Every feature flag, and where it lived
385 of 2,081 feature flags One tick per build on this box, oldest on the left. A gap is a build the feature flag was not in.
State
This account
Anonymous
Compiled default
A is the one account this site reads, N the anonymous baseline, D what the release compiled in. 1,143 of 2,081 gates have been read at all: a run only records the gates its own release wrote about. Claude Code evaluates its gates on Anthropic's servers, so a reading of off can be a rollout this account sits outside of, and none of it says anything about your install. How to read these.
○ not in v2.1.308, ◇ we found no documentation describing it.
Feature flagWhat it doesSpan v2.1.138 → v2.1.308 Status Reading
tengu_amber_creek ◇ Accepting fullscreen now runs as a trial, and two crashed launches disable it on that machine.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.239
tengu_amber_ferry ◇ A new mode, off unless switched on remotely, lets remote sessions start preparing a message's attachments before its files finish downloadingv2.1.286 → v2.1.308 ◆in the build AND v2.1.292
tengu_amber_kestrel ◇ Subagent launching gets a nesting-depth cap, a bypassable concurrency cap, and new teammate/model-inherit rulesv2.1.217 → v2.1.308 ◆in the build AND v2.1.284
tengu_amber_lark ◇ The usage report's analysis now calculates the most sessions running at the same time, adds per-day and per-week detail, and blanks some recommendationsv2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.305
tengu_amber_lynx ◇ The feedback dialog still skips one extra request when a server-side flag is on, the same as in the previous buildv2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.299
tengu_amber_packet ◇ Claude Code can reuse a precomputed conversation summary instead of compacting fresh, gated offv2.1.198 → v2.1.308 ◆in the build AND v2.1.265
tengu_amber_quill_moth ◇ Publishing an artifact can carry a template choice, switched off here, plus new edit attribution.v2.1.221 → v2.1.272 ○gone AND v2.1.221
tengu_amber_tollgate ◇ A new gate can block plugin install links, requiring /plugin install to be typed manually insteadv2.1.275 → v2.1.308 ◆in the build AND v2.1.275
tengu_attempt_decision_shadow ◇ Claude Code now carries new rules for retrying failed API calls, which run alongside the current ones only to compare decisionsv2.1.284 → v2.1.308 ◆in the build AND v2.1.284
tengu_auto_mode_worktree_fast_path ◇ Auto mode could stop asking about sibling git worktrees of the same repo, but it is off.v2.1.227 → v2.1.308 ◆in the build AND v2.1.227
tengu_basalt_loom ◇ Plan artifacts now have their own switch instead of riding along with an unrelated experiment.v2.1.223 → v2.1.237 ○gone AND v2.1.223
tengu_basalt_scarp ◇ Default false. Takes effect only while tengu_basalt_spur is on, under the same provider conditions. When a forked request skips cache writes and its fork point is the same message as its main prompt-cache breakpoint, the breakpoint pinned at the fork point is placed one cacheable message earlier.v2.1.153 → v2.1.308 ◆in the build AND v2.1.248
tengu_basalt_spur ◇ Default false. Applies only when the provider is the first-party API, Anthropic on AWS or Google Cloud, or Foundry, and experimental betas are allowed (CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS unset, no HIPAA restriction). When on, the background memory-extraction (extract_memories) and auto-dream forks skip writing their new messages to the prompt cache, and request building can pin an extra cache breakpoint at the message a forked request branched from.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.248
tengu_binary_balloon ◇ Remote sessions can send tool descriptions straight from a recorded snapshot instead of rebuilding them, behind tengu_binary_balloonv2.1.281 → v2.1.308 ◆in the build AND v2.1.281
tengu_bracken_sluice ◇ A read-only subagent that analyses one artifact comment thread exists but stays off.v2.1.227 → v2.1.308 ◆in the build AND v2.1.227
tengu_brass_kite ◇ A tool lets Claude offer one-time Claude in Chrome setup through a card after a Chrome tool finds the extension is not connectednever mined ·never mined AND v2.1.290
tengu_brass_plover ◇ Artifacts can show who else is viewing live, but only if you set an environment variable.v2.1.251 → v2.1.308 ◆in the build AND v2.1.251
tengu_breezy_fairy ◇ Session device-binding can now request an elevated security tier, retrying without it if the server rejects the requestv2.1.274 → v2.1.308 ◆in the build AND v2.1.277
tengu_bridge_initialize_commands ◇ SDK clients are now re-told the model, mode, fast mode and effort whenever any of them change.v2.1.234 → v2.1.308 ◆in the build AND v2.1.234
tengu_bridge_inline_image_attachments ◇ Images sent from remote control could be inlined instead of passed as file paths, but that is off.v2.1.223 → v2.1.224 ○gone AND v2.1.223
tengu_bridge_partial_messages ◇ Partial-message bridging moved to a new flag that is off by default.v2.1.248 → v2.1.308 ◆in the build AND v2.1.248
tengu_bridge_requires_action_details ◇ Detailed requires-action payloads for remote clients remain off.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.301
tengu_bridge_subagent_text ◇ Default false. Controls which subagent messages are forwarded to a Remote Control session. While tengu_bridge_subagent_frames (default true) is on, only subagent messages that start with a tool_use or tool_result block are sent; turning this flag on sends the subagents' text messages as well.v2.1.251 → v2.1.308 ◆in the build AND v2.1.251
tengu_buzzing_pelican ◇ In some remote sessions, MCP tool calls a hook approved are checked by the auto mode classifier and always allow rules are ignoredv2.1.290 → v2.1.306 ○gone AND v2.1.290
tengu_c4e_slash_upsell ◇ Claude for Enterprise upsell message now differs for users who are fully signed out versus just missing an enterprise orgv2.1.160 → v2.1.308 ◆in the build AND v2.1.268
tengu_calm_waffle ◇ Claude Code has a remotely switched check that is true only when the latest turn is a plain prompt from you or an SDK programv2.1.307 → v2.1.308 ◆in the build AND v2.1.307
tengu_ccr_bridge ◇ Bridge worker sessions record which account launched them, but the bridge is off.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.283
tengu_ccr_classifier_keepalive_enabled ◇ Claude Code adds a keepalive so remote classifier calls don't time out during long coordination checksv2.1.280 → v2.1.308 ◆in the build AND v2.1.280
tengu_ccr_drop_unwatched_stream_events ◇ Two new remote flags control telemetry event-holding and dropping unwatched stream eventsv2.1.268 → v2.1.308 ◆in the build AND v2.1.268
tengu_ccr_exclude_dynamic_restore_killswitch ◇ A session setting for excluding dynamic sections now survives a worker restart in headless mode.v2.1.261 → v2.1.308 ◆in the build AND v2.1.261
tengu_ccr_external_event_record ◇ Remote cloud sessions woken by an outside event can now hand a record of that event to the wake step, behind a server switchv2.1.302 → v2.1.308 ◆in the build AND v2.1.302
tengu_ccr_handoff_metadata ◇ Handing a session to the cloud can include a snapshot of your checkout, off by default.v2.1.242 → v2.1.308 ◆in the build AND v2.1.290
tengu_ccr_hook_keepalive_enabled ◇ Remote and CCR sessions now hold a keepalive open while certain hooks are runningv2.1.271 → v2.1.308 ◆in the build AND v2.1.271
tengu_ccr_idle_heartbeat ◇ Remote sessions can detect a dead connection through probes and force a reconnect, off by default.v2.1.227 → v2.1.308 ◆in the build AND v2.1.228
tengu_ccr_plugin_refresh_in_idle_enabled ◇ Claude Code can now refresh plugin state during idle time in the background, with new timing telemetryv2.1.277 → v2.1.308 ◆in the build AND v2.1.277
tengu_ccr_reactivation_beat ◇ Remote sessions gain reconnect and reactivation heartbeats plus stale-connection recovery, all off here.v2.1.228 → v2.1.308 ◆in the build AND v2.1.228
tengu_ccr_reconnect_beat ◇ Remote sessions gain reconnect and reactivation heartbeats plus stale-connection recovery, all off here.v2.1.228 → v2.1.308 ◆in the build AND v2.1.228
tengu_ccr_sdk_mcp_remote_manifests ◇ Remote sessions use SDK MCP manifests only when owner-only and a separate server switch, off by default, allows itv2.1.286 → v2.1.308 ◆in the build AND v2.1.286
tengu_ccr_skip_redundant_heartbeat ◇ Remote-control worker connections gained tuning gates for an upload hold delay and for skipping redundant heartbeats.v2.1.259 → v2.1.308 ◆in the build AND v2.1.259
tengu_ccr_subagent_lazy_hydrate ◇ Cloud sessions can defer loading subagent transcripts, but the flag is off unless the server enables it.v2.1.247 → v2.1.268 ○gone AND v2.1.247
tengu_ccr_subagent_skip_on_delta ◇ A switch can skip one hydration read to speed session resume, but it is off.v2.1.221 → v2.1.308 ◆in the build AND v2.1.221
tengu_ccr_upload_hold_marker ◇ New telemetry gate can add upload-hold details to Claude Code Remote's upload datav2.1.267 → v2.1.308 ◆in the build AND v2.1.305
tengu_ccr_v2_bridge_create_cli ◇ A new CCR v2 bridge CLI is gated behind a flag that currently defaults off.v2.1.261 → v2.1.308 ◆in the build AND v2.1.261
tengu_ccr_v2_session_crud_cli ◇ A new gated flag controls session create/read/update/delete support for CCR v2 in the CLI's MCP bootstrapv2.1.211 → v2.1.308 ◆in the build AND v2.1.296
tengu_cedar_lattice ◇ You can send API requests down a newer routing path by setting one of two environment variables.v2.1.182 → v2.1.308 ◆in the build AND v2.1.251
tengu_cedar_plume ◇ A startup tip pointing at a /design command for mocking up UI is present but nobody sees it.v2.1.169 → v2.1.308 ◆in the build AND v2.1.236
tengu_cedar_transom ◇ A per-session workshop document gets snapshotted with your session files and is only writable in plan mode.v2.1.219 → v2.1.308 ◆in the build AND v2.1.219
tengu_chair_sermon ◇ A message-history folding pass stays off by default but now tracks which attachment types get folded.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.281
tengu_chomp_inflection ◇ The Prompt suggestions row in /config still appears only when a server-side switch is on; only the surrounding code changedv2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.288
tengu_chomp_sable ◇ New internal logic can silently drop certain non-user-initiated turn continuations, gated off for nowv2.1.280 → v2.1.308 ◆in the build AND v2.1.280
tengu_chomp_thaw ◇ A usage-tracking helper can now report cache-write-sized usage as unknown instead of labeling it 'cache_write'v2.1.269 → v2.1.308 ◆in the build AND v2.1.269
tengu_chrome_auto_enable ◇ Automatic Chrome integration stays disabled; only its decision function changed shape.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.238
tengu_chrome_install_upsell ◇ Chrome install upsell eligibility logic was reworked, still off by default.v2.1.206 → v2.1.308 ◆in the build AND v2.1.260
tengu_classifier_summary_llm_emit ◇ Lightweight conversation summaries are now always generated instead of needing a flag.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.225
tengu_clever_garden ◇ Claude Code reads a new remotely controlled switch that is off unless switched on remotely, and what it controls is unknownv2.1.305 → v2.1.308 ◆in the build AND v2.1.305
tengu_clever_orbit ◇ The built-in web-fetch agent refuses observer and worktree roles and just runs locally.v2.1.232 → v2.1.308 ◆in the build AND v2.1.236
tengu_cloud_session_shell ◇ A second mode lets cloud workers run a requested shell command through Claude's Bash tool, so Claude sees it and the folder carries overv2.1.305 → v2.1.308 ◆in the build AND v2.1.305
tengu_cobalt_harbor ◇ Whether remote control auto-started, and why, is now recorded.v2.1.181 → v2.1.308 ◆in the build AND v2.1.283
tengu_cobalt_plinth_alder ◇ Claude can now read back a published artifact's contents; browsing, multi-file publishing and deletion are built but off.v2.1.239 → v2.1.308 ◆in the build AND v2.1.285
tengu_cobalt_plinth_aspen ◇ The preview browser is locked to the local server and refuses to run if the lock fails.v2.1.247 → v2.1.308 ◆in the build AND v2.1.292
tengu_cobalt_plinth_bracken ◇ You could start a private artifact from a published template, but two server switches keep it shut here.v2.1.216 → v2.1.308 ◆in the build AND v2.1.273
tengu_cobalt_plinth_campion ◇ Publish checks could warn about page thumbnails, but the experiment is off.v2.1.251 → v2.1.308 ◆in the build AND v2.1.257
tengu_cobalt_plinth_damson ◇ The artifact tool's flat verbs are mapped to a canonical action shape, with a gate deciding which toolset is active.v2.1.257 → v2.1.308 ◆in the build AND v2.1.265
tengu_cobalt_plinth_dataviz ◇ The chart skill hint now only appears if the dataviz skill is actually installed.v2.1.198 → v2.1.308 ◆in the build AND v2.1.247
tengu_cobalt_plinth_fennel ◇ Bot-driven sessions no longer relay artifact requests; they go direct or not at all.v2.1.247 → v2.1.308 ◆in the build AND v2.1.267
tengu_cobalt_plinth_loquat ◇ MCP config building gets a new caching layer, currently unread/offv2.1.265 → v2.1.266 ○gone AND v2.1.265
tengu_cobalt_plinth_mallow ◇ Artifact comment and subscription operations can each be switched on separately from the server.v2.1.282 → v2.1.308 ◆in the build AND v2.1.282
tengu_cobalt_plinth_medlar ◇ Artifact creation replies can now mark a URL as agent-scoped, controlled by a gated flagv2.1.260 → v2.1.308 ◆in the build AND v2.1.275
tengu_cobalt_plinth_sainfoin ◇ Two new switches set by Anthropic's servers are built in, one falling back to off and one to onv2.1.290 → v2.1.308 ◆in the build AND v2.1.290
tengu_cobalt_plinth_samphire ◇ Multi-file artifact publish can copy published files between artifacts, tracked while still gated off.v2.1.260 → v2.1.308 ◆in the build AND v2.1.260
tengu_cobalt_plinth_sedge ◇ Reading an artifact as a public non-member reader still refuses; the switch stays off in this build.v2.1.216 → v2.1.308 ◆in the build AND v2.1.275
tengu_cobalt_plinth_sorb ◇ Artifact publishing skips its design-skill reminder if quickstart guidance was already shown for that callv2.1.257 → v2.1.308 ◆in the build AND v2.1.285
tengu_cobalt_plinth_tansy ◇ Several artifact feature switches were renamed and re-gated, discarding any prior rollout.v2.1.242 → v2.1.308 ◆in the build AND v2.1.282
tengu_cobalt_plinth_thistle ◇ Several artifact feature switches were renamed and re-gated, discarding any prior rollout.v2.1.242 → v2.1.270 ○gone AND v2.1.242
tengu_cobalt_plinth_thrift ◇ A new artifact-related server switch exists and stays off without a server value.v2.1.242 → v2.1.308 ◆in the build AND v2.1.242
tengu_cobalt_plinth_willow ◇ Whether an artifact auto-opens in a local browser is now behind a new env var, off by default.v2.1.257 → v2.1.308 ◆in the build AND v2.1.257
tengu_cobalt_plinth_woad ◇ A new Artifacts 'quickstart' action can list design systems and route slide/document requests, feature-flaggedv2.1.271 → v2.1.292 ○gone AND v2.1.271
tengu_cobalt_plinth_yarrow ◇ Artifact syntax highlighting and mermaid diagrams are now always on; three other gates were renamed and stay off.v2.1.239 → v2.1.241 ○gone AND v2.1.239
tengu_cobalt_plinth_yew ◇ Cloud runs could attach an extra hosted connector, but the flag falls back to off.v2.1.239 → v2.1.308 ◆in the build AND v2.1.239
tengu_cobalt_ridge ◇ A new remote PowerShell tool lets Claude Code run PowerShell commands on an attached Windows machine instead of locallyv2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.280
tengu_composed_treehouse ◇ When tools added later in a session are withdrawn because they were denied, Claude Code marks this, behind a switch that is off by defaultv2.1.304 → v2.1.308 ◆in the build AND v2.1.304
tengu_concurrent_moonbeam ◇ Behind a remote switch that falls back to off, turning off terminal titles can also skip automatic session titlingv2.1.284 → v2.1.308 ◆in the build AND v2.1.284
tengu_context_usage_bulk_counts ◇ A bulk per-tool token counting path exists but is gated behind two flags, both off by default.v2.1.261 → v2.1.308 ◆in the build AND v2.1.261
tengu_copper_heron ◇ Behind a remote switch, skills named claude-ai: or anthropic-skills: must really come from the matching source to be usedv2.1.282 ○gone AND v2.1.282
tengu_copper_hinge_wren ◇ Live document reads gain new fields for tracking update sequence and a gated deadline optionv2.1.267 → v2.1.308 ◆in the build AND v2.1.267
tengu_copper_thistle ◇ The status line always calls MCP background work a "task" instead of sometimes saying "job".v2.1.161 → v2.1.308 ◆in the build AND v2.1.292
tengu_cosmic_cookie ◇ Claude Code has a new remote switch, read by the code that manages terminal sessions, with no visible feature behind it yetv2.1.295 → v2.1.308 ◆in the build AND v2.1.295
tengu_cowork_auto_mode_include_allowed_write_mcp ◇ MCP tools that may act on a session's desktop now need approval each time, and remote-session MCP prompts cannot become always-allow rulesv2.1.212 → v2.1.308 ◆in the build AND v2.1.299
tengu_cowork_chrome_automode_default ◇ The terminal tab status toggle, Claude API tip and Chrome classifier default only moved; their gate fallbacks are unchangedv2.1.187 → v2.1.308 ◆in the build AND v2.1.296
tengu_cozy_fern ◇ If an MCP tool asks to end the turn while a tool call in the same batch failed, Claude Code can now keep the turn goingv2.1.301 → v2.1.308 ◆in the build AND v2.1.302
tengu_cozy_kite ◇ Before a tool runs, Claude Code can wait for files still being staged, but only when a remote switch that defaults to off is onv2.1.292 → v2.1.308 ◆in the build AND v2.1.292
tengu_curious_tower ◇ New gated 'tether' system can thread API requests together server-side instead of resending full context each turnv2.1.265 → v2.1.308 ◆in the build AND v2.1.296
tengu_dapper_acorn ◇ A new remotely controlled switch is off by default and never applies to organisations under the HIPAA policyv2.1.290 → v2.1.308 ◆in the build AND v2.1.290
tengu_dapper_brooks ◇ Remote Control can download up to 16 attachments ahead of time, before the message that uses them arrivesv2.1.281 → v2.1.308 ◆in the build AND v2.1.281
tengu_dapper_dawn ◇ The shadow logging that measures idle sessions now records when Claude Code starts and stops waiting for your input, not only when work runsv2.1.251 → v2.1.308 ◆in the build AND v2.1.283
tengu_dapper_dusk ◇ Claude Code adds several new remotely controlled switches whose purpose is not yet visiblev2.1.299 → v2.1.308 ◆in the build AND v2.1.299
tengu_dapper_platypus ◇ A relay-marked worker whose relay can no longer be used now makes its first command wait for MCP servers like an ordinary workerv2.1.286 → v2.1.308 ◆in the build AND v2.1.301
tengu_delightful_hamster ◇ Claude Code drops a plugin's MCP server that matches an ineligible connector, unless a remote switch, off by default, keeps itv2.1.307 → v2.1.308 ◆in the build AND v2.1.307
tengu_destructive_command_warning ◇ The destructive-command warning now reads the real command, but it stays off unless the feature flag is on.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.290
tengu_disable_live_host_context ◇ The safety classifier now sees notes from the hosting app, treating live ones as possible user consent.v2.1.236 → v2.1.308 ◆in the build AND v2.1.236
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