/** /proxy-stats payload. */
export interface StatsPayload {
    port: number;
    uptime_sec: number;
    requests: number;
    compressed_requests: number;
    passthrough: number;
    baseline_input_weighted: number;
    actual_input_weighted: number;
    saved_input_tokens: number;
    /** Back-compat duplicate of `saved_pct_input_only`. */
    saved_pct: number;
    saved_pct_input_only: number;
    /** DEPRECATED — denominator was measured-rows-only (cherry-picks wins). Kept for back-compat. */
    saved_pct_of_total_bill: number;
    /** Measured-rows savings ÷ ALL paid requests (compressed + passthrough + probe-failed). */
    saved_pct_of_all_spend: number;
    all_baseline_equivalent_weighted: number;
    all_actual_input_weighted: number;
    all_output_weighted: number;
    all_usage_requests: number;
    /** Observed cost split: compressed vs passthrough paths on real traffic. `split_sufficient_sample` gates the per-request delta (UI shows caveat below threshold). */
    compressed_paid_requests: number;
    passthrough_paid_requests: number;
    compressed_actual_usd: number;
    passthrough_actual_usd: number;
    compressed_avg_usd_per_request: number;
    passthrough_avg_usd_per_request: number;
    compressed_minus_passthrough_avg_usd: number;
    split_sufficient_sample: boolean;
    split_min_sample_per_bucket: number;
    /** Cache-tier-aware input-side dollar savings. */
    saved_usd: number;
    output_weighted: number;
    baseline_token_equivalent: number;
    actual_token_equivalent: number;
    pricing_assumptions: PricingAssumptions;
    measured_text_chars: number;
    measured_thinking_chars: number;
    measured_tool_use_chars: number;
    measured_redacted_block_count: number;
    events_with_measurement: number;
    uptime_sec_unused?: never;
    compression_enabled: boolean;
}
export interface PricingAssumptions {
    input_per_mtok: number;
    output_multiplier: number;
    cache_write_5m_multiplier: number;
    cache_write_1h_multiplier: number;
    cache_read_multiplier: number;
    source: string;
}
/** /proxy-recent payload. */
export interface RecentPayload {
    recent: RecentRow[];
    has_preview: boolean;
    preview_meta: string;
    image_ids?: number[];
}
export interface RecentRow {
    ts: number;
    method: string;
    path: string;
    model?: string;
    status: number;
    size_in?: number;
    compressed: boolean;
    cc_added?: number;
    input_tokens?: number;
    output_tokens?: number;
    cache_create?: number;
    cache_read?: number;
    actual_input?: number;
    baseline_input?: number;
    session_saved_so_far_delta?: number;
    img_id?: number;
    img_ids?: number[];
}
/** /api/sessions.json payload. */
export interface SessionsPayload {
    sessions: SessionRow[];
    count: number;
}
export interface SessionRow {
    id: string;
    project: string | null;
    firstSeen: string;
    lastSeen: string;
    requestCount: number;
    charsSaved: number;
    tokensSavedEst: number;
    cacheReadTokens: number;
    jsonlBytes: number;
    sidecarBytes: number;
    claudeCode: ClaudeCodeRef | null;
}
export interface ClaudeCodeRef {
    sessionId: string;
    projectPath: string;
    cwd?: string;
    firstUserPreview?: string;
}
/** /api/stats.json payload. */
export interface FullStatsPayload {
    parsed: number;
    dropped: number;
    summary: FullStatsSummary;
    error?: string;
    path?: string;
}
export interface FullStatsSummary {
    total: number;
    ok2xx: number;
    err4xx: number;
    err5xx: number;
    compressed: number;
    passthrough: number;
    inputTokensTotal: number;
    cacheCreateTokensTotal: number;
    cacheReadTokensTotal: number;
    outputTokensTotal: number;
    cacheHitEvents: number;
    eventsWithUsage: number;
    origCharsTotal: number;
    imageBytesTotal: number;
    pinCharsTotal?: number;
    pinEvents?: number;
    durationP50: number;
    durationP95: number;
    firstByteP50: number;
    firstByteP95: number;
}
/** POST /api/compression response. */
export interface CompressionToggleResponse {
    compression_enabled: boolean;
}
/** /api/current-session.json — aggregates for the most-recently-active session.
 *  Includes session-wide totals needed for the honest saved-% against the full bill (not just measured slice). */
export interface CurrentSessionPayload {
    sessionId: string | null;
    message?: string;
    baselineInputWeighted?: number;
    actualInputWeighted?: number;
    baselineMeasuredCount?: number;
    /** Σ actualInputWeighted over all session requests — honest denominator for saved-% against the full bill. */
    allActualInputWeighted?: number;
    /** Σ outputWeighted over all session requests. */
    allOutputWeighted?: number;
    /** Raw input tokens (no rate weighting): Σ(input+cache_create+cache_read). Cache-blind — kept for the math drawer, NOT the headline (which uses the weighted pair). */
    rawActualTokens?: number;
    /** Σ count_tokens of each body as plain text — the cache-blind baseline side. */
    rawBaselineTokens?: number;
    /** Raw output tokens — shown as an "untouched" note; output is never compressed. */
    rawOutputTokens?: number;
}
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