deepseek-ai/deepseek-harness · error

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

Error message

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

What it means

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

Source

Thrown at packages/schedule/schedule/src/runtime.ts:302

            this.agent.session.append('schedule/change', {
              version: 1,
              operation: 'dispatch',
              id: decision.record.id,
            })
          } else {
            for (const reminder of decision.reminders) {
              this.agent.session.append('schedule/change', {
                version: 1,
                operation: 'dispatch',
                id: reminder.record.id,
                acceptedAt: decision.acceptedAt,
              })
            }
          }
        } catch (error: unknown) {
          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

View on GitHub (pinned to b150a551b8)

Solutions

1. Inspect the embedded error from the dispatch append and fix the persistence or session-write failure it names.

When it happens

Trigger: Thrown at packages/schedule/schedule/src/runtime.ts:302 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/e36ad3f85d1ea641. Report an issue: GitHub.