Analyzed: March 31, 2026 leak snapshot
This page is generated from a source scan of process.env.* references. Presence here means the snapshot references the variable somewhere. It does not always mean the variable is public, stable, or documented by Anthropic.

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Method

This inventory comes from a repository-wide scan of process.env.[NAME] references under src/. Because the raw set is large, the page groups variables by subsystem. If a variable name is visible but its behavior was not fully audited, the safest interpretation is “implementation detail referenced in this snapshot”.

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Providers and auth

ANTHROPIC_API_KEY, ANTHROPIC_AUTH_TOKEN, ANTHROPIC_BASE_URL, ANTHROPIC_BEDROCK_BASE_URL, ANTHROPIC_CUSTOM_HEADERS, ANTHROPIC_FOUNDRY_API_KEY, ANTHROPIC_FOUNDRY_BASE_URL, ANTHROPIC_FOUNDRY_RESOURCE, ANTHROPIC_MODEL, ANTHROPIC_SMALL_FAST_MODEL, ANTHROPIC_SMALL_FAST_MODEL_AWS_REGION, ANTHROPIC_UNIX_SOCKET, ANTHROPIC_VERTEX_PROJECT_ID, AWS_BEARER_TOKEN_BEDROCK, AWS_DEFAULT_REGION, AWS_REGION, BEDROCK_BASE_URL, CLOUD_ML_REGION, GOOGLE_CLOUD_PROJECT, VERTEX_BASE_URL, USE_LOCAL_OAUTH, USE_STAGING_OAUTH, CLAUDE_CODE_SKIP_BEDROCK_AUTH, CLAUDE_CODE_SKIP_FOUNDRY_AUTH, CLAUDE_CODE_SKIP_VERTEX_AUTH, CLAUDE_CODE_USE_BEDROCK, CLAUDE_CODE_USE_FOUNDRY, CLAUDE_CODE_USE_VERTEX

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Model selection and thinking

ANTHROPIC_DEFAULT_HAIKU_MODEL, ANTHROPIC_DEFAULT_HAIKU_MODEL_DESCRIPTION, ANTHROPIC_DEFAULT_HAIKU_MODEL_NAME, ANTHROPIC_DEFAULT_OPUS_MODEL, ANTHROPIC_DEFAULT_OPUS_MODEL_DESCRIPTION, ANTHROPIC_DEFAULT_OPUS_MODEL_NAME, ANTHROPIC_DEFAULT_SONNET_MODEL, ANTHROPIC_DEFAULT_SONNET_MODEL_DESCRIPTION, ANTHROPIC_DEFAULT_SONNET_MODEL_NAME, ANTHROPIC_CUSTOM_MODEL_OPTION, ANTHROPIC_CUSTOM_MODEL_OPTION_DESCRIPTION, ANTHROPIC_CUSTOM_MODEL_OPTION_NAME, CLAUDE_CODE_ALWAYS_ENABLE_EFFORT, CLAUDE_CODE_DISABLE_ADAPTIVE_THINKING, CLAUDE_CODE_DISABLE_LEGACY_MODEL_REMAP, CLAUDE_CODE_DISABLE_THINKING, CLAUDE_CODE_EFFORT_LEVEL, CLAUDE_CODE_MAX_CONTEXT_TOKENS, CLAUDE_CODE_MAX_OUTPUT_TOKENS, CLAUDE_CODE_SUBAGENT_MODEL, DISABLE_INTERLEAVED_THINKING, FALLBACK_FOR_ALL_PRIMARY_MODELS, MAX_THINKING_TOKENS

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Permissions, shell, sandbox, and safety

ALLOW_ANT_COMPUTER_USE_MCP, BASH_MAX_OUTPUT_LENGTH, CLAUDE_BASH_MAINTAIN_PROJECT_WORKING_DIR, CLAUDE_CHROME_PERMISSION_MODE, CLAUDE_CODE_AUTO_MODE_MODEL, CLAUDE_CODE_BASH_SANDBOX_SHOW_INDICATOR, CLAUDE_CODE_DISABLE_ADVISOR_TOOL, CLAUDE_CODE_DISABLE_COMMAND_INJECTION_CHECK, CLAUDE_CODE_DISABLE_MOUSE, CLAUDE_CODE_DISABLE_MOUSE_CLICKS, CLAUDE_CODE_DUMP_AUTO_MODE, CLAUDE_CODE_PWSH_PARSE_TIMEOUT_MS, CLAUDE_CODE_SHELL, CLAUDE_CODE_SHELL_PREFIX, CLAUDE_CODE_TMPDIR, CLAUDE_CODE_TWO_STAGE_CLASSIFIER, CLAUDE_CODE_UNATTENDED_RETRY, CLAUDE_JOB_DIR, ENABLE_LSP_TOOL, IS_SANDBOX, MCP_TIMEOUT, MCP_TOOL_TIMEOUT, PWD, SHELL, USER_TYPE

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Session, persistence, and transcript handling

CLAUDE_AFTER_LAST_COMPACT, CLAUDE_AUTO_BACKGROUND_TASKS, CLAUDE_AUTOCOMPACT_PCT_OVERRIDE, CLAUDE_CODE_AUTO_COMPACT_WINDOW, CLAUDE_CODE_DISABLE_PRECOMPACT_SKIP, CLAUDE_CODE_EMIT_SESSION_STATE_EVENTS, CLAUDE_CODE_JSONL_TRANSCRIPT, CLAUDE_CODE_REMOTE, CLAUDE_CODE_REMOTE_MEMORY_DIR, CLAUDE_CODE_REMOTE_SEND_KEEPALIVES, CLAUDE_CODE_REMOTE_SESSION_ID, CLAUDE_CODE_RESUME_INTERRUPTED_TURN, CLAUDE_CODE_SAVE_HOOK_ADDITIONAL_CONTEXT, CLAUDE_CODE_SESSION_ACCESS_TOKEN, CLAUDE_CODE_SESSION_ID, CLAUDE_CODE_SESSION_KIND, CLAUDE_CODE_SESSION_LOG, CLAUDE_CODE_SESSION_NAME, ENABLE_SESSION_PERSISTENCE, TEST_ENABLE_SESSION_PERSISTENCE

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Settings, plugins, skills, and MCP config

CLAUDE_CODE_ADDITIONAL_DIRECTORIES_CLAUDE_MD, CLAUDE_CODE_DISABLE_OFFICIAL_MARKETPLACE_AUTOINSTALL, CLAUDE_CODE_ENABLE_XAA, CLAUDE_CODE_MANAGED_SETTINGS_PATH, CLAUDE_CODE_MCP_INSTR_DELTA, CLAUDE_CODE_PLUGIN_CACHE_DIR, CLAUDE_CODE_PLUGIN_GIT_TIMEOUT_MS, CLAUDE_CODE_PLUGIN_SEED_DIR, CLAUDE_CODE_PLUGIN_USE_ZIP_CACHE, CLAUDE_CODE_SYNC_PLUGIN_INSTALL, CLAUDE_CODE_SYNC_PLUGIN_INSTALL_TIMEOUT_MS, CLAUDE_CODE_USE_COWORK_PLUGINS, ENABLE_CLAUDEAI_MCP_SERVERS, ENABLE_MCP_LARGE_OUTPUT_FILES, MCP_CLIENT_SECRET, MCP_OAUTH_CALLBACK_PORT, MCP_OAUTH_CLIENT_METADATA_URL, MCP_REMOTE_SERVER_CONNECTION_BATCH_SIZE, MCP_SERVER_CONNECTION_BATCH_SIZE, MCP_XAA_IDP_CLIENT_SECRET, SLASH_COMMAND_TOOL_CHAR_BUDGET, TEAM_MEMORY_SYNC_URL

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UI and terminal behavior

ALACRITTY_LOG, BAT_THEME, CLAUDE_CODE_ACCESSIBILITY, CLAUDE_CODE_DISABLE_MESSAGE_ACTIONS, CLAUDE_CODE_DISABLE_TERMINAL_TITLE, CLAUDE_CODE_DISABLE_VIRTUAL_SCROLL, CLAUDE_CODE_FORCE_FULL_LOGO, CLAUDE_CODE_IDLE_THRESHOLD_MINUTES, CLAUDE_CODE_IDLE_TOKEN_THRESHOLD, CLAUDE_CODE_NO_FLICKER, CLAUDE_CODE_QUESTION_PREVIEW_FORMAT, CLAUDE_CODE_SCROLL_SPEED, CLAUDE_CODE_STREAMLINED_OUTPUT, CLAUDE_CODE_SYNTAX_HIGHLIGHT, CLAUDE_CODE_TMUX_PREFIX, CLAUDE_CODE_TMUX_PREFIX_CONFLICTS, CLAUDE_CODE_TMUX_SESSION, CLAUDE_CODE_TMUX_TRUECOLOR, COLORTERM, KITTY_WINDOW_ID, MSYSTEM, TERM, TERM_PROGRAM, TERM_PROGRAM_VERSION, TMUX, TMUX_PANE, VTE_VERSION, WT_SESSION, ZED_TERM

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IDE, bridge, and remote execution

CLAUDE_BRIDGE_BASE_URL, CLAUDE_BRIDGE_OAUTH_TOKEN, CLAUDE_BRIDGE_SESSION_INGRESS_URL, CLAUDE_BRIDGE_USE_CCR_V2, CLAUDE_CODE_AUTO_CONNECT_IDE, CLAUDE_CODE_CCR_MIRROR, CLAUDE_CODE_ENVIRONMENT_KIND, CLAUDE_CODE_ENVIRONMENT_RUNNER_VERSION, CLAUDE_CODE_IDE_HOST_OVERRIDE, CLAUDE_CODE_IDE_SKIP_AUTO_INSTALL, CLAUDE_CODE_IDE_SKIP_VALID_CHECK, CLAUDE_CODE_POST_FOR_SESSION_INGRESS_V2, CLAUDE_CODE_PROVIDER_MANAGED_BY_HOST, CLAUDE_CODE_PROXY_RESOLVES_HOSTS, CLAUDE_CODE_REPL, CLAUDE_CODE_SSE_PORT, CLAUDE_CODE_USE_CCR_V2, CLAUDE_CODE_WEBSOCKET_AUTH_FILE_DESCRIPTOR, CLAUDE_SESSION_INGRESS_TOKEN_FILE, LOCAL_BRIDGE, SESSION_INGRESS_URL

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Telemetry and diagnostics

ANT_CLAUDE_CODE_METRICS_ENDPOINT, ANT_OTEL_EXPORTER_OTLP_ENDPOINT, ANT_OTEL_EXPORTER_OTLP_HEADERS, ANT_OTEL_EXPORTER_OTLP_PROTOCOL, ANT_OTEL_LOGS_EXPORTER, ANT_OTEL_METRICS_EXPORTER, ANT_OTEL_TRACES_EXPORTER, BETA_TRACING_ENDPOINT, CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS, CLAUDE_CODE_DEBUG_LOG_LEVEL, CLAUDE_CODE_DEBUG_LOGS_DIR, CLAUDE_CODE_DIAGNOSTICS_FILE, CLAUDE_CODE_ENABLE_TELEMETRY, CLAUDE_CODE_ENHANCED_TELEMETRY_BETA, CLAUDE_CODE_OTEL_FLUSH_TIMEOUT_MS, CLAUDE_CODE_OTEL_HEADERS_HELPER_DEBOUNCE_MS, CLAUDE_CODE_OTEL_SHUTDOWN_TIMEOUT_MS, CLAUDE_CODE_PERFETTO_TRACE, CLAUDE_CODE_PERFETTO_WRITE_INTERVAL_S, CLAUDE_DEBUG, DISABLE_ERROR_REPORTING, DISABLE_TELEMETRY, ENABLE_BETA_TRACING_DETAILED, ENABLE_ENHANCED_TELEMETRY_BETA, OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_EXPORTER_OTLP_HEADERS, OTEL_EXPORTER_OTLP_LOGS_PROTOCOL, OTEL_EXPORTER_OTLP_METRICS_PROTOCOL, OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE, OTEL_EXPORTER_OTLP_PROTOCOL, OTEL_EXPORTER_OTLP_TRACES_PROTOCOL, OTEL_LOG_TOOL_CONTENT, OTEL_LOG_TOOL_DETAILS, OTEL_LOG_USER_PROMPTS, OTEL_LOGS_EXPORT_INTERVAL, OTEL_LOGS_EXPORTER, OTEL_METRIC_EXPORT_INTERVAL, OTEL_METRICS_EXPORTER, OTEL_TRACES_EXPORT_INTERVAL, OTEL_TRACES_EXPORTER

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Product flags and feature toggles

CLAUDE_CODE_COORDINATOR_MODE, CLAUDE_CODE_DISABLE_BACKGROUND_TASKS, CLAUDE_CODE_DISABLE_CRON, CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS, CLAUDE_CODE_ENABLE_CFC, CLAUDE_CODE_ENABLE_FINE_GRAINED_TOOL_STREAMING, CLAUDE_CODE_ENABLE_PROMPT_SUGGESTION, CLAUDE_CODE_ENABLE_TASKS, CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS, CLAUDE_CODE_PLAN_MODE_INTERVIEW_PHASE, CLAUDE_CODE_PLAN_MODE_REQUIRED, CLAUDE_CODE_PLAN_V2_AGENT_COUNT, CLAUDE_CODE_PLAN_V2_EXPLORE_AGENT_COUNT, CLAUDE_CODE_PROACTIVE, CLAUDE_CODE_SIMPLE, CLAUDE_CODE_VERIFY_PLAN, DISABLE_AUTO_COMPACT, DISABLE_COMPACT, ENABLE_TOOL_SEARCH

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Voice

VOICE_STREAM_BASE_URL

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Operating environment and host detection

Examples referenced throughout the snapshot include APPDATA, CI, GITHUB_ACTIONS, HOME, HTTP_PROXY, HTTPS_PROXY, LANG, LC_ALL, LC_TIME, LOCALAPPDATA, NODE_ENV, NODE_EXTRA_CA_CERTS, NODE_OPTIONS, NO_PROXY, PATH, TEMP, TMPDIR, USER, USERNAME, USERPROFILE, VISUAL, EDITOR, XDG_CONFIG_HOME, WSL_DISTRO_NAME, and many deployment-host markers such as VERCEL, NETLIFY, CF_PAGES, RENDER, DYNO, and K_SERVICE.

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Reading this safely

The presence of a variable in source means one of four things:
  • user-facing configuration
  • provider/auth plumbing
  • internal debugging or diagnostics
  • feature-flag or rollout scaffolding
Do not assume all names are intended as supported public configuration knobs.