deepseek-ai/deepseek-harness · error · Error

subprocess-e2b: remote wrapper published invalid exit code $

Error message

subprocess-e2b: remote wrapper published invalid exit code ${JSON.stringify(rawStatus)}

What it means

Error "subprocess-e2b: remote wrapper published invalid exit code ${JSON.stringify(rawStatus)}" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/e2b/subprocess-e2b/src/process.ts:527

  }

  private async waitForCommand(
    sandbox: Sandbox,
    handle: CommandHandle,
    completion: Promise<CommandResult>,
  ): Promise<SubprocessOutcome> {
    const settlement = completion.then<CommandSettlement, CommandSettlement>(
      result => ({ kind: 'result', result }),
      (error: unknown) => ({ kind: 'error', error }),
    )
    const hasPipeOutput = this.spec.stdio.stdout === 'pipe' || this.spec.stdio.stderr === 'pipe'
    let completed = hasPipeOutput ? await settlement : undefined
    while (true) {
      const rawStatus = (await sandbox.files.read(this.paths.status)).trim()
      if (rawStatus.length > 0) {
        const exitCode = Number(rawStatus)
        if (!/^(?:0|[1-9][0-9]*)$/.test(rawStatus) || !Number.isSafeInteger(exitCode) || exitCode > 255) {
          throw new Error(`subprocess-e2b: remote wrapper published invalid exit code ${JSON.stringify(rawStatus)}`)
        }
        if (completed !== undefined) return this.commandOutcome(completed, exitCode)
        const drained = await withinMs(settlement, this.spec.graceMs)
        if (drained !== undefined) return this.commandOutcome(drained, exitCode)
        this.outputDrainExpired = true
        this.stdoutReader?.invalidateSpill()
        this.stderrReader?.invalidateSpill()
        // Release inherited-output waits so a callback blocked on host
        // backpressure cannot keep the disconnected SDK settlement pending.
        this.outputReleased.abort(new Error('subprocess-e2b: output drain grace expired'))
        await handle.disconnect()
        return { exitCode, signal: null }
      }
      if (completed !== undefined) return this.commandOutcome(completed)
      // TODO(e2b-status-watch): Replace collect/inherit control-plane polling
      // when E2B can observe direct-command exit independently of descendant-held output.
      completed = await Promise.race([settlement, waitTick(this.pollMs).then(() => undefined)])
    }

View on GitHub (pinned to b150a551b8)

When it happens

Trigger: Thrown at packages/e2b/subprocess-e2b/src/process.ts:527 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/a1e421600f93bab5. Report an issue: GitHub.