deepseek-ai/deepseek-harness · error · Error

TokenMeterConfig: unknown key "${key}" (no settings are supp

Error message

TokenMeterConfig: unknown key "${key}" (no settings are supported)

What it means

Error "TokenMeterConfig: unknown key "${key}" (no settings are supported)" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/llm/token-meter/src/index.ts:63

  return usage.inputTokens
    + (usage.cacheReadTokens ?? 0)
    + (usage.cacheWriteTokens ?? 0)
    + usage.outputTokens
}

/** Compare optional envelopes so a headerless estimate can track later surface deltas. */
function optionalHeaderEquals(
  left: EpochHeader | undefined,
  right: EpochHeader | undefined,
): boolean {
  if (left === undefined || right === undefined) return left === right
  return headerEquals(left, right)
}

/** Reject stale or misspelled keys before defaults can hide them. */
function validateConfigKeys(config: TokenMeterConfig): void {
  for (const key of Object.keys(config)) {
    throw new Error(`TokenMeterConfig: unknown key "${key}" (no settings are supported)`)
  }
}

declare module '@deepseek-ai/cordis' {
  interface Context {
    tokenMeter: TokenMeter
  }
}

/** Replay owner for one service-wide estimator and isolated per-session folds. */
export class TokenMeter extends Service {
  // Schemastery preserves untrusted loader keys on an empty object schema;
  // the public type excludes settings while validateConfigKeys rejects them.
  static Config: z<TokenMeterConfig> = z.object({}) as unknown as z<TokenMeterConfig>

  private readonly states = new WeakMap<Session, ReplayState>()

  constructor(ctx: Context, config: TokenMeterConfig = {}) {

View on GitHub (pinned to b150a551b8)

Solutions

1. Remove the unknown key; TokenMeterConfig supports no settings.

When it happens

Trigger: Thrown at packages/llm/token-meter/src/index.ts:63 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/3dfd72a6e78c498f. Report an issue: GitHub.