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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

564 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_cinder_wren ◇ The instructions Claude gets for AskUserQuestion are now chosen based on which other tools are available in the sessionv2.1.216 → v2.1.308 ◆in the build AND v2.1.301 tengu_classifier_disabled_surfaces ◇ The spinner can show a short headline of what Claude is actually working on right now.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.227 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_awning ◇ Remote sessions gain bookkeeping for the time of the last full sign-in check before model requests, off unless a server value is setv2.1.285 → v2.1.291 ○gone 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_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_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_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_quince ◇ Published Artifacts get per-block anchor ids so links can point at a specific block.v2.1.236 → v2.1.238 ○gone AND v2.1.239 tengu_cobalt_plinth_sill ◇ A lock primitive's timeout can now be remotely tuned, though no server value is set yet.v2.1.260 → v2.1.308 ◆in the build AND v2.1.260 tengu_cobalt_plinth_sloe ◇ The Artifact tool's instructions now come in versions v0, v1 and v2, picked once per session by an env var, the session origin or a flagv2.1.281 → v2.1.295 ○gone AND v2.1.281 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_teasel ◇ Publishing an artifact skips its re-read check when your last read matched the live version.v2.1.248 → v2.1.299 ○gone AND v2.1.248 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_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_compressed_river ◇ A new confirmation dialog appears when a tool tries to read a file outside the allowed listv2.1.268 → v2.1.308 ◆in the build AND v2.1.268 tengu_concurrent_shore ◇ Waiting on a backgrounded shell command now keeps a task alive, controlled by a remote setting defaulting on.v2.1.242 → v2.1.308 ◆in the build AND v2.1.242 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_coral_anchor ◇ A remote task stuck waiting on input now fails as blocked and tells you where to answer it.v2.1.239 → v2.1.308 ◆in the build AND v2.1.281 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_cozy_eagle ◇ Some Claude in Chrome tools now ask for your permission rather than running at once, even with a whole-tool allow rulev2.1.290 → v2.1.308 ◆in the build AND v2.1.290 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_cozy_pixel ◇ A new fork_conversation control request lets a host app branch a session's history into a brand-new sessionv2.1.268 → v2.1.276 ○gone AND v2.1.277 tengu_cozy_teapot ◇ A remotely gated A/B test can loosen the bash-first system prompt wording.v2.1.271 → v2.1.306 ○gone AND v2.1.307 tengu_curious_lake ◇ Delete commands like rd or del run through cmd.exe are now blocked when they target a drive root, a top folder or homev2.1.304 ○gone AND v2.1.283 tengu_curious_river ◇ In Anthropic cloud sessions, a running MCP task stops keeping its cloud container up after a set number of hours, 168 by defaultv2.1.305 → v2.1.308 ◆in the build AND v2.1.305 tengu_curious_tower_stateless_models ◇ 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 v2.1.265 tengu_daemon_upgrade_defer_busy ◇ The background service waits for your turn to finish before restarting for an upgrade.v2.1.248 → v2.1.308 ◆in the build AND v2.1.300 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_cupcake ◇ The setting that controls artifacts beside tool results is now CLAUDE_CODE_DAPPER_CUPCAKE, and the old CLAUDE_CODE_SQUISHY_NEWT is ignoredv2.1.301 → v2.1.308 ◆in the build AND v2.1.301 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_dapper_truffle ◇ Auto mode's check of allowed MCP write tools now accepts rules from a command and adds a server-side decision path that is off by defaultv2.1.299 → v2.1.308 ◆in the build AND v2.1.299 tengu_dazzling_garden ◇ Three new remote-bridge switches appear, covering a retry after a rejected token refresh and two unread ones.v2.1.238 → v2.1.308 ◆in the build AND v2.1.238 tengu_deep_feather ◇ A new remote flag, on by default, reassembles split message-tool inputs when they are read back.v2.1.236 → v2.1.308 ◆in the build AND v2.1.236 tengu_deep_starlight ◇ Whole-PDF reads can skip a page-image render that only fed telemetry, and PDF renders can now be cancelledv2.1.281 → v2.1.306 ○gone AND v2.1.307 tengu_delegated_quail ◇ A background model-catalog comparison check now always has network access, though the feature stays off by defaultv2.1.251 → v2.1.308 ◆in the build AND v2.1.283 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_disable_bypass_permissions_mode ◇ Default false. When on, it disables bypassPermissions mode the same way the setting permissions.disableBypassPermissionsMode: "disable" does: startup mode selection skips bypassPermissions with the notice Bypass permissions mode was disabled by your organization policy, and the permission context marks bypass mode unavailable. A session already in bypass mode is also checked asynchronously against this gate; in the interactive UI it is switched to default mode, and on the other startup path Claude Code logs a warning and shuts down with exit code 1 and reason bypass_permissions_disabled.v2.1.138 or earlier → v2.1.233 ○gone AND v2.1.234 tengu_dreamy_frost ◇ You can send API requests down a newer routing path by setting one of two environment variables.v2.1.251 → v2.1.308 ◆in the build AND v2.1.251 tengu_dreamy_sundae ◇ claude.ai MCP connectors now cache 'discover' probe results for 24 hoursv2.1.280 → v2.1.308 ◆in the build AND v2.1.280 tengu_drifting_heron ◇ In sessions started by a remote trigger, one tool is no longer always forced into the set of tools loaded at the startnever mined ·never mined AND v2.1.284 tengu_drifting_reef ◇ A new switch, off by default, makes computer-use actions in auto mode go through further permission checks even when an allow rule covers the whole toolv2.1.284 → v2.1.308 ◆in the build AND v2.1.284 tengu_eager_rain ◇ When a response stops arriving because it was suspended, Claude Code now retries it a limited number of times before its usual retry handlingv2.1.290 → v2.1.308 ◆in the build AND v2.1.290 tengu_edit_minimalanchor_jrn ◇ Claude Code no longer carries an alternative Edit tool description that told Claude to read files outside the working folder before editing themv2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.285 tengu_elegant_meadow ◇ New, off-by-default recording writes each API request's system prompt, tools and message changes into the session transcript filev2.1.282 → v2.1.308 ◆in the build AND v2.1.300 tengu_elegant_pancake ◇ The clipboard stash-and-restore around tool use is gone, leaving only a flag check for whether the behavior is on.v2.1.257 → v2.1.308 ◆in the build AND v2.1.257 tengu_enchanted_willow ◇ Mid-turn cost and token updates for print and SDK sessions now only run if a server-provided interval is set; with none, they are skippedv2.1.291 → v2.1.294 ○gone AND v2.1.291 tengu_ethereal_mist ◇ A 403 injected by your corporate proxy is retried as an outage instead of a hard refusal.v2.1.238 → v2.1.308 ◆in the build AND v2.1.238 tengu_event_sampling_config ◇ Default {}. A per-event sampling table for Claude Code's own analytics events, keyed by event name. When an event's entry has a numeric sample_rate between 0 and 1, a rate of 0 drops the event, a rate below 1 keeps it with that probability and adds sample_rate to the logged fields, and a rate of 1 logs it normally; a missing entry or an invalid rate also logs normally.never mined ·never mined AND v2.0.54 tengu_eventual_haven ◇ After a folder on your computer is attached to a remote session, Claude Code now waits for that computer to announce itself before reporting which tools are availablev2.1.282 → v2.1.308 ◆in the build AND v2.1.282 tengu_eventual_noodle ◇ Claude Code can reorder MCP tool results so text comes after other content, off unless switched on remotelyv2.1.290 → v2.1.308 ◆in the build AND v2.1.290 tengu_expressive_galaxy ◇ The auto-mode fallback warning can now appear inside SDK host apps that support it, when tengu_expressive_galaxy allowsv2.1.281 → v2.1.284 ○gone AND v2.1.281 tengu_fancy_crab ◇ Account memory tool inputs and results can be replaced with a placeholder, and remote sessions now fetch memory at the start and end of a turnv2.1.285 → v2.1.308 ◆in the build AND v2.1.285 tengu_fancy_milner ◇ Claude Code has a new remote switch that counts as on when the server sends no value, and it guards behaviour that is not namedv2.1.302 → v2.1.303 ○gone AND v2.1.302 tengu_feedback_survey_config ◇ The feedback survey checks for itself whether you're mid-prompt, so it interrupts you less.v2.1.162 → v2.1.308 ◆in the build AND v2.1.247 tengu_fizzy_grove ◇ A gate decides which of two error codes an interrupt-triggered abort reports.v2.1.257 → v2.1.308 ◆in the build AND v2.1.280 tengu_fizzy_minsky ◇ In the desktop app and on claude.ai, a browser request with no extension connected can get a fixed setup reply instead of a model answerv2.1.300 ○gone AND v2.1.301 tengu_fizzy_treasure ◇ 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_fleetview_peers ◇ Fleet view can show other running sessions it never tracked, once two gates are on.v2.1.224 → v2.1.308 ◆in the build AND v2.1.305 tengu_fleetview_pr_batch ◇ Fleet view still keeps peer session adoption off and batched PR status on by default.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.305 tengu_fleetview_simple ◇ The rule for turning on fleet view's simple mode is unchanged, but the way that code looks up keyboard shortcuts changedv2.1.216 → v2.1.308 ◆in the build AND v2.1.299 tengu_flickering_lagoon ◇ send_message can route messages to a bridge address through a matching MCP tool, behind a remote switch that defaults to offv2.1.299 → v2.1.308 ◆in the build AND v2.1.299 tengu_flint_harbor_prompt ◇ Default {}. Overrides for the /team-onboarding command: a string prompt replaces the built-in prompt template, a string guideTemplate replaces the text inserted at {{GUIDE_TEMPLATE}}, and a number windowDays sets how many days of usage data are scanned, floored and clamped to 1 through 365 (default 30). Fields of the wrong type use the built-in values.v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.248 tengu_fold_tool ◇ Default false. In an interactive session, the message list outside the transcript view hides every message whose uuid is listed in the foldedUuids of a fold_boundary system message. Non-interactive sessions treat the flag as off.v2.1.198 → v2.1.209 ○gone AND v2.1.198 tengu_fresh_heron ◇ Claude Code has a new remotely controlled switch that counts as on when the server sends no value, and nothing yet shows what it controlsv2.1.289 → v2.1.308 ◆in the build AND v2.1.289 tengu_gable_onyx_sluice ◇ Publishing a workshop page would run a structural check and refuse instead of shipping violations.v2.1.219 → v2.1.308 ◆in the build AND v2.1.248 tengu_gb_eval_authed_enable ◇ Feature-flag requests can now attach auth asynchronously, but that path stays off in this build.v2.1.212 → v2.1.226 ○gone AND v2.1.227 tengu_gb_refresh_interval_minutes ◇ Feature flags now refresh in the background every six hours instead of only at startup.v2.1.221 → v2.1.308 ◆in the build AND v2.1.221 tengu_gentle_hummingbird ◇ The control protocol gains a folder-listing request and a set of requests that let desktop, mobile and VS Code apps display and operate Claude Codev2.1.285 → v2.1.308 ◆in the build AND v2.1.293 tengu_giggly_dragonfly ◇ With input closed and no budget cap, a session with armed monitors can be held open past the background-task ceiling.v2.1.257 → v2.1.308 ◆in the build AND v2.1.295 tengu_gleaming_creek ◇ For MCP servers whose host is flagged by the cloud host check, Claude Code now trims the features it says it supports when connectingv2.1.305 → v2.1.308 ◆in the build AND v2.1.305 tengu_gleaming_cupcake ◇ New gates let Claude Code report tools that exist but are switched off as "available if turned on"v2.1.275 → v2.1.308 ◆in the build AND v2.1.275 tengu_gleaming_fair ◇ Resuming a session can now reuse an already-computed summary instead of recalculating itv2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.265 tengu_gleaming_fair_reuse ◇ Resuming a session can now reuse an already-computed summary instead of recalculating itv2.1.265 → v2.1.308 ◆in the build AND v2.1.265 tengu_gleaming_rivest ◇ A program asking Claude Code to re-initialize a session can now turn on prompt suggestions, if a remote setting allows itv2.1.285 → v2.1.287 ○gone AND v2.1.288 tengu_glittery_fern ◇ The skill-proposal tool can now refuse a proposed SKILL.md that keeps too few lines of your current one, using a threshold set remotelyv2.1.290 → v2.1.308 ◆in the build AND v2.1.290 tengu_glittery_mitten ◇ Stop hooks can now act on a kind of end-of-turn request that comes from an MCP server, behind a server-controlled switchv2.1.302 → v2.1.308 ◆in the build AND v2.1.302 tengu_golden_popcorn ◇ CLAUDE_CODE_GZIP_REQUEST_BODY_LEVEL sets a gzip level from 1 to 9 for requests Claude Code already compressesv2.1.282 → v2.1.299 ○gone AND v2.1.282 tengu_goofy_jellyfish ◇ In Claude Desktop, auto-compact on 1M-context models can now be capped at a 600k or 500k window by a server-side settingv2.1.283 → v2.1.306 ○gone AND v2.1.283 tengu_gorse_pylon ◇ Claude can post a quick 'on it' note in artifact comment threads before the real reply, off unless enabled.v2.1.232 → v2.1.308 ◆in the build AND v2.1.237 tengu_gorse_sill ◇ A second fast-ack mode lets Claude pick a fixed numbered acknowledgment instead of writing one, off behind two gatesv2.1.235 → v2.1.308 ◆in the build AND v2.1.235 tengu_gravel_chorus ◇ A new default-on internal flag was added with an unclear purpose.v2.1.260 → v2.1.308 ◆in the build AND v2.1.260 tengu_greedy_crane ◇ Claude Code checks a new remotely controlled switch and reads its settings from a renamed one, though what either controls is unknownv2.1.287 → v2.1.308 ◆in the build AND v2.1.287 tengu_grey_step2 ◇ No description from anybody.never mined ·never mined AND v2.1.68 tengu_gzip_request_bodies ◇ The gzip decision now records exactly why it skipped, though compression stays off without a server value.v2.1.199 → v2.1.283 ○gone AND v2.1.236 tengu_harbor_kite_limits ◇ Incoming peer messages now pass rate, duplicate and loop checks before queuing, with drops shown to you.v2.1.242 → v2.1.245 ○gone AND v2.1.223 tengu_harbor_ledger ◇ Default []. Built-in allowlist of channel plugins as {marketplace, plugin} entries; a value that fails validation counts as empty. When managed settings give no allowedChannelPlugins, a plugin requested through --channels outside development mode is skipped unless it is on this list. Separately, whatever the managed setting says, an MCP server's claude/channel capability is removed from its reported status unless its plugin is on this list (among other conditions).v2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.80 tengu_harbor_moth ◇ Default false. Turns on remote recaps: at the end of a turn, in a session that reports metadata changes, Claude Code generates a recap and publishes it as the session's recap metadata, dropping it if a new turn is already running. Further checks must also pass, and CLAUDE_CODE_ENABLE_REMOTE_RECAP, when set, takes precedence over the flag.v2.1.174 → v2.1.308 ◆in the build AND v2.1.174 tengu_harmonic_cook ◇ Messages relayed from a project's coordinator session are handled by a switch that defaults to on, and the model is told when one is waitingv2.1.282 → v2.1.300 ○gone AND v2.1.282 tengu_harp_forepillar ◇ Claude Code now stores state about skills converted into plugins, plus a new flag for keeping something across restartsv2.1.304 → v2.1.308 ◆in the build AND v2.1.304
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