refusing to spawn agent: task has no workspace_id (task_id=%

Error message

refusing to spawn agent: task has no workspace_id (task_id=%s)

What it means

Error "refusing to spawn agent: task has no workspace_id (task_id=%s)" thrown in multica-ai/multica.

Source

Thrown at server/internal/daemon/daemon.go:6084

	}
	return SkillRefData{
		ID:        bundle.ID,
		Source:    bundle.Source,
		Hash:      manifest.Hash,
		SizeBytes: manifest.SizeBytes,
		FileCount: manifest.FileCount,
		Files:     fileRefs,
	}
}

func (d *Daemon) runTask(ctx context.Context, task Task, provider string, slot int, taskLog *slog.Logger) (taskResult TaskResult, returnErr error) {
	// Refuse to spawn an agent without a workspace. An empty workspace_id
	// here would make MULTICA_WORKSPACE_ID empty in the agent env, and the
	// CLI would otherwise silently fall back to the user-global config — a
	// path that can leak operations into an unrelated workspace when
	// multiple workspaces share a host.
	if task.WorkspaceID == "" {
		return TaskResult{}, fmt.Errorf("refusing to spawn agent: task has no workspace_id (task_id=%s)", task.ID)
	}

	prepareTimeout := d.effectiveTaskPrepareTimeout()
	prepareCtx, cancelPrepare := context.WithTimeoutCause(ctx, prepareTimeout, errTaskPrepareTimeout)
	prepareComplete := false
	defer func() {
		cancelPrepare()
		if prepareComplete || returnErr == nil || !errors.Is(context.Cause(prepareCtx), errTaskPrepareTimeout) {
			return
		}
		// Collapse every deadline shape (context deadline, HTTP cancellation,
		// or the explicit waitForExecutionEnvironment cause) into one sentinel
		// that handleTask can classify as a retryable platform timeout.
		taskResult = TaskResult{}
		returnErr = fmt.Errorf("%w after %s", errTaskPrepareTimeout, prepareTimeout)
	}()

	// task.Repos is the authoritative repo list for this task — when the

View on GitHub (pinned to 2c0912b6ec)

Solutions

Recreate the task with a workspace_id; the daemon refuses to spawn agents without one.

When it happens

Trigger: Thrown at server/internal/daemon/daemon.go:6084 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of multica-ai/multica@2c0912b6ec (2026-08-15). Data as JSON: /api/errors/b006dd618a746276. Report an issue: GitHub.