installing marketplace plugins.
CLAUDE_CODE_PLUGIN_NAME text
CLAUDE_CODE_PLUGIN_PREFER_HTTPS text Forces plugin Git clones to use HTTPS instead of SSH.
CLAUDE_CODE_PLUGIN_SEED_DIR text Adds colon-delimited directories as local plugin seed sources, bypassing marketplace downloads.
CLAUDE_CODE_PLUGIN_USE_ZIP_CACHE boolean Switches plugin storage to a ZIP-based cache, enabling faster cold installs.
CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS boolean Skips plugin MCP server discovery, dropping their tool schemas.
CLAUDE_CODE_SKIP_PLUGIN_MCP_SERVERS_EXCEPT boolean Exempts named plugins when plugin MCP server loading is skipped.
CLAUDE_CODE_SUBPROCESS_ENV_SCRUB boolean Enables environment-variable scrubbing and bubblewrap isolation for all subprocesses.
CLAUDE_CODE_SYNC_PLUGIN_INSTALL boolean Forces synchronous plugin installation, blocking the first prompt until all plugins load.
CLAUDE_CODE_SYNC_PLUGIN_INSTALL_TIMEOUT_MS number Caps how long synchronous plugin installation may block before being aborted.
CLAUDE_CODE_SYNC_PLUGINS text Controls which plugins are synced synchronously at startup, alongside install and MCP timeout settings.
CLAUDE_CODE_SYNC_PLUGINS_BUFFERED_DOWNLOAD text Forces plugin sync downloads to buffer fully instead of streaming.
CLAUDE_CODE_SYNC_PLUGINS_DOWNLOAD_STALL_MS number Overrides the stall timeout for synced plugin downloads, in milliseconds.
CLAUDE_CODE_SYNC_PLUGINS_INSTALL_TIMEOUT_MS number Caps the millisecond timeout for plugin package installation during sync.
CLAUDE_CODE_SYNC_PLUGINS_MCP_TIMEOUT_MS number Caps the millisecond timeout for MCP server startup during plugin sync.
CLAUDE_CODE_TERMINAL_MCP_TOOLS text Designates MCP tools whose text input streams to the interactive terminal.

Networking & Proxy

Flag Type Description
CLAUDE_CODE_AGENT_PROXY_GH_SHIM text Enables a gh CLI shim routing GitHub calls through the agent proxy.
CLAUDE_CODE_AGENT_PROXY_GIT_CONFIG text Appends governed agent-proxy settings to git configuration.
CLAUDE_CODE_CERT_STORE text Specifies CA certificate sources (comma-separated 'bundled' and/or 'system') for TLS validation.
CLAUDE_CODE_CLIENT_CERT text Loads a PEM client certificate from the given path to enable mTLS for outbound API requests.
CLAUDE_CODE_CLIENT_KEY text Loads a PEM private key from the given path to pair with the mTLS client certificate.
CLAUDE_CODE_CLIENT_KEY_PASSPHRASE text Supplies the passphrase to decrypt an encrypted mTLS client private key.
CLAUDE_CODE_ENABLE_PROXY_AUTH_HELPER boolean Activates the proxy auth helper subprocess that fetches credentials on demand; requires value '1'.
CLAUDE_CODE_HOST_HTTP_PROXY_PORT number Sets the HTTP proxy port forwarded into the sandbox environment for host network access.
CLAUDE_CODE_HOST_SOCKS_PROXY_PORT number Sets the SOCKS proxy port forwarded into the sandbox environment for host network access.
CLAUDE_CODE_HTTP_PROXY text Fallback HTTP proxy URL used when HTTP_PROXY/http_proxy are unset, and propagated to subprocess tooling (npm, Yarn, Docker, JVM).
CLAUDE_CODE_HTTPS_PROXY text Fallback HTTPS proxy URL used when HTTPS_PROXY/https_proxy are unset, and propagated to subprocess tooling (npm, Yarn, Docker, JVM).
CLAUDE_CODE_MESSAGING_SOCKET text
CLAUDE_CODE_PROXY_AUTH_HELPER_TTL_MS number Controls how long (ms) proxy auth credentials are cached before the helper subprocess is re-invoked.
CLAUDE_CODE_PROXY_AUTHENTICATE text Passes an authentication credential into the proxy auth helper subprocess as an environment variable.
CLAUDE_CODE_PROXY_HOST text Forwards the proxy hostname to the auth helper subprocess; auto-derived from CLAUDE_CODE_PROXY_URL when unset.
CLAUDE_CODE_PROXY_RESOLVES_HOSTS boolean Delegates DNS resolution to the proxy agent, bypassing local resolver for outbound requests.
CLAUDE_CODE_PROXY_URL text Reroutes all outbound API traffic through the specified proxy server URL.
CLAUDE_CODE_SKIP_BEDROCK_AUTH boolean Bypasses AWS Bedrock credential resolution, allowing unauthenticated or pre-signed requests.
CLAUDE_CODE_SKIP_FAST_MODE_NETWORK_ERRORS boolean Suppresses the fast-mode unavailable warning when the status check returns a network error.
CLAUDE_CODE_SKIP_FOUNDRY_AUTH boolean Bypasses Azure AD token acquisition for Microsoft Foundry, skipping DefaultAzureCredential flow.
CLAUDE_CODE_SKIP_MANTLE_AUTH boolean Bypasses AWS credential resolution for the Amazon Bedrock Mantle endpoint.
CLAUDE_CODE_SKIP_VERTEX_AUTH boolean Bypasses Google Cloud application-default credential acquisition for Vertex AI.
CLAUDE_CODE_WEBFETCH_USE_CCR_PROXY text Reroutes WebFetch traffic through the Claude Code Remote proxy.
CLAUDE_CODE_WEBSEARCH_USE_CCR_PROXY text Reroutes WebSearch traffic through the Claude Code Remote agent proxy.

Output & Display

Flag Type Description
CLAUDE_CODE_ACCESSIBILITY boolean Enables accessibility mode, suppressing animated TUI elements for screen-reader compatibility.
CLAUDE_CODE_BRIEF boolean Activates brief-only display mode, collapsing long assistant responses to head+tail summaries.
CLAUDE_CODE_BRIEF_UPLOAD boolean Routes file attachment uploads through the compact REPL bridge path instead of the standard uploader.
CLAUDE_CODE_BS_AS_CTRL_BACKSPACE text TUI input tweak: maps a plain Backspace keypress to Ctrl+Backspace (delete-previous-word) in the prompt editor. Intended for terminals — notably mintty/cygwin on Windows — that can't distinguish the two key events, letting word-delete work without a custom keymap.
CLAUDE_CODE_DECSTBM text Gates the DECSTBM (VT 'Set Top and Bottom Margins' / scroll-region) fast path in the new marlin_porch TUI renderer. When enabled, the renderer uses scroll-region escapes for partial screen updates instead of full redraws; when gated, it falls back to the safe redraw path. Emits 'DECSTBM: enabled' or 'DECSTBM: gated' at startup based on terminal capability probing.
CLAUDE_CODE_DISABLE_MOUSE boolean Disables mouse event handling in the terminal UI, preventing click and scroll capture.
CLAUDE_CODE_DISABLE_TERMINAL_TITLE boolean Prevents Claude Code from updating the terminal window or tab title during sessions.
CLAUDE_CODE_DISABLE_VIRTUAL_SCROLL boolean Disables virtualised transcript rendering, forcing all messages to render simultaneously.
CLAUDE_CODE_EAGER_FLUSH boolean Forces immediate stdout flush after each response chunk, useful for piped or cowork sessions.
CLAUDE_CODE_EXIT_AFTER_FIRST_RENDER boolean Exits the process immediately after the first UI render cycle completes, for startup testing.
CLAUDE_CODE_EXIT_AFTER_STOP_DELAY number Auto-exits the CLI after the specified idle milliseconds following the last response stop.
CLAUDE_CODE_FLEETVIEW_SIMPLE text Forces the simplified fleet-view UI instead of the full interactive session monitor.
CLAUDE_CODE_FORCE_FULLSCREEN_UPSELL boolean Forces the fullscreen-mode upsell prompt regardless of seen-count or feature-flag gate.
CLAUDE_CODE_NO_FLICKER boolean Enables the flicker-free alt-screen renderer, overriding tmux/iTerm2 detection that would disable it.
CLAUDE_CODE_QUESTION_PREVIEW_FORMAT text Sets question preview rendering format to markdown or html, overriding per-entrypoint defaults.
CLAUDE_CODE_RELAUNCH_TERMINAL_SIZE text Internal marker preserving terminal dimensions across CLI relaunch.
CLAUDE_CODE_SCROLL_SPEED number Overrides terminal scroll speed multiplier; capped at 20, defaults to 1 (3 on Windows).
CLAUDE_CODE_SIMPLE boolean Enables bare/minimal output mode, suppressing decorations and disabling auto-memory.
CLAUDE_CODE_SIMPLE_SYSTEM_PROMPT text Swaps the full system prompt for a minimal identity-only prompt, dropping all dynamic sections (alias of CLAUDE_CODE_SIMPLE).
CLAUDE_CODE_SYNTAX_HIGHLIGHT boolean Controls syntax highlighting for code blocks; set to falsy to disable, or a BAT theme name to override.
CLAUDE_CODE_TERMINAL_RECORDING text Enables terminal session recording to a file for replay or audit.

Planning & Tasks

Flag Type Description
ANTHROPIC_CONTROL_PLANE_ text
CLAUDE_CODE_BG_TASKS_REPORT_RUNNING text Reports sessions with running background tasks or teammates as still active.
CLAUDE_CODE_BLOCKING_LIMIT_OVERRIDE number Overrides the token count at which the CLI blocks and refuses further turns.
CLAUDE_CODE_DISABLE_EXPLORE_PLAN_AGENTS boolean Disables built-in Explore and Plan subagents, forcing inline exploration instead.
CLAUDE_CODE_ENABLE_TASKS boolean Forces the task-tracking system on, bypassing the feature-flag gate.
CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS boolean Enables multi-agent team spawning; multiplies token usage proportionally to team size.
CLAUDE_CODE_PLAN_MODE_REQUIRED boolean Forces plan mode before any execution, blocking agentic tool use until a plan is approved.
CLAUDE_CODE_PLAN_V text Selects the plan-mode implementation version or variant (e.g. v2).
CLAUDE_CODE_TASK_LIST_ID text Pins the task-list namespace to a specific ID, overriding the team or session default.

Provider Routing

Flag Type Description
ANTHROPIC_AWS_API_KEY text API key for the Anthropic-on-AWS platform, bypassing AWS credential chain resolution.
ANTHROPIC_AWS_BASE_URL text Reroutes Anthropic-on-AWS traffic to a custom endpoint, overriding the region-derived default.
ANTHROPIC_AWS_WORKSPACE_ID text Required workspace ID sent as the anthropic-workspace-id header for Anthropic-on-AWS requests.
ANTHROPIC_BEDROCK_BASE_URL text Reroutes AWS Bedrock traffic to a custom endpoint, overriding the region-derived default.
ANTHROPIC_BEDROCK_MANTLE_BASE_URL text Reroutes Bedrock Mantle traffic to a custom endpoint, overriding the region-derived default.
ANTHROPIC_BEDROCK_REGION_PREFIX text
ANTHROPIC_BEDROCK_SERVICE_TIER text Sets the AWS Bedrock service tier header for capacity and priority routing.
ANTHROPIC_FOUNDRY_API_KEY text API key for Microsoft Azure Foundry; mutually exclusive with Azure AD token provider.
ANTHROPIC_FOUNDRY_BASE_URL text Reroutes Microsoft Azure Foundry traffic to a custom endpoint; required if no resource name is set.
ANTHROPIC_FOUNDRY_RESOURCE text Sets the Azure Foundry resource name, used to construct the base URL when no explicit URL is provided.
ANTHROPIC_VERTEX_BASE_URL text Reroutes Google Vertex AI traffic to a custom endpoint, overriding the region-derived default.
ANTHROPIC_VERTEX_PROJECT_ID text Specifies the GCP project for Vertex AI when no GCLOUD_PROJECT env var is present.
CLAUDE_CODE_DISABLE_BEDROCK_CONTENT_TYPE_DEFAULT boolean
CLAUDE_CODE_DISABLE_BEDROCK_CONTENT_TYPE_GUARD boolean Suppresses the Bedrock streaming content-type check for misbehaving gateways or proxies.
CLAUDE_CODE_PROVIDER_MANAGED_BY_HOST boolean Signals that the host environment manages provider config, stripping auth env vars from subprocesses.
CLAUDE_CODE_USE_ANTHROPIC_AWS boolean Routes all API calls through Anthropic's AWS platform (distinct from native Bedrock).
CLAUDE_CODE_USE_BEDROCK boolean Routes all API calls through AWS Bedrock, disabling first-party error reporting.
CLAUDE_CODE_USE_FOUNDRY boolean Routes all API calls through Microsoft Azure Foundry, disabling first-party error reporting.
CLAUDE_CODE_USE_MANTLE boolean Routes all API calls through Bedrock Mantle managed-access layer.
CLAUDE_CODE_USE_VERTEX boolean Routes all API calls through Google Vertex AI, disabling first-party error reporting.

Remote & Containers

Flag Type Description
CLAUDE_CODE_CONTAINER_ID text Sets the container ID forwarded as the x-claude-remote-container-id request header.
CLAUDE_CODE_ENABLE_REMOTE_RECAP boolean Enables recap generation for remote (CCR) Claude Code sessions.
CLAUDE_CODE_ENVIRONMENT_KIND select Declares the environment type (e.g. bridge, byoc, anthropic_cloud), affecting transport and control-flow.
CLAUDE_CODE_ENVIRONMENT_RUNNER_VERSION text Forwards a runner version string as the x-environment-runner-version header on remote connections.
CLAUDE_CODE_HOST_PLATFORM text Overrides the detected host OS platform (win32, darwin, linux) for environment fingerprinting.
CLAUDE_CODE_MOCK_REMOTE_SETTINGS text Injects mock remote-settings payload, bypassing live remote-config fetch.
CLAUDE_CODE_REMOTE boolean Marks the session as remote, enabling disk persistence of credentials for subprocess access.
CLAUDE_CODE_REMOTE_ENVIRONMENT_TYPE text Forwards the remote environment type in telemetry and enables brief-upload mode for attachments.
CLAUDE_CODE_REMOTE_HERMETIC_MODE text Restricts remote sessions to SDK MCP servers, dropping external ones.
CLAUDE_CODE_REMOTE_RAW_EVENTS_FILE text Redirects raw remote-container events to a file path for offline inspection.
CLAUDE_CODE_REMOTE_SEND_KEEPALIVES boolean Enables periodic keepalive heartbeats on the remote session connection to prevent idle disconnects.
CLAUDE_CODE_REMOTE_SESSION_ID text Sets the remote session ID forwarded as the x-claude-remote-session-id request header.
CLAUDE_CODE_REMOTE_SESSION_ORIGIN text Tags a remote session with its originating host or service for tracking.
CLAUDE_CODE_REMOTE_SESSION_UUID text
CLAUDE_CODE_REMOTE_SETTINGS_PATH text Overrides remote settings with a local file path, bypassing the settings API fetch.
CLAUDE_CODE_REMOTE_SETTINGS_POLL_MS number Controls polling interval in milliseconds for remote-settings refresh.
CLAUDE_CODE_REMOTE_TOOLS_POLICY 🆕 text
CLAUDE_CODE_REMOTE_TOOLS_SERVE text
CLAUDE_CODE_REMOTE_TOOLS_SESSION_CHANNEL text
CLAUDE_CODE_WORKSPACE_HOST_PATHS text Pipe-separated host path mappings attached to telemetry events as workspace.host_paths.

Sandbox & Security

Flag Type Description
CLAUDE_CODE_ADDITIONAL_PROTECTION boolean Adds the x-anthropic-additional-protection header to all API requests for enhanced server-side checks.
CLAUDE_CODE_BASH_SANDBOX_SHOW_INDICATOR boolean Renames the Bash tool to SandboxedBash in the UI when sandbox mode is active.
CLAUDE_CODE_BUBBLEWRAP text Enables Bubblewrap sandbox isolation on Linux, blocking root bypass of permission checks.
CLAUDE_CODE_FORCE_SANDBOX boolean Forces sandbox mode on for bridge/remote sessions regardless of the sandbox option passed.

Search & File System

Flag Type Description
CLAUDE_CODE_FILE_READ_MAX_OUTPUT_TOKENS number Caps the token output from file-read operations. Default 25,000.
CLAUDE_CODE_GLOB_HIDDEN boolean Forces glob searches to include dotfiles and hidden directories.
CLAUDE_CODE_GLOB_NO_IGNORE boolean Bypasses .gitignore rules during glob file searches.
CLAUDE_CODE_GLOB_TIMEOUT_SECONDS number Overrides the default ripgrep glob timeout in seconds.
CLAUDE_CODE_MAX_WEB_SEARCHES_PER_SESSION number Caps how many WebSearch tool calls a session may issue.
CLAUDE_CODE_MAX_WEB_SEARCHES_PER_SESSIONN number

Session & Lifecycle

Flag Type Description
CLAUDE_CODE_ACTION text Signals that Claude Code is running as a GitHub Actions workflow step.
CLAUDE_CODE_BASH_OUTPUT_AUDIENCE_NOTE text
CLAUDE_CODE_DISABLE_BG_SHELL_PRESSURE_REAP boolean Disables killing idle background shells under memory pressure.
CLAUDE_CODE_DONT_INHERIT_ENV boolean Strips the parent shell's environment variables from subprocess execution.
CLAUDE_CODE_ENTRYPOINT select Identifies the launch surface (cli, sdk-cli, mcp, claude-desktop) used in version strings and telemetry.
CLAUDE_CODE_GIT_BASH_PATH text Overrides the auto-detected Git Bash executable path on Windows.
CLAUDE_CODE_MAX_RETRIES number Overrides the default maximum retry count for failed Anthropic API calls.
CLAUDE_CODE_NEW_INIT boolean Switches the /init command to generate multiple scoped CLAUDE.md files instead of one.
CLAUDE_CODE_PERFORCE_MODE boolean Enables Perforce VCS mode, injecting p4 checkout instructions into the system context.
CLAUDE_CODE_POWERSHELL_RESPECT_EXECUTION_POLICY text Prevents bypassing Windows PowerShell execution policy when running commands.
CLAUDE_CODE_PWSH_PARSE_TIMEOUT_MS number Overrides the timeout for PowerShell command parsing and result classification.
CLAUDE_CODE_SESSIONEND_HOOKS_TIMEOUT_MS number Caps the maximum wait time for session-end hooks before the process exits.
CLAUDE_CODE_SHELL text Forces Claude Code to use a specific bash or zsh binary instead of auto-detecting.
CLAUDE_CODE_SHELL_PREFIX text Prepends a custom command string before every shell invocation, including MCP stdio servers.
CLAUDE_CODE_TEST_NO_GIT_BASH text Disables git-bash detection in tests, simulating a non-git-bash environment.
CLAUDE_CODE_TMPDIR text Overrides the temporary directory used for prompt files and shell snapshots.

Teams & Collaboration

Flag Type Description
CLAUDE_CODE_BASE_REF text Sets the git ref used as the merge-base for diff and PR review operations.
CLAUDE_CODE_BASE_REFS text Provides a map of repo-path → base-ref pairs for multi-checkout diff operations.
CLAUDE_CODE_COWORK_FRAME_ARTIFACTS text
CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMSV 🆕 text
CLAUDE_CODE_IS_COWORK boolean Enables cowork collaboration mode, triggering eager cache flushes and shared settings.
CLAUDE_CODE_SSE_PORT number Pins the IDE SSE port used for auto-connecting to a running editor extension.
CLAUDE_CODE_TEAM_TEARDOWN_PARK_TIMEOUT_MS number Caps how long team teardown waits for parked teammates; default ten seconds.
CLAUDE_CODE_TEAMMATE_COMMAND text Overrides the shell command used to spawn teammate sub-agents in a swarm.
CLAUDE_CODE_USE_COWORK_PLUGINS boolean Switches the plugin and settings file paths to the cowork-specific variants.
CLAUDE_CODE_WORKER_EPOCH text Supplies the worker epoch integer required to register a CCR bridge worker session.

Telemetry & Observability

Flag Type Description
ANTHROPIC_TELEMETRY_GROUP text
CLAUDE_CODE_BYOC_ENABLE_DATADOG boolean Enables Datadog telemetry in BYOC environment mode.
CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS number Overrides the Datadog log-batch flush interval in milliseconds. Default 15,000.
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC boolean Blocks all non-essential outbound network calls, including telemetry and analytics.
CLAUDE_CODE_EMIT_SESSION_STATE_EVENTS boolean Enables emission of session-state-changed events on the SDK output stream.
CLAUDE_CODE_EMIT_TOOL_USE_SUMMARIES boolean Enables tool-use summary emission for SDK consumers tracking tool activity.
CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL boolean Enables in-session feedback survey events sent via OpenTelemetry.
CLAUDE_CODE_ENABLE_TELEMETRY boolean Activates third-party OpenTelemetry trace and metric export for the session.
CLAUDE_CODE_ENHANCED_TELEMETRY_BETA boolean Opts into the enhanced beta tracing pipeline alongside ENABLE_ENHANCED_TELEMETRY_BETA.
CLAUDE_CODE_GB_DISK_CACHE_WHEN_TELEMETRY_OFF text Enables GrowthBook feature-flag disk caching even when telemetry is disabled.
CLAUDE_CODE_OTEL_CONTENT_MAX_LENGTH number Caps character length of content captured in OpenTelemetry span attributes.
CLAUDE_CODE_OTEL_DIAG_STDERR text Enables OpenTelemetry diagnostic logging to stderr for debugging exporters.
CLAUDE_CODE_OTEL_FLUSH_TIMEOUT_MS number Caps the time allotted for OpenTelemetry to flush all spans before process exit. Default 5,000ms.
CLAUDE_CODE_OTEL_HEADERS_HELPER_DEBOUNCE_MS number Sets the debounce window for re-executing the OTel headers helper script.
CLAUDE_CODE_OTEL_SHUTDOWN_TIMEOUT_MS number Caps the time allotted for graceful OpenTelemetry provider shutdown. Default 2,000ms.
CLAUDE_CODE_TAGS text Attaches arbitrary tag strings to the session metadata sent with each API request.

Terminal Multiplexer

Flag Type Description
CLAUDE_CODE_TMUX_PREFIX text Records the active tmux prefix key for display in the detach hint UI.
CLAUDE_CODE_TMUX_PREFIX_CONFLICTS boolean Signals that the tmux prefix conflicts with a Claude keybinding, adjusting the detach hint.
CLAUDE_CODE_TMUX_SESSION text Stores the name of the active tmux session for display in the status bar.
CLAUDE_CODE_TMUX_TRUECOLOR boolean Prevents Claude from downgrading color depth to 256 colours inside a tmux session.

Uncategorised

Flag Type Description
ANTHROPIC_API_HOST text
ANTHROPIC_ASSETS_HOST text
ANTHROPIC_CONFIG_DIR text Overrides the Anthropic config directory root, bypassing the default XDG_CONFIG_HOME/APPDATA-derived path used to locate profiles and credentials.
ANTHROPIC_ENVIRONMENT_ID text Identifies the managed-agents environment; injected into worker containers by the orchestrator.
ANTHROPIC_ENVIRONMENT_KEY text Authentication key for the EnvironmentWorker API, scoped to a specific managed environment.
ANTHROPIC_FEDERATION_RULE_ID text Sets the OIDC federation rule ID for token exchange; profile-level authentication.federation_rule_id takes precedence.
ANTHROPIC_GOOGLE_CLOUD_BASE_URL text Reroutes Claude Platform on Google Cloud requests to a custom API endpoint.
ANTHROPIC_GOOGLE_CLOUD_LOCATION text Sets the Google Cloud region for Claude Platform requests, overriding CLOUD_ML_REGION.
ANTHROPIC_GOOGLE_CLOUD_PROJECT text Sets the GCP project ID used to authenticate Claude Platform on Google Cloud calls.
ANTHROPIC_GOOGLE_CLOUD_WORKSPACE_ID text Scopes Claude Platform on Google Cloud requests to a specific workspace.
ANTHROPIC_ORGANIZATION_ID text Pins the organization ID used for OIDC federation auth when config.organization_id is not set in the profile.
ANTHROPIC_SCOPE text Sets the OAuth scope sent during token exchange, used as a fallback when authentication.scope is not defined in the profile.
ANTHROPIC_SERVICE_ACCOUNT_ID text Service account ID exchanged at the OIDC federation token endpoint alongside the identity token to mint an access token.
ANTHROPIC_SESSION_ID text Identifies the active session inside a managed-agents worker container.
ANTHROPIC_TIER_NAMES text
ANTHROPIC_WEBHOOK_SIGNING_KEY text Webhook secret for verifying incoming Anthropic webhook payload signatures.
ANTHROPIC_WORK_ID text Identifies the work-queue item being processed inside a managed-agents worker container.
ANTHROPIC_WORKSPACE_ID text Scopes OIDC federation authentication to a specific Anthropic workspace.
CLAUDE_CODE_ACT_DONT_REDERIVE text Skips re-deriving the agentic action plan between turns, trading plan freshness for speed.
CLAUDE_CODE_ADOPT_UNDERIVABLE_PARKED_PERMISSION text
CLAUDE_CODE_AGENT text Labels the current session with its parent agent name during concurrent-session registration.
CLAUDE_CODE_AGENT_RULE_DISABLED text Bun-runtime sentinel set by the Claude Code binary so that tools the CLI shells out to (Bun, and sibling coding agents like Cursor) recognise an AI agent is driving the session and skip interactive 'agent auto-rule' heuristics. Not a user-tunable feature — set automatically at process start.
CLAUDE_CODE_AGENT_VIEW_RELAUNCH text Internal marker consumed on relaunch to restore agent view state.
CLAUDE_CODE_ALT_SCREEN_FULL_REPAINT text Forces full repaints in alt-screen mode instead of incremental diff-based updates.
CLAUDE_CODE_ALTGR_AS_TEXT text Forces AltGr keypresses to insert literal text instead of shortcuts.
CLAUDE_CODE_AMBER_ASTROLABE text Enables an internal experiment gate, overriding its remote-config default.
CLAUDE_CODE_API_BASE_URLB text
CLAUDE_CODE_ARG_KEY_SHAPE 🆕 text
CLAUDE_CODE_ARTIFACT text Enables Artifact publishing support for the current session.
CLAUDE_CODE_ARTIFACT_ASSET_BASE_URL text
CLAUDE_CODE_ARTIFACT_ASSETS text
CLAUDE_CODE_ARTIFACT_AUTO_OPEN text Controls automatic browser opening of freshly published artifacts.
CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK text
CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK_FIXED text
CLAUDE_CODE_ARTIFACT_COMMENT_RESPONDER text
CLAUDE_CODE_ARTIFACT_COMMENTS text
CLAUDE_CODE_ARTIFACT_COMMENTS_AUTOREACT text
CLAUDE_CODE_ARTIFACT_DB text
CLAUDE_CODE_ARTIFACT_DELETE text
CLAUDE_CODE_ARTIFACT_LIVE_BASE_URL text
CLAUDE_CODE_ARTIFACT_PRESENCE 🆕 text
CLAUDE_CODE_ARTIFACT_PREVIEW text
CLAUDE_CODE_ARTIFACT_ROOM text
CLAUDE_CODE_ARTIFACT_SYNC_BASE_URL text
CLAUDE_CODE_ARTIFACT_TYPE_CATALOG text
CLAUDE_CODE_ARTIFACT_TYPE_CLOUD_CREATE text
CLAUDE_CODE_ARTIFACT_TYPES text
CLAUDE_CODE_ARTIFACT_VERIFY text
CLAUDE_CODE_ARTIFACT_VIEWER_BASE_URL text
CLAUDE_CODE_ARTIFACTS_API_BASE_URL text Reroutes artifact upload traffic to a custom API endpoint.
CLAUDE_CODE_ASSUME_FIRST_PARTY_BASE_URL text Treats a custom base URL as first-party Anthropic infrastructure.
CLAUDE_CODE_AUTO_BACKGROUND_TIMEOUT_MS number Caps foreground wait before bash commands auto-background; minimum two seconds.
CLAUDE_CODE_AUTO_BACKGROUND_WORKER_CHECKIN_SECONDS 🆕 text
CLAUDE_CODE_AUTO_MODE_ARTIFACT_CONSENT_RULE text
CLAUDE_CODE_AUTO_MODE_CLASSIFY_ASK_USER_QUESTION text
CLAUDE_CODE_AUTO_MODE_CLASSIFY_EDITS text Enables classifier checks catching edits that circumvent deny rules.
CLAUDE_CODE_AUTO_MODE_EDIT_REMOVAL text Overrides the GrowthBook gate controlling auto-mode edit-removal visibility.
CLAUDE_CODE_AUTO_MODE_EDIT_REMOVAL_CAP text Caps how much auto-mode edits may remove before extra visibility triggers.
CLAUDE_CODE_AUTO_MODE_EXTERNAL_PERMISSIONS text Controls which external tool permissions are granted automatically in auto mode.
CLAUDE_CODE_AUTO_MODE_GIT_STATUS text Injects git status into the auto-mode classifier prompt.
CLAUDE_CODE_AUTO_MODE_GIT_STATUS_LIMIT text Caps git-status lines injected into auto-mode context.
CLAUDE_CODE_AUTO_MODE_GIT_STATUS_UPLOADS text Enables uploading git status snapshots in auto mode.
CLAUDE_CODE_AUTO_MODE_OUTCOME_CODES text Overrides the GrowthBook gate controlling auto-mode permission outcome-code visibility.
CLAUDE_CODE_AUTO_MODE_REPO_VISIBILITY text Enables repo visibility lookups when auto mode evaluates permission safety.
CLAUDE_CODE_AUTO_MODE_TEMPERATURE text Overrides sampling temperature for the auto-mode classifier model.
CLAUDE_CODE_AWS_CHAIN_RESOLVE_TIMEOUT_MS number Caps AWS default-chain credential resolution time; defaults to 60 seconds.
CLAUDE_CODE_BASALT_COVE text Force-enables the experimental basalt_cove per-model prompt behaviour gate.
CLAUDE_CODE_BENCH_LIVE_COUNTS text Enables live token/turn counters in the terminal UI for benchmarking.
CLAUDE_CODE_BISON_CAIRN text Overrides an internal experiment gate's default, forcing it on when set.
CLAUDE_CODE_BREEZY_HORIZON text
CLAUDE_CODE_BRIDGE_OWNER_ACCOUNT_UUID 🆕 text
CLAUDE_CODE_BRIDGE_OWNER_ORG_UUID 🆕 text
CLAUDE_CODE_BRIDGE_PROMPT_SHA text
CLAUDE_CODE_BRIDGE_SESSION_ID text Set internally to link child processes to their bridge session.
CLAUDE_CODE_CARVED_SLATE 🆕 text
CLAUDE_CODE_CHILD_SESSION text Internal marker identifying tmux child sessions spawned by Claude Code.
CLAUDE_CODE_CLASSIFIER_SUMMARY text Forces the post-turn classifier into LLM mode when truthy, heuristic when falsy.
CLAUDE_CODE_CLOUD_SESSION_ID text
CLAUDE_CODE_COORDINATOR_EXTRA_TOOLS text Whitelists extra tools past the coordinator agent's tool filter.
CLAUDE_CODE_COORDINATOR_MODE text Switches the instance into coordinator role, loading a multi-agent orchestration system prompt.
CLAUDE_CODE_COORDINATOR_WORKER_CHECKIN_SECONDS text
CLAUDE_CODE_DAEMON_COLD_START text Overrides daemon cold-start behaviour — accepts 'transient' or 'ask'.
CLAUDE_CODE_DAPPER_LAGOON 🆕 text
CLAUDE_CODE_DD_ERROR_TRACKING_FLUSH_INTERVAL_MS number Controls the flush interval in milliseconds for Datadog error-tracking batches.
CLAUDE_CODE_DEV_RAW_CHANGELOG_URL text Overrides the raw changelog URL fetched at startup, pointing to a dev endpoint.
CLAUDE_CODE_DIR_SYNC_DISABLE_ANCHORING boolean
CLAUDE_CODE_DIR_SYNC_ENGINE text
CLAUDE_CODE_DIR_SYNC_FFWD text
CLAUDE_CODE_DIR_SYNC_GIT text
CLAUDE_CODE_DIR_SYNC_STREAM 🆕 text
CLAUDE_CODE_DISABLE_ADMIN_ENV_UNION boolean
CLAUDE_CODE_DISABLE_AGENT_VIEW boolean Disables the agent view including background daemon and /background command.
CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN boolean Disables alternate terminal screen buffer, preventing fullscreen TUI mode.
CLAUDE_CODE_DISABLE_ARTIFACT boolean Disables the Artifact tool, removing its schema from requests.
CLAUDE_CODE_DISABLE_BG_EXIT_HANDOFF boolean Disables handing off running background tasks when exiting.
CLAUDE_CODE_DISABLE_BUNDLED_SKILLS boolean Strips bundled skills and workflows, hiding built-in slash commands from the model.
CLAUDE_CODE_DISABLE_CLAUDE_CODE_SKILL boolean Disables the built-in slash command for Claude Code documentation.
CLAUDE_CODE_DISABLE_DIR_SYNC boolean
CLAUDE_CODE_DISABLE_EXPLORE_INHERIT_CAP boolean Disables the model cap on the Explore search subagent, letting it inherit the parent model.
CLAUDE_CODE_DISABLE_HOME_SETTINGS_SEED boolean
CLAUDE_CODE_DISABLE_HOOK_FORWARDING boolean
CLAUDE_CODE_DISABLE_LAUNCH_COMPOSER boolean Disables the launch composer UI at startup.
CLAUDE_CODE_DISABLE_MOUSE_CLICKS boolean Disables mouse click handling while keeping scroll support.
CLAUDE_CODE_DISABLE_MOUSE_CLICKSC boolean
CLAUDE_CODE_DISABLE_MTLS_RELOAD_ON_STALE_CONNECTION boolean
CLAUDE_CODE_DISABLE_NESTED_USER_REPAIR boolean
CLAUDE_CODE_DISABLE_NOTIFICATION_PRESENCE_CHECK boolean Sends push notifications even when the user appears present.
CLAUDE_CODE_DISABLE_PERMISSION_PROMPT_NOTIFY_HOOKS boolean
CLAUDE_CODE_DISABLE_REFUSAL_FALLBACK boolean Disables automatic retry or alternative handling when a model refuses a request.
CLAUDE_CODE_DISABLE_VITALS_EMITTER boolean
CLAUDE_CODE_DISABLE_WORKFLOWS boolean Disables the Workflows feature entirely, removing workflow instructions from the system prompt.
CLAUDE_CODE_DISABLE_WORKING_SYNC boolean Disables working-file sync for remote SDK sessions.
CLAUDE_CODE_DISPATCH_V text Forces a dispatch-version identifier onto first-party Claude API requests.
CLAUDE_CODE_DOWNLOAD_DEADLINE_MS_FOR_TESTING text Testing-only override for the update download deadline in milliseconds.
CLAUDE_CODE_EDITOR_CODELIVERY 🆕 text
CLAUDE_CODE_ENABLE_AUTO_MODE boolean Enables automatic model-selection mode, allowing the CLI to pick the optimal Claude model.
CLAUDE_CODE_ENABLE_DESIGN_SYNC boolean Enables syncing Claude Design assets, requiring a separate design login.
CLAUDE_CODE_ENABLE_LAUNCH_COMPOSER boolean Enables the experimental launch composer startup interface.
CLAUDE_CODE_ENABLE_MENU_KIND_LANES boolean Enables grouped kind lanes in slash-command menu listings.
CLAUDE_CODE_ENABLE_NARRATION boolean
CLAUDE_CODE_ENABLE_TODO_TOOLS boolean
CLAUDE_CODE_EVAL_ALLOW_ARTIFACT_PUBLISH text
CLAUDE_CODE_EVAL_ARTIFACT_STUB_DIR text
CLAUDE_CODE_EVAL_CONFINED 🆕 text
CLAUDE_CODE_EVAL_INTERVIEW_SESSION text
CLAUDE_CODE_EXPERIMENTAL_OBSERVER_AGENTS text Enables background observer agents that watch active agents.
CLAUDE_CODE_FEDERATION_CACHE_DIR text
CLAUDE_CODE_FLEET_PAST_SESSIONS text Enables past-session history in the fleet sessions view.
CLAUDE_CODE_FORCE_BRIDGE boolean Forces the REPL bridge transport path regardless of environment detection.
CLAUDE_CODE_FORCE_FIRST_LAUNCH boolean
CLAUDE_CODE_FORCE_MID_CONVERSATION_SYSTEM boolean Forces mid-conversation system prompt re-injection on all model versions.
CLAUDE_CODE_FORCE_RC_LONG_TURN_NUDGE boolean Forces the remote-control long-turn nudge to fire immediately and always.
CLAUDE_CODE_FORCE_STRIKETHROUGH boolean Forces strikethrough rendering regardless of terminal capability detection.
CLAUDE_CODE_FORCE_SYNC_OUTPUT boolean Forces synchronous terminal output rendering, bypassing async buffering.
CLAUDE_CODE_FORCE_TIP_ID boolean Forces a specific onboarding tip to display, bypassing seen-state checks.
CLAUDE_CODE_FORCE_WINDOWS_CREDMAN boolean Forces credential storage and retrieval through Windows Credential Manager.
CLAUDE_CODE_GAULT_KESTREL text Env-var override that force-enables an internal feature experiment, bypassing remote and local config checks.
CLAUDE_CODE_GB_BASE_URL text Overrides the GrowthBook feature-flag server base URL for experimentation.
CLAUDE_CODE_GB_REFRESH_INTERVAL_MS number Controls how often GrowthBook feature flags are re-fetched in milliseconds.
CLAUDE_CODE_GENTLE_PARASOL 🆕 text
CLAUDE_CODE_GOAL_CHECKIN_MINUTES text
CLAUDE_CODE_GORSE_PLOVER text Force-enables an internal experimental gate, bypassing its normal remote rollout check.
CLAUDE_CODE_GZIP_CCR_REQUEST_BODIES text
CLAUDE_CODE_GZIP_REQUEST_BODIES text Compresses API request bodies with gzip, cutting upload bandwidth only.
CLAUDE_CODE_HANDBACK_PROVENANCE text
CLAUDE_CODE_HARBOR_KITE text
CLAUDE_CODE_HARBOR_KITE_CLOUD text
CLAUDE_CODE_HARBOR_KITE_PACING_OFF text
CLAUDE_CODE_HOLD_REPORT_PARK_AT_INIT text
CLAUDE_CODE_HOLD_UNANSWERED_PARKED_PERMISSION text
CLAUDE_CODE_HOME_SEED_HOLD_TIMEOUT_MS number
CLAUDE_CODE_HOME_SEED_VERDICT_TIMEOUT_MS number
CLAUDE_CODE_HOOKS_SAME_THREAD text
CLAUDE_CODE_HOST_ 🆕 text
CLAUDE_CODE_HOST_CREDS_FILE text Points to a host-supplied credentials file for provider auth.
CLAUDE_CODE_HOVER_REST text
CLAUDE_CODE_INTRO_FRAME text
CLAUDE_CODE_INVOKED_SKILLS text Internal runtime register tracking which skills have fired and their per-invoke costs.
CLAUDE_CODE_JUNIPER_SUNDIAL text Overrides how many turns occur between periodic maintenance cycles.
CLAUDE_CODE_KB_COHESION_FIXES text Enables cohesion patches for knowledge-base content injected into the system prompt.
CLAUDE_CODE_LANTERN_PRISM text Force-enables the codenamed lantern-prism experiment, bypassing its GrowthBook gate.
CLAUDE_CODE_LARCH_CISTERN text Overrides an internal feature-flag experiment, letting users opt in early via the environment.
CLAUDE_CODE_LEGACY_BUNDLE text
CLAUDE_CODE_LOOP_KEEPALIVE text Enables keepalive pings in the autonomous loop to prevent idle-timeout disconnection.
CLAUDE_CODE_LOOP_PERSISTENT text Enables persistent autonomous loop mode, continuing across blocked decisions.
CLAUDE_CODE_LUMINOUS_WHISTLE 🆕 text
CLAUDE_CODE_MANAGED_SETTINGS_PATH text Loads org-managed settings from a custom path, overriding user-level config.
CLAUDE_CODE_MARKETPLACE_NAME text
CLAUDE_CODE_MARKETPLACE_URL text
CLAUDE_CODE_MAX_TURNS number Caps the maximum number of agentic turns before the session halts.
CLAUDE_CODE_METRICS_ENDPOINT text Reroutes usage and telemetry metrics to a custom endpoint URL.
CLAUDE_CODE_MOCK_TRIAL text Simulates a trial subscription state, bypassing live entitlement checks.
CLAUDE_CODE_NANKEEN_KESTREL text Force-enables a Windows-only sandboxing feature flag, overriding its experiment rollout gate.
CLAUDE_CODE_NATIVE_CURSOR text Enables native terminal cursor when accessibility mode is not already active.
CLAUDE_CODE_NEW_INITA text
CLAUDE_CODE_PACKAGE_MANAGER_AUTO_UPDATE text Enables automatic Claude Code self-update via Homebrew or winget.
CLAUDE_CODE_PARCHMENT_FERN text
CLAUDE_CODE_PARKED_PERMISSION_WAIT_MS number Controls how long parked permission requests wait before proceeding, in milliseconds.
CLAUDE_CODE_PARKED_STOP_RETIRES text
CLAUDE_CODE_PEWTER_OWL text Activates the Pewter Owl experiment cohort, enabling its associated feature variant.
CLAUDE_CODE_PEWTER_OWL_TOOL text Overrides the GrowthBook gate for the experimental pewter-owl tool.
CLAUDE_CODE_POLICY_HELPER_PS text
CLAUDE_CODE_POLICY_HELPER_PSMODULEPATH text
CLAUDE_CODE_POLL_EVENTS text
CLAUDE_CODE_POWERUP_ONBOARDING text Forces the power-user onboarding experiment arm: banner or step.
CLAUDE_CODE_PRINT_BG_WAIT_CEILING_MS number Caps background-task wait in print mode; 0 waits indefinitely.
CLAUDE_CODE_PRINT_ENGINE_LOOP text
CLAUDE_CODE_PROACTIVE text Enables Kairos proactive/assistant mode for idle-triggered suggestions.
CLAUDE_CODE_PROCESS_WRAPPER text Reroutes background and daemon session self-exec through a custom launcher path.
CLAUDE_CODE_PROJECT_DIR_NAME text
CLAUDE_CODE_PROMPT_CACHE_TTL number
CLAUDE_CODE_PROPAGATE_TRACEPARENT text Forwards a W3C traceparent header on outbound API requests for distributed trace correlation.
CLAUDE_CODE_RATE_LIMIT_TIER text Pins the OAuth rate-limit tier passed to forked background sessions.
CLAUDE_CODE_RC_PERMISSION_NUDGE text Overrides timing and frequency of the remote-control permission nudge prompt.
CLAUDE_CODE_REFUSAL_FALLBACK_CATCH_ALL text Enables catch-all fallback-model rerouting when the API refuses a request.
CLAUDE_CODE_RELAUNCH_ 🆕 text
CLAUDE_CODE_REPL text Forces REPL mode on or off, overriding the GrowthBook feature-flag default.
CLAUDE_CODE_REPORT_FINDINGS text Forces the structured findings-report tool during code review runs.
CLAUDE_CODE_RESTRICTED 🆕 text
CLAUDE_CODE_RETIRE_UNANSWERED_PARKED_PERMISSION text
CLAUDE_CODE_RETRY_WATCHDOG text Enables a retry watchdog on Linux remote entrypoints that forces retries on ECONNRESET/EPIPE and other transient network errors.
CLAUDE_CODE_SAFE_MODE text Disables all customizations (CLAUDE.md, hooks, skills) for troubleshooting broken configs.
CLAUDE_CODE_SDK_ 🆕 text
CLAUDE_CODE_SEND_FEEDBACK text Disables the in-app bug/feedback relay when set false; otherwise defers to experiment gating.
CLAUDE_CODE_SESSION_ 🆕 text
CLAUDE_CODE_SESSION_ID text Internal session identifier propagated to child processes for telemetry.
CLAUDE_CODE_SESSION_KIND text Marks the session as 'bg', 'daemon', or 'daemon-worker' for forked children.
CLAUDE_CODE_SESSION_LOG text Path to the per-session log file; set when forking background sessions.
CLAUDE_CODE_SESSION_NAME text Human-readable name attached to a forked background session.
CLAUDE_CODE_SILENT_TURN_REMINDER text
CLAUDE_CODE_SILENT_TURN_REMINDER_TEXT text
CLAUDE_CODE_SILENT_TURN_REMINDER_TURNS text
CLAUDE_CODE_SKILL_NAME text Overrides the default slash command name for the Claude Code docs skill.
CLAUDE_CODE_SKILL_PROPOSALS text
CLAUDE_CODE_SKIP_ 🆕 boolean
CLAUDE_CODE_SKIP_AWS_CRED_CACHE boolean Bypasses cached AWS credentials when authenticating to Bedrock.
CLAUDE_CODE_SKIP_FAST_MODE_ORG_CHECKA 🆕 boolean
CLAUDE_CODE_SKIP_HFI_VERSION_CHECK boolean Skips HFI protocol version compatibility check on startup.
CLAUDE_CODE_SKIP_PROJECT_BACKFILL boolean Disables automatic backfill of project metadata at session start.
CLAUDE_CODE_SKIP_REPO_UPLOAD boolean Prevents repository content from being uploaded to remote context store.
CLAUDE_CODE_SPAWN_TIMESTAMP_MS number Records the Unix millisecond timestamp at process spawn for startup-latency telemetry.
CLAUDE_CODE_STOP_HOOK_BLOCK_CAP text Raises the maximum number of times a stop hook can block turn completion.
CLAUDE_CODE_SUBSCRIPTION_TYPE text Pins the OAuth subscription tier passed to forked background sessions.
CLAUDE_CODE_SUPERVISED text Marks session as supervised, causing clean exit on uncaught exceptions.
CLAUDE_CODE_SUPPRESS_SESSION_ATTRIBUTION text Strips or replaces session attribution metadata injected into context by the CLI.
CLAUDE_CODE_SYNC_SESSION_REFS text Synchronizes session reference identifiers across bridged or resumed sessions.
CLAUDE_CODE_SYNC_SKILLS text Triggers skill synchronisation at session start, pulling skill definitions from a remote source.
CLAUDE_CODE_SYNC_SKILLS_INSTALL_TIMEOUT_MS number Caps skill installation time during workspace sync; default thirty seconds.
CLAUDE_CODE_SYNC_SKILLS_WAIT_TIMEOUT_MS number Caps the startup wait for skill sync; session proceeds without skills once exceeded.
CLAUDE_CODE_SYSTEM_PROMPT_GB_FEATURE text Overrides the remote-mode system prompt via a GrowthBook feature-flag key.
CLAUDE_CODE_TAG_ISMETA_MESSAGES text Tags specified message types as isMeta to exclude them from context.
CLAUDE_CODE_TEE_SDK_STDOUT text Mirrors SDK bridge stdout to stderr for debugging in bridge environment mode.
CLAUDE_CODE_TEST_ALLOW_REAL_NETWORK text
CLAUDE_CODE_TEST_FIXTURES_ROOT text Points the VCR fixture loader to a custom root directory for test recordings.
CLAUDE_CODE_TEST_FORCE_DENY boolean Forces all permission checks to deny — used in test harnesses only.
CLAUDE_CODE_TEST_NO_PWSH text Disables PowerShell detection in tests, simulating a non-Windows environment.
CLAUDE_CODE_THISTLE_GREBE text Selects the behavioral steering mode: default nudging, no nudges, or counter-steer.
CLAUDE_CODE_THRIFTY_SONIC text
CLAUDE_CODE_TICKLISH_WHISPER text
CLAUDE_CODE_TICKLISH_WHISPER_TIMEOUT_MS number
CLAUDE_CODE_TOASTY_THIMBLE text
CLAUDE_CODE_TODO_REMINDER_MODE text Controls per-turn todo reminder nudges; set off to silence them.
CLAUDE_CODE_TOTAL_TOKENS_REMINDER text Controls the token-usage reminder mode injected into prompts.
CLAUDE_CODE_TOTAL_TOKENS_REMINDER_AFTER_USER_TURN text Resets total-tokens reminder budget at the start of each user turn.
CLAUDE_CODE_TOTAL_TOKENS_REMINDER_BUDGET text Sets starting token budget for padded-countdown usage reminders.
CLAUDE_CODE_TRANSCRIPT_LOCAL_GC text Enables local garbage collection of old session transcript files on disk.
CLAUDE_CODE_TRIGGER_ID text Set internally to record which scheduled trigger spawned the remote session.
CLAUDE_CODE_TUI_JUST_SWITCHED text Internal marker set by the CLI when relaunching into a new TUI mode such as fullscreen.
CLAUDE_CODE_TUI_TRIAL text
CLAUDE_CODE_TURN_UPDATES text
CLAUDE_CODE_TWO_STAGE_CLASSIFIER text Enables two-stage intent classification pipeline for permission decisions.
CLAUDE_CODE_ULTRAREVIEW_QUOTA_FIXTURE text
CLAUDE_CODE_USE_ANTHROPIC_GOOGLE_CLOUD text Reroutes model traffic through Anthropic models on Google Cloud instead of the direct API.
CLAUDE_CODE_USE_GATEWAY text Routes inference traffic through an Anthropic LLM gateway instead of the direct API.
CLAUDE_CODE_USE_POWERSHELL_TOOL boolean Enables the PowerShell tool as a Bash alternative; auto-enabled on Windows if no deny rule exists.
CLAUDE_CODE_USER_DIALOG_TIMEOUT_MS number Overrides how long user dialogs wait before timing out, in milliseconds.
CLAUDE_CODE_VERSION text Exposes the current CLI version string to policy helper subprocesses.
CLAUDE_CODE_VOICE_FORWARD_INTERIMS_TYPED text Enables typed interim transcription results from the voice stream connection.
CLAUDE_CODE_WALNUT_SPIRE text Overrides the GrowthBook gate for the experimental walnut-spire feature.
CLAUDE_CODE_WEB_FETCH_AGENT text
CLAUDE_CODE_WEBFETCH_CACHE_TTL_MS number
CLAUDE_CODE_WILLOW_TERN text
CLAUDE_CODE_WORKFLOW_LAUNCH_SHA text
CLAUDE_CODE_WORKFLOW_PREFIX_STAGGER_MS number
CLAUDE_CODE_WORKFLOW_PROMPT_PROVENANCE text
CLAUDE_CODE_WORKFLOW_SIZE_WARNING_AGENTS text Overrides the agent-count threshold that triggers workflow size warnings.
CLAUDE_CODE_WORKFLOW_SIZE_WARNING_TOKENS text Overrides token threshold that triggers workflow size warnings.
CLAUDE_CODE_WORKFLOWS text Enables the Workflows feature and specifies which workflow definitions are active.

Deprecated

These flags were present in earlier versions but have been removed.

Flag Removed in
ANTHROPIC_BASE_URLT 2.1.246
ANTHROPIC_BEDROCK_MANTLE_API_KEY 2.1.210
ANTHROPIC_BEDROCK_MANTLE_BASE_URLA 2.1.239
ANTHROPIC_BEDROCK_SERVICE_TIERW 2.1.246
ANTHROPIC_CONFIG_DIRW 2.1.246
ANTHROPIC_CUSTOM_HEADERSI 2.1.215
ANTHROPIC_CUSTOM_HEADERSIR 2.1.224
ANTHROPIC_CUSTOM_MODEL_OPTION_DESCRIPTIONM 2.1.215
ANTHROPIC_CUSTOM_MODEL_OPTION_NAMEI 2.1.246
ANTHROPIC_CUSTOM_MODEL_OPTION_SUPPORTED_CAPABILITIESW 2.1.246
ANTHROPIC_DEFAULT_FABLE_MODEL_NAMEW 2.1.246
ANTHROPIC_DEFAULT_FABLE_MODELH 2.1.246
ANTHROPIC_DEFAULT_HAIKU_MODEL_DESCRIPTIONI 2.1.224
ANTHROPIC_DEFAULT_HAIKU_MODEL_DESCRIPTIONU 2.1.222
ANTHROPIC_DEFAULT_HAIKU_MODEL_NAMEA 2.1.246
ANTHROPIC_DEFAULT_OPUS_MODEL_NAMER 2.1.245
ANTHROPIC_DEFAULT_SONNET_MODEL_DESCRIPTION_ 2.1.246
ANTHROPIC_FEDERATION_RULE_IDW 2.1.246
ANTHROPIC_FOUNDRY_API_KEYZ 2.1.224
ANTHROPIC_FOUNDRY_AUTH_TOKEN 2.1.182
ANTHROPIC_IDENTITY_TOKENP 2.1.227
ANTHROPIC_ORGANIZATION_IDW 2.1.227
ANTHROPIC_ORGANIZATION_IDZ 2.1.224
ANTHROPIC_SERVICE_ACCOUNT_IDW 2.1.246
ANTHROPIC_VERTEX_BASE_URLC 2.1.222
ANTHROPIC_VERTEX_BASE_URLZ 2.1.233
ANTHROPIC_WORK_SECRET 2.1.251
CLAUDE_CODE_ACCESSIBILITYZ 2.1.237
CLAUDE_CODE_ADDITIONAL_PROTECTIONG 2.1.245
CLAUDE_CODE_AGENT_COST_STEER 2.1.162
CLAUDE_CODE_AGENT_LIST_IN_MESSAGES 2.1.178
CLAUDE_CODE_AGENT_NAME 2.1.162
CLAUDE_CODE_ALDER_WICKET 2.1.218
CLAUDE_CODE_API_BASE_URLI 2.1.223
CLAUDE_CODE_API_KEY_FILE_DESCRIPTORS 2.1.233
CLAUDE_CODE_ARTIFACT_ASSET_BASE_URLQ 2.1.233
CLAUDE_CODE_ARTIFACT_DIRECT_UPLOAD 2.1.239
CLAUDE_CODE_ARTIFACT_MCP 2.1.174
CLAUDE_CODE_ASSUME_FIRST_PARTY_BASE_URLC 2.1.251
CLAUDE_CODE_ASSUME_FIRST_PARTY_BASE_URLI 2.1.215
CLAUDE_CODE_AUTO_MODE_CLASSIFIER_QUEUE 2.1.221
CLAUDE_CODE_AUTO_MODE_SIBLING_CONTEXT 2.1.221
CLAUDE_CODE_AWS_CHAIN_RESOLVE_TIMEOUT_MSIF 2.1.223
CLAUDE_CODE_AWS_CHAIN_RESOLVE_TIMEOUT_MSIZ 2.1.222
CLAUDE_CODE_BG_TASKS_REPORT_RUNNINGR 2.1.233
CLAUDE_CODE_BLOCKING_LIMIT_OVERRIDEQ 2.1.233
CLAUDE_CODE_BRIEF_UPLOADI 2.1.223
CLAUDE_CODE_CHILD_SESSIONH 2.1.222
CLAUDE_CODE_CLASSIFIER_SUMMARYY 2.1.246
CLAUDE_CODE_COLD_COMPACTI 2.1.215
CLAUDE_CODE_COLD_COMPACTP 2.1.245
CLAUDE_CODE_COMMIT_LOG 2.1.227
CLAUDE_CODE_CONNECT_TIMEOUT_MS 2.1.186
CLAUDE_CODE_CONTAINER_IDI 2.1.223
CLAUDE_CODE_COORDINATOR_MODEV 2.1.246
CLAUDE_CODE_CUSTOM_OAUTH_URLW 2.1.246
CLAUDE_CODE_DESIGN_OAUTH_CLIENT_IDS 2.1.237
CLAUDE_CODE_DIR_SYNC_ARCHIVE 2.1.246
CLAUDE_CODE_DIR_SYNC_OVERLAY 2.1.245
CLAUDE_CODE_DISABLE_ADMIN_ENV_UNIONR 2.1.233
CLAUDE_CODE_DISABLE_AGENTS_FLEET 2.1.162
CLAUDE_CODE_DISABLE_BUNDLED_SKILLSD 2.1.246
CLAUDE_CODE_DISABLE_CLAUDE_CODE_SKILLO 2.1.246
CLAUDE_CODE_DISABLE_CRONI 2.1.231
CLAUDE_CODE_DISABLE_FEEDBACK_SURVEYS 2.1.233
CLAUDE_CODE_DISABLE_MOUSEW 2.1.222
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFICI 2.1.224
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFICODE_TOTA 2.1.246
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFICONFIG 2.1.246
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFICW 2.1.246
CLAUDE_CODE_DISABLE_NONSTREAMING_FALLBACKY 2.1.215
CLAUDE_CODE_DISABLE_PERMISSION_PROMPT_NOTIFY_HOOKSD 2.1.237
CLAUDE_CODE_DISABLE_TERMINAL_TITLEC 2.1.245
CLAUDE_CODE_DISABLE_THINKINGW 2.1.246
CLAUDE_CODE_DISABLE_UNKNOWN_MODEL_WINDOW_ENFORCEMENTP 2.1.246
CLAUDE_CODE_EFFORT_LEVELI 2.1.227
CLAUDE_CODE_EMIT_TOOL_USE_SUMMARIESQ 2.1.233
CLAUDE_CODE_ENABLE_APPEND_SUBAGENT_PROMPTH 2.1.223
CLAUDE_CODE_ENABLE_APPEND_SUBAGENT_PROMPTO 2.1.239
CLAUDE_CODE_ENABLE_APPEND_SUBAGENT_PROMPTS 2.1.215
CLAUDE_CODE_ENABLE_BACKGROUND_PLUGIN_REFRESHW 2.1.246
CLAUDE_CODE_ENABLE_DESIGN_MCP 2.1.206
CLAUDE_CODE_ENABLE_FINE_GRAINED_TOOL_STREAMINGW 2.1.246
CLAUDE_CODE_ENABLE_GATEWAY_MODEL_DISCOVERYT 2.1.246
CLAUDE_CODE_ENABLE_LAUNCH_COMPOSERM 2.1.216
CLAUDE_CODE_ENABLE_LAUNCH_COMPOSERT 2.1.237
CLAUDE_CODE_ENABLE_MORNING_BRIEF 2.1.214
CLAUDE_CODE_ENABLE_OPUS_ 2.1.159
CLAUDE_CODE_ENABLE_PROMPT_SUGGESTIONW 2.1.246
CLAUDE_CODE_ENABLE_SDK_FILE_CHECKPOINTINGD 2.1.215
CLAUDE_CODE_ENABLE_SDK_FILE_CHECKPOINTINGH 2.1.222
CLAUDE_CODE_ENABLE_SDK_FILE_CHECKPOINTINGT 2.1.238
CLAUDE_CODE_ENABLE_TASKSI 2.1.224
CLAUDE_CODE_ENABLE_TASKSP 2.1.239
CLAUDE_CODE_ENABLE_TOKEN_USAGE_ATTACHMENTG 2.1.222
CLAUDE_CODE_ENHANCED_TELEMETRY_BETAT 2.1.233
CLAUDE_CODE_ENTRYPOINTK 2.1.246
CLAUDE_CODE_EVAL_ 2.1.246
CLAUDE_CODE_EXIT_AFTER_FIRST_RENDERT 2.1.233
CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMSW 2.1.246
CLAUDE_CODE_EXPERIMENTAL_OBSERVER_AGENTSI 2.1.223
CLAUDE_CODE_FABLE_BRIDGE_DIALOG_TIMEOUT_MS 2.1.237
CLAUDE_CODE_FORCE_BRIDGEI 2.1.215
CLAUDE_CODE_FORCE_FULL_LOGO 2.1.246
CLAUDE_CODE_FORCE_FULLSCREEN_UPSELLQ 2.1.233
CLAUDE_CODE_FORCE_MEMORY_WRITE_SURVEY 2.1.162
CLAUDE_CODE_FORCE_MID_CONVERSATION_SYSTEMB 2.1.239
CLAUDE_CODE_FORCE_MID_CONVERSATION_SYSTEMC 2.1.222
CLAUDE_CODE_FORCE_MID_CONVERSATION_SYSTEML 2.1.246
CLAUDE_CODE_FORCE_SESSION_PERSISTENCE 2.1.170
CLAUDE_CODE_FORCE_TIP_IDI 2.1.224
CLAUDE_CODE_FORK_SUBAGENT_DEFAULT_ON 2.1.163
CLAUDE_CODE_FORK_SUBAGENTB 2.1.222
CLAUDE_CODE_FRAME 2.1.172
CLAUDE_CODE_FRAME_AUTO_OPEN 2.1.172
CLAUDE_CODE_FRAME_MCP 2.1.172
CLAUDE_CODE_FRAME_MODE 2.1.163
CLAUDE_CODE_GAULT_KESTRELD 2.1.223
CLAUDE_CODE_GIT_BASH_PATHQ 2.1.233
CLAUDE_CODE_GORSE_PLOVERI 2.1.227
CLAUDE_CODE_GORSE_PLOVERW 2.1.246
CLAUDE_CODE_HERON_TALLOW 2.1.231
CLAUDE_CODE_HERON_TALLOWI 2.1.231
CLAUDE_CODE_HERON_TALLOWIY 2.1.223
CLAUDE_CODE_HIDE_CWDW 2.1.246
CLAUDE_CODE_HOST_AUTH_REFRESH_TIMEOUT_MSI 2.1.222
CLAUDE_CODE_HOST_AUTH_REFRESH_TIMEOUT_MSW 2.1.246
CLAUDE_CODE_HOST_PLATFORME 2.1.237
CLAUDE_CODE_INVESTIGATE_FIRST 2.1.223
CLAUDE_CODE_JSONL_TRANSCRIPT 2.1.245
CLAUDE_CODE_LANTERN_PRISM_ 2.1.238
CLAUDE_CODE_LANTERN_PRISMU 2.1.223
CLAUDE_CODE_LARCH_CISTERNU 2.1.223
CLAUDE_CODE_MARL_CORMORANT 2.1.224
CLAUDE_CODE_MAX_CONTEXT_TOKENSW 2.1.246
CLAUDE_CODE_MAX_TOOL_USE_CONCURRENCYM 2.1.246
CLAUDE_CODE_MAX_WEB_SEARCHES_PER_SESSIONI 2.1.231
CLAUDE_CODE_MEMORY_PUSH_DELETE_MODET 2.1.233
CLAUDE_CODE_MEMORY_WRITE_SURVEY_TIMEOUT_MS 2.1.162
CLAUDE_CODE_MID_CONVERSATION_SYSTEM 2.1.159
CLAUDE_CODE_MORNING_BRIEF_PROMPT 2.1.214
CLAUDE_CODE_NATIVE_CURSORL 2.1.215
CLAUDE_CODE_OAUTH_SCOPESI 2.1.215
CLAUDE_CODE_OAUTH_SCOPESP 2.1.216
CLAUDE_CODE_OAUTH_SCOPESPU 2.1.245
CLAUDE_CODE_OAUTH_TOKEN_FILE_DESCRIPTORTOR 2.1.246
CLAUDE_CODE_OPUS_ 2.1.212
CLAUDE_CODE_OTEL_DIAG_STDERRT 2.1.202
CLAUDE_CODE_OTEL_DIAG_STDERRW 2.1.246
CLAUDE_CODE_OTEL_FLUSH_TIMEOUT_MSE 2.1.246
CLAUDE_CODE_OVERRIDE_DATES 2.1.224
CLAUDE_CODE_OVERRIDE_DATEW 2.1.227
CLAUDE_CODE_OWNERSHIP_FRAME 2.1.216
CLAUDE_CODE_PARKED_PERMISSION_WAIT_MSE 2.1.246
CLAUDE_CODE_PERFETTO_TRACEY 2.1.162
CLAUDE_CODE_PERFORCE_MODEA 2.1.233
CLAUDE_CODE_PERFORCE_MODEG 2.1.231
CLAUDE_CODE_PERFORCE_MODER 2.1.224
CLAUDE_CODE_PLAN_ARTIFACTS 2.1.238
CLAUDE_CODE_PLAN_MODE_INTERVIEW_PHASE 2.1.159
CLAUDE_CODE_POST_FOR_SESSION_INGRESS_V 2.1.221
CLAUDE_CODE_PROMPT_CACHE_TTLW 2.1.246
CLAUDE_CODE_PROVIDER_MANAGED_BY_HOSTW 2.1.246
CLAUDE_CODE_PROXY_AUTH_HELPER_TTL_MSW 2.1.246
CLAUDE_CODE_QUESTION_PREVIEW_FORMATR 2.1.233
CLAUDE_CODE_REMOTE_SETTINGS_POLL_MSF 2.1.233
CLAUDE_CODE_RESUME_INTERRUPTED_TURNR 2.1.233
CLAUDE_CODE_RESUME_PROMPTJ 2.1.227
CLAUDE_CODE_SABLE_THRUSH 2.1.251
CLAUDE_CODE_SABLE_THRUSHO 2.1.246
CLAUDE_CODE_SCROLL_SPEEDI 2.1.223
CLAUDE_CODE_SCROLL_SPEEDIA 2.1.223
CLAUDE_CODE_SCROLL_SPEEDIZ 2.1.231
CLAUDE_CODE_SESSION_KINDI 2.1.222
CLAUDE_CODE_SESSION_KINDIA 2.1.224
CLAUDE_CODE_SESSION_NAMEI 2.1.223
CLAUDE_CODE_SHELL_PREFIXI 2.1.246
CLAUDE_CODE_SHELLN 2.1.216
CLAUDE_CODE_SHOJI_ENGINE 2.1.203
CLAUDE_CODE_SKILL_DESC_REFRAME 2.1.216
CLAUDE_CODE_SKILL_DESCRIPTION 2.1.214
CLAUDE_CODE_SKIP_ANTHROPIC_GOOGLE_CLOUD_AUTHW 2.1.246
CLAUDE_CODE_SKIP_FAST_MODE_NETWORK_ERRORSI 2.1.223
CLAUDE_CODE_SKIP_MANTLE_AUTHW 2.1.246
CLAUDE_CODE_SKIP_VERTEX_AUTHL 2.1.246
CLAUDE_CODE_SUBAGENT_PROMPT_CACHE_TTLJ 2.1.246
CLAUDE_CODE_SUPPRESS_SESSION_ATTRIBUTIONI 2.1.215
CLAUDE_CODE_SYNC_PLUGIN_INSTALLL 2.1.246
CLAUDE_CODE_SYNC_PLUGINSID 2.1.231
CLAUDE_CODE_SYNC_PLUGINSIH 2.1.238
CLAUDE_CODE_TASK_LIST_IDP 2.1.239
CLAUDE_CODE_TEAM_NAME 2.1.162
CLAUDE_CODE_TEAM_ONBOARDING 2.1.181
CLAUDE_CODE_TEAM_TEARDOWN_PARK_TIMEOUT_MSE 2.1.224
CLAUDE_CODE_TEAM_TEARDOWN_PARK_TIMEOUT_MSM 2.1.231
CLAUDE_CODE_TEST_NO_PWSHI 2.1.224
CLAUDE_CODE_THISTLE_GREBEJ 2.1.238
CLAUDE_CODE_THRIFTY_SONICG 2.1.223
CLAUDE_CODE_TMUX_SESSIONI 2.1.231
CLAUDE_CODE_TOTAL_TOKENS_REMINDER_BUDGETI 2.1.224
CLAUDE_CODE_TUI_JUST_SWITCHEDD 2.1.246
CLAUDE_CODE_ULTRAREVIEW_PREFLIGHT_FIXTURE_ 2.1.239
CLAUDE_CODE_ULTRAREVIEW_PREFLIGHT_FIXTUREH 2.1.231
CLAUDE_CODE_ULTRAREVIEW_PREFLIGHT_FIXTUREV 2.1.227
CLAUDE_CODE_USE_CCR_V 2.1.203
CLAUDE_CODE_USE_NATIVE_FILE_SEARCH 2.1.159
CLAUDE_CODE_USE_VERTEXW 2.1.246
CLAUDE_CODE_VELVET_FALCON 2.1.174
CLAUDE_CODE_VERIFY_PROMPT 2.1.206
CLAUDE_CODE_VOICE_FORWARD_INTERIMS_TYPEDI 2.1.224
CLAUDE_CODE_VOICE_FORWARD_INTERIMS_TYPEDP 2.1.216
CLAUDE_CODE_WEBFETCH_PROXY_PATH 2.1.169
CLAUDE_CODE_WORKER_EPOCHI 2.1.224
CLAUDE_CODE_WORKFLOW_SIZE_WARNING_AGENTSI 2.1.231
CLAUDE_CODE_WORKFLOW_SIZE_WARNING_AGENTSP 2.1.239
CLAUDE_CODE_WORKFLOW_SIZE_WARNING_TOKENSI 2.1.224
CLAUDE_CODE_WORKFLOW_SIZE_WARNING_TOKENSP 2.1.216
CLAUDE_CODE_WORKFLOW_SIZE_WARNING_TOKENSPU 2.1.245

This file is auto-generated from flags/manifest.json by scripts/generate-readme.js. Do not edit manually.

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Interactive config generator for Claude Code environment flags. Tune sliders, save presets, copy your settings.json

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