deepseek-ai/deepseek-harness · error

schedule: dispatch barrier failed for agent "${this.agent.id

Error message

schedule: dispatch barrier failed for agent "${this.agent.id}": ${renderThrown(error)}

What it means

Error "schedule: dispatch barrier failed for agent "${this.agent.id}": ${renderThrown(error)}" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/schedule/schedule/src/runtime.ts:318

          this.faulted = true
          this.clearTimer()
          this.ctx.logger.warn(`schedule: dispatch append failed for agent "${this.agent.id}": ${renderThrown(error)}`)
          return Promise.resolve(false)
        }
        return Promise.resolve(true)
      })
    } catch (_busy: unknown) {
      // `runMaintenance` rejects synchronously only while another agent activity owns the idle phase.
      if (this.isLive()) this.waitForIdle()
      return
    }
    if (!await maintenance) return

    try {
      await flushSchedulePersistence(this.ctx, this.agent.session)
    } catch (error: unknown) {
      if (this.isLive()) {
        this.ctx.logger.warn(`schedule: dispatch barrier failed for agent "${this.agent.id}": ${renderThrown(error)}`)
      }
      return
    }
    if (this.isRunnable()) this.requestDrive()
  }
}

View on GitHub (pinned to b150a551b8)

Solutions

1. Inspect the embedded error from the dispatch barrier and fix the synchronization failure it names.

When it happens

Trigger: Thrown at packages/schedule/schedule/src/runtime.ts:318 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/2c97cfa701e23924. Report an issue: GitHub.