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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Feature flags, all 2,081.

GrowthBook gates the client evaluates on startup. Most of what ships is behind one of these before it is announced.

Feature flags2,081seen across 149 builds
In v2.1.308889the newest inventory on disk
Gone314in an earlier build, not in the newest
Described0have a line in Anthropic's documentation
No docs line2,081no line in the documentation we hold

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.

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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