()
| 71 | } |
| 72 | |
| 73 | export function getFastModeUnavailableReason(): string | null { |
| 74 | if (!isFastModeEnabled()) { |
| 75 | return 'Fast mode is not available' |
| 76 | } |
| 77 | |
| 78 | const statigReason = getFeatureValue_CACHED_MAY_BE_STALE( |
| 79 | 'ncode_penguins_off', |
| 80 | null, |
| 81 | ) |
| 82 | // Statsig reason has priority over other reasons. |
| 83 | if (statigReason !== null) { |
| 84 | logForDebugging(`Fast mode unavailable: ${statigReason}`) |
| 85 | return statigReason |
| 86 | } |
| 87 | |
| 88 | // Previously, fast mode required the native binary (bun build). This is no |
| 89 | // longer necessary, but we keep this option behind a flag just in case. |
| 90 | if ( |
| 91 | !isInBundledMode() && |
| 92 | getFeatureValue_CACHED_MAY_BE_STALE('ncode_marble_sandcastle', false) |
| 93 | ) { |
| 94 | return 'Fast mode requires the native binary · Install from: https://claude.com/product/claude-code' |
| 95 | } |
| 96 | |
| 97 | // Not available in the SDK unless explicitly opted in via --settings. |
| 98 | // Assistant daemon mode is exempt — it's first-party orchestration, and |
| 99 | // kairosActive is set before this check runs (main.tsx:~1626 vs ~3249). |
| 100 | if ( |
| 101 | getIsNonInteractiveSession() && |
| 102 | preferThirdPartyAuthentication() && |
| 103 | !getKairosActive() |
| 104 | ) { |
| 105 | const flagFastMode = getSettingsForSource('flagSettings')?.fastMode |
| 106 | if (!flagFastMode) { |
| 107 | const reason = 'Fast mode is not available in the Agent SDK' |
| 108 | logForDebugging(`Fast mode unavailable: ${reason}`) |
| 109 | return reason |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | // Only available for 1P (not Bedrock/Vertex/Foundry) |
| 114 | if (getAPIProvider() !== 'firstParty') { |
| 115 | const reason = 'Fast mode is not available on Bedrock, Vertex, or Foundry' |
| 116 | logForDebugging(`Fast mode unavailable: ${reason}`) |
| 117 | return reason |
| 118 | } |
| 119 | |
| 120 | if (orgStatus.status === 'disabled') { |
| 121 | if ( |
| 122 | orgStatus.reason === 'network_error' || |
| 123 | orgStatus.reason === 'unknown' |
| 124 | ) { |
| 125 | // The org check can fail behind corporate proxies that block the |
| 126 | // endpoint. We add CLAUDE_CODE_SKIP_FAST_MODE_NETWORK_ERRORS=1 to |
| 127 | // bypass this check in the CC binary. This is OK since we have |
| 128 | // another check in the API to error out when disabled by org. |
| 129 | if (isEnvTruthy(process.env.CLAUDE_CODE_SKIP_FAST_MODE_NETWORK_ERRORS)) { |
| 130 | return null |
no test coverage detected